NORBERT BARTEL, Ph.D. Distinguished Research Professor2004 Alexander Novikov York University Graduate of the Lebedev Physical Institute, Moscow, Russia He worked on the search of pulsed

NORBERT BARTEL, Ph.D. Distinguished Research Professor

Department of Physics and Astronomy

York University, Toronto 416-736-5424, [email protected], www.yorku.ca/bartel

EMPLOYMENT HISTORY: 1992- Professor, Department of Physics and Astronomy, York University,

Toronto, Canada 1986-1992 Lecturer. Astronomy, Harvard University, Cambridge, MA, U.S.A. 1983-1992 Research Associate at the Harvard-Smithsonian Center for Astrophysics,

Cambridge, MA, U.S.A. 1980-1982 Visiting Scientist at the Massachusetts Institute of Technology,

Cambridge, MA, U.S.A. 1978-1980 Research Scientist, Max-Planck-Institut für Radioastronomie, Bonn,

Federal Republic of Germany HONOURS and TITLES: 1979 Otto Hahn Medal, Max-Planck Society, Federal Republic of Germany 2006 Distinguished Research Professor, York University, Toronto, Canada 2015 Established Research Award, Faculty of Science, York University, Toronto, Canada DEGREES: 1978 Ph.D., Physics/Astronomy University of Bonn and Max-Planck-Institut für Radioastronomie Bonn, Federal Republic of Germany 1975 M.Sc., Diplom in Physics

Norbert Bartel Curriculum Vitae

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University of Bonn and Max-Planck-Institut für Radioastronomie Bonn, Federal Republic of Germany 1972 B.Sc., Vordiplom in Physics University of Hamburg, Federal Republic of Germany


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PROFESSIONAL SOCIETIES: Member of the Astronomische Gesellschaft (AG) Member of the American Astronomical Society (AAS) Member of the International Astronomical Union (IAU) Member of the International Union of Radio Science (URSI Commission J) Member of the Canadian Astronomical Society (CASCA) RESEARCH AREAS: Radio astronomy and astrometry, observational tests of general relativity My research is focussed on galactic and extragalactic compact radio sources such as supernovae, pulsars, black hole candidates, radio stars and the cores of radio galaxies and quasars. With the technique of very-long-baseline interferometry (VLBI) we image these sources and determine their positions, proper motions and kinematics with an angular resolution and precision 1,000 times better than with optical telescopes on Earth. In particular, we make sequences of images of young, rapidly expanding supernovae, study the interaction of their shock fronts with the circumstellar medium, search for pulsars and black holes in their centres and compose the results in a “movie of an exploding star.” As a spin-off, we obtain vital information for determining the distance to the host galaxy and the extragalactic distance scale. Also, we investigate the jets of energetic particles emanating from the active centers of superluminal radio galaxies and quasars. These jets have relativistic speeds, which appear on the sky to be faster than the speed of light. Our studies help to understand the physics of the immediate environment of the active centers, which are believed to be supermassive black holes. I am a Board member of the International Steering Committee of the Russian-led space VLBI mission “RadioAstron.” The main part of the mission is a 10-m diameter radio telescope the larges telescope ever in space. It is in a highly eccentric orbit around Earth with an apogee height of about 350,000 km. This mission extends the technique of VLBI into space providing a further improvement in the angular resolution power for observations of black hole environments and pulsars. We also use this mission is for an accurate measurement of the gravitational redshift, potentially the most accurate ever for testing the equivalence principle and general relativity. I have been involved in the support of the US$ 750M space-borne Gravity Probe B GP-B) mission developed by NASA and Stanford University, whose goal was to monitor the


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precessions of on-board gyroscopes with respect to a bright guide star to test two predictions of general relativity, the geodesic effect and frame dragging. The former is caused by the bending of space-time due to a massive body like the Earth and the latter is caused by the warping of space-time due to the rotation of a massive body like the Earth around its axis. Frame dragging could be fundamentally responsible for the physical phenomena near supermassive black holes seen in the most powerful sources of the universe, quasars and other centers of active galactic nuclei. The experiment is considered to be the most difficult ever conducted in space. Together with I. Shapiro (Harvard-Smithsonian Center for Astrophysics) I was the Co-PI for the VLBI project to determined the proper motion of the GP-B guide star with respect to distant quasars. This determination was necessary for the experiment so that the precessions could be referred to the (quasi) inertial extragalactic reference frame and to the distant universe. The mission came to a successful conclusion in 2011. Frame dragging was confirmed to exist. SCHOLARLY AND PROFESSIONAL ACTIVITIES: UNIVERSITY SERVICE: Department of Physics and Astronomy 1993 Seminar series organizer 1993-- Member and/or chair of various committees, such as curriculum

committee, tenure and promotion committee, search committee for a new chair of the department, recruitment and retention committee, occasionally Acting Chair

1995-2005 Coordinator of the Space and Communication Sciences (SCS) Programme 1995-2005 Executive Committee Faculty of Science: 1994-- Member of one Committee per year 1995-2002 Faculty Advisor for the SEDS club (Students for the Exploration and


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Development of Space) 1995-1998 Design and construction of an antenna lab for satellite communications

and ham radio. NATIONAL AND INTERNATIONAL RESPONSIBILITIES: 1980 IAU Symposium No. 95, Pulsars, member of Local Organizing Committee 1984 Workshop, Supernovae as Distance Indicators, organizer and co-chair 1987 IAU Symposium No. 129, The Impact of VLBI on Astrophysics and

Geophysics, member of the Local Organizing Committee 1989 Advisory activity for the DLR (German Aerospace Research

Establishment), Division of Radio Frequency Technology 1990-- Member of the Science Objective Group (SOC) of the Soviet space VLBI

project RADIOASTRON 1990 Representative of NASA at the conference on "Propagation Effects in

Space VLBI,” Leningrad, USSR, May 28-30 1992-- Member of the Special Study Group 2.109 of the International Association

of Geodesy, "Application of Space VLBI in the Field of Astrometry and Geodynamics"

1992-2001 Member of the Managing Group for the Algonquin Space Complex

(formerly Algonquin Radio Observatory) 1997-2000 Member of the Radio Astronomy Subcommittee of the Canadian

Astronomical Society (CASCA) 1997-2001 Member of the CASCA Space Astronomy Committee (JSSA) 1997-2000 Chair, CASCA Radio Astronomy Committee 1998--2005 Member of the VSOP (Space VLBI) Science Review Committee


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2002--2005 Member of the Square-Kilometer-Array (SKA) Steering Committee in Canada 2002-2005 Member of the John Charles Polanyi Prizes Selection Committee 2004-2005 CAP Lecturer (CAP:Canadian Association of Physicists), invited speaker

at Canadian Universities, topic: Testing Einstein’s Universe 2005-- 2012 Chair, Canadian Square-Kilometer-Array (SKA) Science Advisory

Committee 2005--2014 Board member of the Canadian Square-Kilometer-Array (SKA)

Consortium 2008-- Member of International Steering Committee for the Russian-led

spacecraft mission RadioAstron 2010--2014 Member, Australian-led VLBI ASKAP SKA pathfinder survey project 2012-- Co-Chair, Gravity Working Group of the RadioAstron mission 2015-- Member, ACURA Advisory Council on the SKA (AACS) 2015-- Associate member, SKA focus group -VLBI working group SUPERVISORY ACTIVITIES Senior Research Associate: 1993-- Michael Bietenholz (Ph.D.)

York University (part-time), also Hartebeesthoek Radio Astronomical Observatory, South Africa (part-time position as research scientist). He worked on the guide star for the Gravity Probe B mission, and continues to work on VLBI research of pulsars, supernovae and the cores of radio galaxies and quasars. He is an independent research scientist and helps to supervise graduate students and visitors in my group. He is also computer system administrator of the group.


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Research Associate: 2004 Alexander Novikov York University Graduate of the Lebedev Physical Institute, Moscow, Russia He worked on the search of pulsed emission from SN 1986J using the S2

baseband recording system. He is now lab supervisor for engineering students at York.

Postdoctoral Fellows:

2003-- 2006 Ryan R. Ransom York University

Graduate of York University, 2003 Research Area: VLBI Investigations of the guide star, IM Pegasi, of the Gravity Probe B mission.

2005 Vladislav Kondratiev York University Graduate of the Lebedev Physical Institute, Moscow, Russia He works on pulsar emission mechanisms and on the timing of pulsars

using the Canadian S2 tape-based VLBI recording system and the MK5 disk-based VLBI recording system.

Visiting Scientist: 1994-1995 Alexandre Andrei (Ph.D.)

York University Graduate of University of Cambridge, England, 1989 Head of the Astrolabe Group of the National Observatory, Rio de Janeiro, Brazil Research area: Radio and optical astrometric reference frames

Project Scientist - Consultant: 1994-1997 Rongshi Pan (Ph.D.)

York University Graduate of Shanghai Observatory, 1981


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Associate Professor, Shanghai Observatory (till 1991) Project Scientist/Consultant Research area: General Relativity, astrometric reference frames, geophysics.

Assistant: 1997-2002 Adam Jeziak (B.Sc.)

Graduate of York University, 1998 He worked on animation for the movie “Supernova: Death of a star” and for the movie “Gravity Probe B – Testing Einstein with Orbiting Gyroscopes”

Graduate student thesis supervision 1994-1996 Angelic Ebbers (M.Sc. student) York University

She worked on VLBI Astrometry of the Compact Core of M81 with an Interactive Phase-Connection Software Package. Not finished because of attractive job opportunity. Now software engineer at company in Ottawa.

1995-1997 Barkat Sorathia (Ph.D. student) York University He worked on VLBI research of the Nuclear Jet in Cygnus A. Thesis: "Multifrequency-Synthesis Imaging of the Nuclear Jet in the Radio Galaxy Cygnus A,” not finished. Now Chairman and Managing Director of Barso Global Management Ltd.

1995- 1997 David Del Rizzo (M.Sc. student)

York University/Dominion Radio Astrophysical Observatory He worked on VLBI research of pulsars (on part-time basis); thesis postponed. Now at DRAO, Penticton, Canada.

1995-1998 Ryan Ransom (M.Sc. student) York University, NSERC stipend recipient He worked on VLBI research of radio stars. Thesis: “VLBI Investigation of the Candidate Guide Stars of the


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NASA/Stanford Spaceborne Relativity Mission, Gravity Probe B,” (1997). Now professor at Okanagan College, Penticton, BC

1997-1998 Nelson Nunes (M.Sc. student)

York University, NSERC stipend recipient He worked on VLBI research of pulsars and quasars; thesis not finished because of work on start-up company, now President and Co-Founder of ADBASE, Inc.

1998- 2003 Ryan Ransom (Ph.D. student)

York University, NSERC stipend recipient He worked under my supervision on VLBI support for the NASA/Stanford Spaceborne Relativity Mission, Gravity Probe B. Thesis: “VLBI Imaging and Astrometry of the Gravity Probe B Guide Star HR 8703,’’ (2003). Now professor at Okanagan College, Penticton, BC.

2003--2006 Jerusha H. Lederman (M.Sc. student) York University She worked on VLBI support for the NASA/Stanford Spaceborne Relativity

mission, Gravity Probe B. Thesis: “Structural Changes of the Quasar 3C454.3 used as an

Extragalactic Reference Source for the Gravity probe B Mission,” (2006). Now Ph.D. student in CRESS, York University 2005--2007 Peter Luca (M.Sc. student) York University

He worked on high-dynamic range mapping of the quasar 3C454.3 to search for the counter jet. Thesis: “High sensitivity VLBI study of the quasar 3C454.3.” (2007). Physics high school teacher.

2007-- Sasha (Alexandre) Novikov (Ph.D. part-time student, interrupted, likely

finishing in 2016) York University

Thesis: “Extremely compact sources in the Universe – giant pulses and the kinematics of the cores of quasars.” Now

2009--2013 Bahman Karimi (M.Sc.) York University

Thesis: ”Investigation of Deconvolution Effects for SN 1993J using Simulations of a Spherical Shell Model.” Now tutor for physics students and lecturer at a College in Toronto.


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Graduate student project supervision 2014-2015 Keaven Moore

York University Project title: “The influence of the ionosphere and the troposphere on the gravitational redshift experiment with the spacecraft RadioAstron”

Graduate student thesis co-supervision as member of supervisory committee (last 6 years only) 2001-- 2009 Ryan Christoper (Ph.D.)

York University Thesis: The Development and maintenance of AGN. (Supervisor, M. De Robertis)

2002- 2011 Robin Metcalfe (Ph.D.) York University Thesis: Probing the Uniformity of the Local Sheet Environment. (Supervisor: M. De Robertis)

2005- 2011 Xiaoyi Dong (Ph.D.)

York University Thesis: Detect AGNs using multi-filter imaging data (2011). (Supervisor: M. De Robertis)

2007-2011 Jesse Rogerson (M.Sc.) York University

Thesis: X-ray observations of two unusual BAL quasars. (Supervisor: P. Hall)

2007-2011 Jesse Rogerson (M.Sc.) York University

Thesis: X-ray observations of two unusual BAL quasars. (Supervisor: P. Hall)

2009-2011 Stuart Dack (M.Sc.) York University

Thesis: The chemical compositions and the evolution of galaxies.


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(Supervisor: M. McCall)

2011- Jesse Rogerson (Ph.D.) York University

Thesis: Colour variability of quasars in Stripe 82. (Supervisor: P. Hall)

2011-2013 George Conidis (M.Sc.) York University

Thesis: Galactic catalogue of massive member components of the local sheet. (Supervisor: M. McCall)

2013- 2015 Ryan Deneault (M.Sc.) York University

Thesis: Warm-hot intergalactic gas in the local sheet. (Supervisor: M. McCall)

Undergraduate student project supervision: 2014-2014 Keaven Moore

York University Project title: “Gravitational redshift observed from RadioAstron mission”

2015-2015 Natalee Galati York University Project title: “The optical and radio properties of SN 2011dh” She also worked on archiving of gravitational redshift data from the spacecraft RadiaAstron.

2015-2016 Brandon Parsons York University Project title: “The orbital evolution of the spacecraft RadioAstron”

Research Assistant supervision: 2015- Bahman Karimi

York University Project title: “Analysis of errors in VLBI images of supernovae”


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UNDERGRADUATE COURSES: Harvard University: 1983-1985 Galactic Astronomy: Course for about 10 graduate students. Guest

lecturer for this course conducting sessions on specific subjects such as supernovae, supernova remnants, and pulsars.

1986-1987 The Astronomical Universe: Introductory course for about 150 students. I

taught as "lecturer" tutorials for about 25 undergraduate students. Teaching included correction of weekly homework and quizzes and grading of mid-term and final exams and a term paper.

1988-1989 Matter in the Universe: More challenging alternative to the above course,

also for about 150 students. Similar teaching responsibilities as for the year before.

York University: 1992-- PHYS 3250.03 W

Introduction to Space Communications Course for about 15 to 20 students

2006- PHYS 4330.03 W

Radio Science and Techniques for Space Exploration Course for about 12 students

2009- PHYS 1470.03 W Highlights of Astronomy Course for about 60 science students 2010- 2010 NATS 1740.06 Y

Astronomy Course for about 500 non-science majors


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1993--2005 PHYS 4250.03 F Signal and Communications Theory Course for about 10 to 35 students

1994-1995 PHYS 4100.03 W

Special Topics Supervised study for 1 student

1994--2005 NATS 1740.06 Y

Astronomy Course for about 500 non-science majors

1994--2005 PHYS 4001.06 Y

Space and Communication Sciences Workshop Interdisciplinary course for about 15 students (Supervisor for individual students and/or director of course)

1995-2002 PHYS 3001.01 W

Organization and Management Seminar in Space and Communication Sciences Interdisciplinary course for about 15 students (Organizer for the Physics and Astronomy Department, Director in 2002)

1995-- 2004 PHYS 4450.03 W

Spacecraft Systems Interdisciplinary course for about 8 students given at several universities simultaneously (Local coordinator)

2004--2005 PHYS 4060.03 W Time Series and Spectral Analysis (cross-listed with PHYS 4250.03) Course for about 35 students

2004--2005 ESSE 4020.03 W Time Series and Spectral Analysis (cross-listed with PHYS 4250.03) Course for about 35 students

2004--2005 MATH 4830.03 W

Time Series and Spectral Analysis


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(cross-listed with PHYS 4250.03) Course for about 35 students

2006- 2009 PHYS 1070.03 W

Astronomy Course for about 60 students

Note: Sabbatical year in 2000-2001, no courses. Sabbatical year in 2005-2006, no courses. Sabbatical year in 2012-2013, no courses. GRADUATE COURSES: 1995-1998 PHYS 5490.03 F

Astronomical Research Supervised study for 1 student per year

1997- PHYS 6190.03 W

Radio Interferometry Course for about 3 students

2004--2005 ESSE 5020.03 W

Time Series and Spectral Analysis (cross-listed with PHYS 4250.03) Course for about 5 students

2013- PHYS 6210.01 F Supernovae, Neutron Stars and Black Holes Course for about 3 students 2014- PHYS 6211.01 F The Universe at Radio Wavelengths Course for about 3 students


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GRANTS AND CONTRACTS:

1992 York University - Special Research Fund N. Bartel $90,000 1992 York University - Generic Research Fund N. Bartel $1,025 1993-1995 NSERC Research Operating Grant N. Bartel $35,000/year 1993 NSERC Equipment Grant N. Bartel $11,931 1993 York University - Generic Research Fund N. Bartel $1,025 1993 York University – President’s NSERC

Fund N. Bartel $5,000

1994 York University Generic Research Fund N. Bartel $1,000 1994 York University - Special Research Fund N. Bartel $27,000 1994 York University – President’s NSERC


1995 York University - Generic Research Grant N. Bartel $900 1995 York University – President’s NSERC


1995 NSERC Equipment grant N. Bartel, M. De

Robertis, M. McCall, J. Laframboise

$30,000

1994-1997 Harvard-SAO/Stanford Contract for VLBI

support of Gravity Probe B N. Bartel $304,940 US

1996-1999 NSERC Research Operating Grant N. Bartel $40,000 /year 1998-1999 Harvard-SAO/Stanford Contractor VLBI

support of Gravity Probe B N. Bartel $299,410 US

1998-2000 Australian Research Council Large Grant Support (for Supernova research)

L. Ball, A. Beasley M. Rupen, N. Bartel

$178,000


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2000-2001 Harvard-SAO/Stanford Contract N. Bartel $367,380 US 2000-2004 NSERC Research Operating Grant N. Bartel $31,000/year 2002-2003 Harvard-SAO/Stanford Contract N. Bartel $382,980 US 2004-2006 Harvard-SAO/Stanford Contract N. Bartel $634,190 US 2005-2009 2011-2015

NSERC Research Operating Grant NSERC Research Operating Grant

N. Bartel N. Bartel

$32,900/year $22,000/year

2012-2013 YUFA Sabbatical Leave Fellowship N. Bartel $12,482 Total Harvard –SAO/Stanford Contract (incl. 68% overhead) $1,988,900 US Total NSERC Research operating grant: $ 694,500 Total from other grants and funds: $ 361,363 Faculty of Science MERIT AWARDS Three $2000 awards. PUBLICATIONS: SUMMARY: Books 1

Films 5 Papers in Refereed Journals (one submitted) 113 First Author in Papers in Refereed Journals 33 Papers in Nature (with one submitted) 8 First Author in Papers in Nature 5 Papers in Science 2 First author in Papers in Science 1 First Author in Inv. Rev. for Special Issue 1


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Memoranda 2 Papers in Conference Proceedings 67 IAU Circulars and Telegrams 7

ORAL PRESENTATIONS: About five oral presentations at universities, workshops and symposia per year, about three of them invited. BOOK: 1. Bartel, N. (ed.), 1985. Proceedings of a workshop at the Harvard-Smithsonian

Center for Astrophysics, 27-28 September 1984, Supernovae as Distance Indicators, Lecture Notes in Physics, No. 224 (Springer Verlag, Berlin, Heidelberg, New York, Tokyo), 226 pages

FILMS: 1. Bartel, N. and Bietenholz, M.F. 1997. “Supernova: Death of a Star,” 3.5 min.

First version. 2. Bartel, N., 2000. “Gravity Probe B, Testing Einstein with Orbiting Gyroscopes,”

fully animated, 16min, for educational purposes. First version. 3. Bartel, N., 2004. “Supernova: Death of a Star,” second version, fully animated,

narrated, 16min, for educational purposes. DVD sold through York Bookstore, e-Commerce.

4. Bartel, N., 2004. “Testing Einstein’s Universe,” animated, narrated, live

interviews, 26min, for educational purposes. 5. Bartel, N. 2004. "Extra Information" for the film Testing Einstein's Universe

13 topics: Newton's Gravity, Maxwell's Electromagnetism, Atoms, Nuclei, and Quarks, Quantum Mechanics,


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Special Relativity, General Relativity, Hope for Unification, Spacetime, Previous Test of General Relativity, Quasars, Guide Star for Gravity Probe B, Very-Long-Baseline Interferometry Gravity Probe B in a Nutshell

Animated, narrated, live interviews with York Physics and Astronomy Professors, 80min, for educational purposes. On DVD together with "Testing Einstein's Universe," sold through York bookstore and e-commerce.

PAPERS IN REFEREED JOURNALS: 1. Bartel, N., Sieber W. and Wielebinski, R., 1977. “Detection of Two Pulsars at

22.7 GHz,” Astr. Ap. 55, 319-320. 2. Bartel, N., 1978. “Direct Observation of Pulsar Microstructure at Timescales

Down to 6 :s,” Astr. Ap. 62, 393-396. 3. Bartel, N., Sieber, W. and Wielebinski, R., 1978. “Observations of Pulsars at 14.8

and 22.7 GHz,” Astr. Ap. 68, 361-365. 4. Bartel, N., and Sieber, W., 1978. “Simultaneous Single Pulse Observations of

Radio Pulsars at Two Widely Spaced Frequencies,” Astr. Ap. 70, 307-310. 5. Morris, D., Sieber, W., Ferguson, D.C. and Bartel, N., 1980. “Changes in the

Average Pulse Shape of PSR 0355+54 at 11 cm Wavelength,” Astr. Ap. 84, 260-262.

6. Bartel, N., Sieber, W. and Graham, D.A., 1980. “The Millisecond Intensity

Variation in the Emission of Radio Pulsars,” Astr. Ap. 87, 282-291. 7. Bartel, N., Sieber, W. and Wolszczan, A., 1981. “Pulse to Pulse Intensity

Molulation from Radio Pulsars with Particular Concern of its Frequency Dependence,” Astr. Ap. 90, 58-64.


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8. Bartel, N., Sieber, W., Wielebinski, R., Kardashev, N.S., Nikolajev, N.Ya., Popov, M.V., Soglasnov, V.A., Kuzmin, A.S. and Smirnova, T.V., 1981. “Simultaneous Two Station Single Pulse Observations of Radio Pulsars Over a Broad Frequency Range. I. With Particular Reference to PSR 0809+74,” Astr. Ap. 93, 85-92.

9. Bartel, N., 1981. “Evidence for Ultra Broad Band Absorption of Radio Emission in

the Pulsar Magnetosphere,” Astr. Ap. 97, 384-387. 10. Wolszczan, A., Bartel, N. and Sieber, W., 1981. “Frequency Dependence of the

P2 and P3 Periods in Four Pulsars,” Astr. Ap. 100, 91-96. 11. Morris, D., Graham, D.A. and Bartel, N., 1981. “A Mode Change in the Radio

Emission from the Pulsar PSR 1822-09,” M.N.R.A.S. 194, 7-11. 12. Wolszczan, A., Bartel, N. and Sieber, W., 1981. “Spectrum of the Interstellar

Plasma Turbulence in the Direction of the Pulsar PSR 0329+54,” M.N.R.A.S. 196, 473-480.

13. Morris, D., Graham, D.A., Sieber, W., Bartel, N. and Thomasson, P., 1982.

“Observations of the Polarization of Average Pulsar Profiles at High Frequency,” Astr. Ap. (Supp.) 46, 421-472.

14. Matveenko, L.I., Kostenko, V.I., Papatsenko, A.Kh., Bartel, N., Massi, M.,

Romney, J.D., Weiler, K.W., Ficarra, A., Mantovani, F., Padrielli, L., Moiseev, I.G., Baath, L. and Nicolson, G.D., 1981. “Long Baseline Interferometry of Compact Radio Sources at 18 cm,” Pis'ma Astron. Zh. 7, 470-478, translated in Soviet Astron. Letters 7, 259-263.

15. Matveenko, L.I., Kostenko, V.I., Moiseev, I.G., Romney, J.D., Bartel, N., Padrielli,

L., Ficarra, A. and Mantovani, F., 1982. “The Fine Structure of 3C84 and 3C345 at 18-cm Wavelength,” Pis'ma Astron. Zh. 8, 148-152, translated in Soviet Astron. Letters 8, 77-79.

16. Bartel, N. and Hankins, T.H., 1982. “100 Nanosecond Time Resolution

Observations of PSR 1133+16,” Astrophys. J. (Lett.), 254, L35-L39. 17. Bartel, N., Morris, D., Sieber, W. and Hankins, T.H., 1982. “The Mode Switching

Phenomenon in Pulsars,” Astrophys. J. 258, 776.


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18. Kardashev, N.S., Nikolajev, N.Ya., Novikov, A.Yu., Popov, M.V., Soglasnov, V.A.,Kuzmin, A.D. , Smirnova, T.V., Bartel, N., Sieber, W. and Wielebinski, R., 1982. “PSR 1133+16: Determination of the Dispersion Measure and the Locations of the Emitting Regions,” Astr. Ap. 109, 340.

19. Bartel, N., Shapiro, I.I., Corey, B.E., Marcaide, J.M., Rogers, A.E.E., Whitney,

A.R., Cappallo, R.J., Graham, D.A., Romney, J.D. and Preston, R.A., 1982. “Nucleus of M81: Simultaneous 2.3 and 8.3 GHz Mark III VLBI Observations,” Astrophys J. 262, 556-563.

20. Bartel, N., Shapiro, I.I., Huchra, J.P. and Kühr, H., 1984. “The Compact Radio

Source 2021+614: A Peculiar Narrow-Line Radio Galaxy,” Astrophys. J. 279, 112-114.

21. Bartel, N., Shapiro, I.I., Corey, B.E., Marcaide, J.M., Rogers, A.E.E., Whitney,

A.R., Cappallo, R.J., Kühr, H., Graham, D.A. and Baath, L.B., 1984. “The Compact Radio Source 2021+614: Simultaneous 2.3 and 8.3 GHz Mark III VLBI Observations,” Astrophys. J. 279, 116-121.

22. Romney, J., Padrielli, L., Bartel, N., Weiler, K.W., Ficarra, A., Mantovani, F.,

Baath, L.B., Kogan, L., Matveenko, L., Moiseev, I.G. and Nicolson, G., 1984. “The Millisecond Structure of Low Frequency Variable Sources,” Astr. Ap. 135, 289-299.

23. Bartel, N., Ratner, M.I., Shapiro, I.I., Cappallo, R.J., Rogers, A.E.E. and Whitney,

A.R., 1985. “Pulsar Astrometry via VLBI,” Astron. J. 90, 318-325. 24. Marcaide, J.M., Shapiro, I.I., Corey, B.E., Cotton, W.D., Gorenstein, M.V.,

Rogers, A.E.E., Romney, J.D., Schild, R., Baath, L., Bartel, N., Cohen, N.L., Clark, T.A., Preston, R.A., Ratner, M.I. and Whitney, A.R., 1985. The Quasars 1038+528 A and B,” Astr. Ap. 142, 71-84.

25. Marcaide, J.M., Bartel, N., Gorenstein, M.V., Shapiro, I.I., Corey, B.E., Rogers,

A.E.E., Webber, J.C., Clark, T.A., Romney, J.D. and Preston, R.A., 1985. “The Quasar 4C39.25 is not Contracting,” Nature 314, 424-424.

26. Biermann, P., Strom, R. and Bartel, N., 1985. “NGC 6212: An Elliptical Galaxy

with a Highly Active Nucleus,” Astr. Ap. (Lett.) 147, L27-L28.


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27. Bartel, N., Ratner, M.I., Shapiro, I.I., Cappallo, R.J., Rogers, A.E.E. and Whitney, A.R., 1985. “Investigation of Radiation from Pulsar PSR 0329+54 Using Mark III VLBI Observations,” Astron. J. 90, 2532-2539.

28. Bartel, N., Rogers, A.E.E., Shapiro, I.I., Gwinn, C.R., Marcaide, J.M. and Weiler,

K.W., 1985. ”Hubble's Constant Determined Using Very-Long-Baseline Interferometry of a Super-nova,” Nature 318, 25-30.

29. Bartel, N., Herring, T.A., Ratner, M.I., Shapiro, I.I. and Corey, B.E., 1986. “VLBI

Limits on the Proper Motion of the `Core' of the Superluminal Quasar 3C345,” Nature 319, 733-738.

30. Kühr, H., Stocke, J., Strittmatter, P.A., Bartel, N., Eckart, A., Schalinski, C.,

Witzel, A. and Biermann, P., 1986. “High-Resolution Radio Observations of the Most Luminous Quasar,” Astrophys. J. 302, 52-55.

31. Padrielli, L., Romney, J.D., Bartel, N., Fanti, R., Ficarra, A., Mantovani, F.,

Matveenko, L., Nicolson, G.D. and Weiler, K.W., 1986. “Two Epoch VLBI Observations of a Sample of Low Frequency Variable Sources,” Astr. Ap. 165, 53-73.

32. Marscher, A.P., Broderick, J.J., Padrielli, L., Bartel, N. and Romney, J.D., 1987.

“18-cm VLBI Observations of the Quasar NRAO 140 during and after a Low-Frequency Outburst,” Astrophys. J. 319, 456-464.

33. Bartel, N., Ratner, M.I. Rogers, A.E.E., Shapiro, I.I., Bonometti, R.J., Cohen,

N.L., Gorenstein, M.V., Marcaide, J.M. and Preston, R.A., 1987. “VLBI Observations of 23 Hot Spots in the Starburst Galaxy M82,” Astrophys. J. 323, 505-515.

34. Bartel, N., Dhawan, V., Krichbaum, T., Graham, D.A., Pauliny-Toth, I.I.K.,

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36. Gwinn, C.R., Cordes, J.M., Bartel, N., Wolszczan, A. and Mutel, R.L., 1988.

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37. Gorenstein, M.V., Cohen, N.L., Shapiro, I.I., Rogers, A.E.E., Bonometti, R.J.,

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38. Bartel, N., Shapiro, I.I. and Rupen, M.R. ,1989. “VLBI Observations of SN1986J:

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39. Dhawan, V., Bartel, N., Rogers, A.E.E., Rönnäng, B.O., Hirabayashi, H., Inoue,

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40. Krichbaum, T.P., Booth, R.S., Kus, A.J., Rönnäng, B.O., Witzel, A., Graham,

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41. Bartel, N., Rupen, M.P., Shapiro, I.I., Preston, R.A., and Rius, A., 1991. “A

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44. Marcaide, J.M., Alberdi, A., Bartel, N., Clark, T.A., Corey, B.E., Elosegui, P.,

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45. Krichbaum, T.P., Witzel, A., Graham, D.A., Alef, W., Pauliny-Toth, I.I.K.,

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46. Gwinn, C.R., Bartel, N., and Cordes, J.M., 1993. “Angular Broadening of Pulsars

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47. Alberdi, A., Krichbaum, T.P., Marcaide, J.M., Witzel, A., Graham, D.A., Inoue, M.,

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48. Krichbaum, T.P., Zensus, J.A., Witzel, A., Mezger, P.G., Standke, K.J.,

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49. Bartel, N., Bietenholz, M.F., Rupen, M.P., Conway, J.E., Beasley, A.J., Sramek,

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50. Carilli, C.L., Bartel, N., and Diamond, P., 1994. ”Second Epoch VLBI

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51. Bartel, N., Sorathia, B., Bietenholz, M.F., Carilli, C.L., and Diamond, P., 1995.

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52. Bartel, N., Bietenholz, M.F. and Rupen, M.P., 1995. “The Nuclear Region of the Spiral Galaxy M81," Natl. Acad. Sci. 92, 11374-11376.

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66. Bietenholz, M.F. and Bartel. N., 2002. “SN 1986J VLBI. The Evolution and

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70. Bartel, N. and Bietenholz, M. F., 2002. “SN 1979C VLBI: 22 Years of Almost Free Expansion," Astrophys. J. 591, 301-315.

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77. Bartel, N., Bietenholz, M.F., and Rupen, M.P., 2005. “A VLBI search for pulsar

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82. Johnston, S., Bailes, M., Bartel, N., Baugh, C., Bietenholz, M., Blake, C. (+44

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2013, “The Proper Motion of PSR J0205+6449 in 3C 58”, MNRAS 431, 2590 – 2598.

105. Chakraborti, S., Soderberg, A., Chomiuk, L., Kamble, A., Yadav, N., Ray, A.,

Hurley, K., Margutti, R., Milisavljevic, D., Bietenholz, M. F., Brunthaler, A., Pignata, G., Pian, E., Mazzali, P., Fransson, C., Bartel, N., Hamuy, M., Levesque, E., MacFadyen, A., Dittmann, J., Krauss, M., Briggs, M. S., Connaughton, V., Yamaoka, K., Takahashi, T., Ohno, M., Fukazawa, Y., Tashiro, M., Terada, Y., Murakami, T., Goldsten, J., Barthelmy, S., Gehrels, N., Cummings, J., Krimm, H., Palmer, D., Golenetskii, S., Aptekar, R., Frederiks, D., Svinkin, D., Cline, T., Mitrofanov, I. G., Golovin, D., Litvak, M. L., Sanin, A. B., Fellows, C., Harshman, K., Enos, H., von Kienlin, A., Rau, A., Zhang, X., Savchenko, V. 2015, “A Missing-Link in the Supernova-GRB Connection: The Case of SN 2012ap”, ApJ, 805, 187-194.

106. Smirnova, T. V., Shishov, V. I., Popov, M. V., Gwinn, C. R., Anderson, J. M.,

Andrianov, A. S., Bartel, N., Deller, A., Johnson, M. D., Joshi, B. C., Kardashev, N. S., Karrupusamy, R., Kovalev, Y. Y., Kramer, M., Soglasnov, V. A., Zensus, J. A., Zhuravlev, V. I. 2014, “RadioAstron Studies of the Nearby, Turbulent Interstellar Plasma With the longest Space-Ground Interferometer Baseline”, ApJ, 786, 115--128.

107. Bietenholz, M. F., De Colle, F., Granot, J., Bartel, N., Soderberg, A. M. 2014,

“Radio limits on the off-axis GRB afterglows and VLBI observations of SN 2003gk”, MNRAS.440. 821-832.

108. King, A. L., Miller, J. M., Bietenholz, M., Gültekin, K., Reynolds, M.,

Mioduszewski, A., Rupen, M., Bartel, N. 2015, “The rate of gas accretion onto black holes drives jet velocity”, ApJ, 799, L8-L12.

109. Bartel, N., Bietenholz, M. F., Lebach, D. E., Ransom, R. R., Ratner, R. I.,

Shapiro, I. I. 2015, “VLBI for Gravity Probe B: The guide star IM Pegasi”, invited review, Special Issue: Gravity Probe B, Classical and Quantum Gravity, in press.

110. De Witt, A., Bietenholz, M. F., Kamble, A., Soderberg, A. M., Brunthaler, A., Zauderer, B., Bartel, N., Rupen, M. P. 2015, “Imaging the expanding shell of SN 2011dh”, MNRAS, in press.

111. Popov, M. V., Bartel, N.,Andrianov, A., Gwinn, C., Johnson, Joshi, B. C., Kardashev, N., Karuppusamy, R., Kovalev, Y. Y., Kramer, M., Rudnitskii, A.,


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Safutdinov, E. R., Shishov, V., Smirnova, T., Soglasnov, V. A., Zensus, A., Zhuravlev, V. 2015, “PSR B0329+54: Substructure in the scatter-broadened image discovered with RadioAstron with up to 235,000 km baselines”, submitted to ApJ.

112. Popov, M. V., Gwinn, C., Bartel, N.,Andrianov, A., Johnson, Joshi, B. C., Kardashev, N., Karuppusamy, R., Kovalev, Y. Y., Kramer, M., Rudnitskii, A., Safutdinov, E. R., Shishov, V., Smirnova, T., Soglasnov, V. A., Steinmassl, S., Zensus, A., Zhuravlev, V. 2015, “PSR B0329+54: Scattering structures on multiple scales observed with RadioAstron on baselines up to 235,000 km”, submitted to ApJ.

113. King, A. L., Miller, J. M., Bietenholz, M., Gültekin, K., Reynolds, M., Mioduszewski, A., Rupen, M., Bartel, N. 2015, “Discrete knot ejection from the jet in a nearby low luminosity AGN, M81*”, submitted to Nature Physics.

INVITED AND CONTRIBUTED PAPERS IN NON-REFEREED PROCEEDINGS: 1. Bartel, N., 1978. Mikrostrukturbeobachtungen des Radiopulsars PSR 1133+16

mit bis zu 2.6:s Zeitauflösung im Lichte der Relativistischen Beaming Theorie,” Mitteilungen der Astronomischen Gesellschaft 43, 241-246.

2. Sieber, W., Bösel, R., Hösgen, K. -H., and Bartel, N., 1978. “Probleme der

Datenaufbereitung bei Pulsarmessungen,” Kleinheubacher Berichte 21, 379-385. 3. Bartel, N., 1979. “Zum frequenzmässigen Verhalten der Einzelpulsintensitaten

von Radiopulsaren,” Mitteilungen der Astronomischen Gesellschaft 45, 145-146. 4. Bartel, N., 1980. “Multi Radio Frequency Observations of Pulsars,” IAU

Proceedings No. 95, Pulsars, eds., W. Sieber and R. Wielebinski, D. Reidel Publishing Co., Dordrecht, 117-185.

5. Bartel, N., Corey, B.E., Shapiro, I.I., Rogers, A.E.E., Whitney, A.R., Graham,

D.A., Romney, J.D., and Preston, R.A., 1982. “Mark III VLBI Observations of the Nucleus of M81 at 2.3 and 8.3 GHz,” IAU Proceedings No. 97, Extragalactic Radio Sources, eds. D.S. Heeschen, and C.M. Wade, D. Reidel Publishing Co., Dordrecht, 387-388.


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6. Bartel, N., Ratner, M.I., Shapiro, I.I., Herring, T.A., and Corey, B.E., 1984. “Proper Motion of Components of the Quasar 3C 345,” IAU Proceedings No. 110, VLBI and Compact Radio Sources, eds. R. Fanti, K.I. Kellermann, G. Setti, D. Reidel Publishing Co., Dordrecht, 113-116.

7. Bartel, N., Cappallo, R.J., Ratner, M.I., Rogers, A.E.E., Shapiro, I.I., and

Whitney, A. R., 1984. “Mark III VLBI Observations of Pulsars,” IAU Proceedings No. 110, VLBI and Compact Radio Sources, eds. R. Fanti, K.I. Kellermann, G. Setti, D. Reidel Publishing Co., Dordrecht, 275-276.

8. Marcaide, J.M., Shapiro, I.I., Ball, J.A., Bartel, N., Clark, T., Corey, B.,

Gorenstein, M., Preston, R., Ratner, M., Rogers, A., and Whitney, A., 1984. “Nearly Microarcsecond Precision Differential Astrometry,” IAU Proceedings No. 110, VLBI and Compact Radio Sources, eds. R. Fanti, K.I. Kellermann, G. Setti, D. Reidel Publishing Co., Dordrecht, 361-362.

9. Marcaide, J.M., Bartel, N., Cohen, N.L., Gorenstein, M.V., Shapiro, I.I., Corey,

B.E., Rogers, A.E.E., Bonometti, R., Preston, R.A., and Romney, J.D., 1985. ”Simultaneous Dual Wavelength VLBI Observations of the Compact Radio Source Near the Galactic Center,” Proceedings, Active Galactic Nuclei, ed. J.E. Dyson, Manchester University Press, Manchester, 50-53.

10. Bartel, N., 1985. “Angular Diameter Determinations of Radio Supernovae and the

Distance Scale, Proceedings, Supernovae as Distance Indicators,” Lecture Notes in Physics, No. 224, ed. N. Bartel, Springer Verlag, Berlin, Heidelberg, New York, Tokyo, 107-122.

11. Marcaide, J.M., Pauliny-Toth, I.I.K., Graham, D.A., Rönnäng, B., Booth, R.S.,

Bartel, N., Shapiro, I.I., Rogers, A.E.E., Dhawan, V., Burke, B.F., Johnston, K.J., and Spencer, J.H., 1985. “Millimeter-Wavelength VLBI: First Results from Intercontinental Observations With a Resolution of 0.2 Milliarcseconds, in (Sub) Millimeter Astronomy,” Proceedings of ESO-IRAM-Onsala Workshop held at Aspenäs, Sweden, ed. P.A. Shaver, K. Kjär, 157-167.

12. Bartel, N., 1986. “Supernovae and Cosmology,” Highlights of Astronomy, ed. J.P.

Swings, D. Reidel Publishing Co., Dordrecht, 7, 655-660. 13. Bartel, N., Ratner, M.I., Rogers, A.E.E., Shapiro, I.I., Bonometti, R.J., Cohen,

N.L., Gorenstein, M.V., and Marcaide, M.J., 1986. “VLBI Observations of the Compact Components in M82,” Highlights of Astronomy, ed. J.P. Swings, 7, 661-663.


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14. Padrielli, L., Aller, M.F., Aller, H.D., Bartel, N., Fanti, C., Fanti, R., Ficarra, A.,

Gregorini, L., Mantovani, F., Matveenko, L., Nicolson, G.D., Romney, J.D., and Weiler, K.W., 1986. “Flux Variations and Structural Changes in Extragalactic Radio Sources,” Structure and Evolution of Active Galactic Nuclei, ed. G. Giuricin et al, D. Reidel Publishing Co., Dordrecht, 653-657.

15. Bartel, N., Ratner, M., Shapiro, I., and Rogers, A., 1987. “VLBI Observations of

the M81-M82 Pair of Galaxies,” IAU Proceedings No. 121, Observational Evidence of Activity in Galaxies, eds. E. Ye. Khachikian, K.J. Fricke, and J. Melnick, D. Reidel Publishing Co., Dordrecht, 521-527.

16. Reynolds, J. E., Livermore, R. W., Jauncey, D. L., Preston, R. A., Gulkis, S., and

Bartel, N. 1988. “The Elusive Radio Source Supernova 1987A.” Proc. Astr. Soc. Austr. 7, 382-383.

17. Bartel, N., 1988. “Determinations of Distances to Radio Sources with VLBI,” IAU

Proceedings No. 129, The Impact of VLBI on Astrophysics and Geophysics, eds. M. Reid, J.M. Moran, D. Reidel Publishing Co., Dordrecht, 175-184.

18. Gorenstein, M.V., Bonometti, R.J., Cohen, N.L., Falco, E.E., Shapiro, I.I., Bartel,

N., Rogers, A.E.E., and Marcaide, J.M., 1988. “VLBI Observations of the 0957+561 Gravitational Lens System,” IAU Proceedings No. 129, The Impact of VLBI on Astrophysics and Geophysics, eds. M. Reid, J.M. Moran, D. Reidel Publishing Co., Dordrecht, 201-206.

19. Marcaide, J.M., Bartel, N., Corey, B.E., Cotton, W.D., Gorenstein, M.V., Preston,

R.A., Ratner, M.I., Rogers, A.E.E., and Shapiro, I.I., 1988. “Second Epoch of Simultaneous 83.6 and 813 cm Observations of the Pair of Quasars 1038+528 A, B,” IAU Proceedings No.129, The Impact of VLBI on Astrophysics and Geophysics, eds. M. Reid, J.M. Moran, D. Reidel Publishing Co., Dordrecht, 101-102.

20. Shapiro, I., Bartel, N., Preston,R., Jones, D., Kemball, A., Nicolson, G., Jauncey,

D., Reynolds, J., Whitney, A., Rogers, A., Phillips, R., Clark, T., and Robertson, D., 1988. “VLBI Observations of Supernova 1987A,” IAU Proceedings No. 129, The Impact of VLBI on Astrophysics and Geophysics, eds. M. Reid, J.M. Moran, D. Reidel Publishing Co., Dordrecht, 185-186.

21. Bartel, N., Jauncey, D.L., Kemball, A., Whitney, A.R., Rogers, A.E.E., Shapiro,

I.I., Preston, R.A., Harvey, B.R., Jones, D.L., Nicolson, G.D., Norris, R.P.,


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Nothnagel, A., Phillips, R.B., and Reynolds, J.E., 1988. “Radio Observations of SN1987A,” Supernova 1987A in the Large Magellanic Cloud, eds. M. Kafatos, A. Michalitsianos, Cambridge University Press, Cambridge, England, 81-86.

22. Gwinn, C.R., Cordes, J.M., Bartel, N., Wolszczan, A. and Mutel, R., 1988. “VLBI

Observations of the Scattering Disk of Pulsar 1933+16,” Proceedings No. 174, Radio Wave Scattering in the Interstellar Medium, eds. J.M. Cordes, B.J. Rickett, and D.C. Backer, American Institute of Physics, New York, 106-110.

23. Bartel, N., 1988. “Supernova VLBI, Supernova Shells and Their Birth Events,”

Lecture Notes in Physics, No. 316, ed. W. Kundt, Springer Verlag, Berlin, Heidelberg, New York, Tokyo, 206-218.

24. Tang, G., Bartel, N., Ratner, M.I., Shapiro, I.I., and Baath, L., 1990. “Recent

Evolution of Jet Components in 3C345 at 83.6 cm,” Parsec-Scale Radio Jets, eds. J.A. Zensus and T.J. Pearson, Cambridge University Press, Cambridge, England, 32-37.

25. Bartel, N., 1991. “VLBI Observations of Supernovae and their Remnants,”

Supernovae, ed. S. Woosley, Springer Verlag, New York, 503-514. 26. Bartel, N., 1991.“An Estimate of the Distance to M100 in the Virgo Cluster via

VLBI of SN1979C: Updates and Prospects,” Supernovae, ed. S. Woosley, Springer Verlag, New York, 760-765.

27. Bartel, N., 1991.“The Development of 7-mm VLBI,” Frontiers of VLBI, eds. H.

Hirabayashi, M. Inoue, and H. Kobayashi, Universal Academy Press, Inc., Tokyo, 313-317.

28. Biretta, J.A., Bartel, N., and Deng, J., 1991. “Dual-Frequency Synthesis VLBI

Observations of 3C84 at 18 cm Wavelength,” Radio Interferometry: Theory, Techniques and Applications, IAU Colloquium No. 113, eds. T.J. Cornwell and R.A. Perley, ASP Conference Series 19, 334-337.

29. Rupen, M.P., Bartel, N., and Foley, A.R., 1991. “VLBI Imaging of SN1986J,”

SN1987A and Other Supernovae, eds. I.J. Danziger and K. Kjär, ESO Workshop and Conference Proceedings 37, Garching, 645-649.

30. Bartel, N., 1993. “Tropospheric and Ionospheric Effects on Differential Astrometry

with a Ground-Space Based VLBI Array,” Propagation Effects in Space VLBI, ed.


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L. Gurvits, Astro Space Center, Moscow, National Astronomy and Ionosphere Center, Arecibo Observatory, 90-101.

31. Campbell, R.M., Bartel, N., Shapiro, I.I., Ratner, M.I., Cappallo, R.J., Whitney,

A.R., Cannon, W.H., Petrachenko, W.T., Popelar, J., and Eubanks, T.M., 1993. “Towards VLBI Determinations of Pulsar Parallaxes and Proper Motions,” Sub-Arcsecond Astronomy, ed. R.D. Spencer, Cambridge University Press, 410, 673-685.

32. Rupen, M.P., Conway, J.E., Beasley, A.J., Bartel, N., Bietenholz, M.F., Sramek,

R.A., Romney, J.D., Titus, M.A., Graham, D.A., Altunin, V.I., Jones, D.L., Rius, A., Venturi, T., Umana, G., Weiler, K.W., Van Dyk, S.D., Panagia, N., Cannon, W.H., Popelar, J., and Davis, R.J., 1994. “VLBI Observations of Supernova 1993J in M81: Shape Expansion, and Distance,” Proceedings, workshop on Compact Extragalactic Radio Sources, eds. J.A. Zensus and K.I. Kellermann, NRAO, Socorro, 103-108.

33. Bietenholz, M.F., Bartel, N., Rupen, M.P., Conway, J.E., Beasley, A.J. Sramek,

R.A., Romney, J.D., Titus, M.A., Graham, D.A., Altunin, V.I., Jones, D.L., Rius, A., Venturi, T., Umana, G., Weiler, K.W., Van Dyk, S.D., Panagia, N., Cannon, W.H., Popelar, J., and Davis, R.J., 1994. “The Compact Core of M81,” Proceedings, workshop on Compact Extragalactic Radio Sources, eds. J.A. Zensus and K.I. Kellermann, NRAO, Socorro, 109-114.

34. Bartel, N., Bietenholz, M.F., Rupen, M.P., Conway, J.E., Beasley, A.J., Sramek,

R.A., Romney, J.D., Titus, M.A., Graham, D.A., Altunin, V.I., Jones, D.L., Rius, A., Venturi, T., Umana, G., Francis, R.L., McCall, M.L., Richer, M.G., Stevenson, C.C., Weiler, K.W. , Van Dyk, S.D., Panagia, N., Canon, W.H., Popelar, J., and Davis, R.J., 1994. “First VLBI Images of SN1993J in M81,” URSI/IAU Symposium, VLBI Technology-Progress and New Observational Possibilities, eds. T. Sasao, S. Manabe, O. Kameya and M. Inoue, TERRA Scientific Publishing Company, Tokyo, p. 115-122.

35. Ratner, M.I., Lebach, D.E., Shapiro, I.I., and Bartel, N., 1996. Proceedings of the

7th Marcel Grossman Meeting on recent developments in theoretical and experimental general relativity, gravitation, and relativistic field theories, eds. R.T. Jantzen and G.M. Kaiser, Publ.: World Scientific, 1553-1554.

36. Bartel, N., Chandler, J.F., Ratner, M.I. and Shapiro, I.I., 1996. “VLBI Position

Determinations for the Millisecond Pulsar B1937+21,” in Pulsars: Problems and


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Progress, IAU Coll. 160, eds. S. Johnston, M.A. Walker and M. Bailes (ASP Conference Series Vol. 105, San Francisco), 111-112.

37. Wietfeldt, R., Van Straten, W., Del Rizzo, D., Bartel, N., Cannon, W., Bailes, M.,

Reynolds, J., and Wilson, W., 1996. “The S2 Baseband Processing System for Phase-coherent Pulsar Observations,” in Pulsars: Problems and Progress, IAU Coll. 160, eds. S. Johnston, M.A. Walker, and M. Bailes (ASP Conference Series Vol. 105, San Francisco), 21-22.

38. Sorathia, B., Bartel, N., Bietenholz, M.F., and Carilli, C.L., 1996. “The Parsec-

Scale Jet and Counterjet in Cygnus A,” in Cygnus A - A Study of a Radio Galaxy, eds. C.L. Carilli and D.E. Harris (Cambridge Univ. Press, Cambridge), 86-91.

39. Carilli, C.L., Perley, R.A., Bartel, N., and Dreher, J.W., 1996. “The Jets in Cygnus

A: from pc- to kpc-scales,” in Cygnus A - A Study of a Radio Galaxy, eds. C.L. Carilli and D.E. Harris (Cambridge Univ. Press, Cambridge), 76-85.

40. Andrei, A.H. and Bartel, N., 1996. “Cyg X-1, A Benchmark Star for Tying the

Optical and Radio Reference Frames,” Revista Mexicana de Astronomia y Astrophysica 4, 122-122.

41. Bartel, N., 1998. “Supernova VLBI,” SN1987A: Ten Years After, (ASP

Conference Series, San Francisco) in press. 42. Bietenholz, M.F., Bartel, N., and Rupen, M.P., 1998. “Variability of the Radio

Nucleus of the Galaxy M81,” Radio Emission from Galactic and Extragalactic Compact Sources, IAU Coll. 164, eds. J.A. Zensus, G.B. Taylor, and J.M. Wrobel, (ASP Conference Series, San Francisco), 144, 201-202.

43. Ebbers, A., Bartel, N., Bietenholz, M.F., Rupen, M.P., and Beasley, A.J., 1998. “

VLBI Astrometry of the Ultra-Compact Nucleus of M81,” Radio Emission from Galactic and Extragalactic Compact Sources, IAU Coll. 164, eds. J.A. Zensus, G.B. Taylor, and J.M. Wrobel, (ASP Conference Series, San Francisco), 144, 203-204.

44. Nunes, N.V. and Bartel, N., 1998. “Astrometry of the Planetary-System

Millisecond Pulsar B1257+12,” Radio Emission from Galactic and Extragalactic Compact Sources, IAU Coll. 164, eds. J.A. Zensus, G.B. Taylor, and J.M. Wrobel, (ASP Conference Series, San Francisco), 144, 331-332.


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45. Rupen, M.P., Beasley, A.J., Bartel, N., Bietenholz, M.F., Graham, D.A., Altunin, V.I., Jones, D.L., Conway, J.E., Venturi, T., Umana, G., and Rius, A., 1998. “VLBI Observations of Supernova 1993J: The First 1000 Days,” Radio Emission from Galactic and Extragalactic Compact Sources, IAU Coll. 164, eds. J.A. Zensus, G.B. Taylor, and J.M. Wrobel, (ASP Conference Series, San Francisco), 144, 355-356.

46. Ratner, M.I., Lebach, D.E., Shapiro, I.I., Bartel, N., Bietenholz, M.F., Ransom,

R.R., and Lestrade, J. -F., 1998. “Progress in VLBI Stellar Astrometry for the NASA/Stanford Relativity Mission (Gravity Probe B),” Radio Emission from Galactic and Extragalactic Compact Sources, IAU Coll. 164, eds. J.A. Zensus, G.B. Taylor, and J.M. Wrobel, (ASP Conference Series, San Francisco), 144, 385 – 386.

47. Bartel, N., 1998. ”Quasars, Stars, and Supernovae: Radio Astrometry with VLBI,”

Astronomia Fundamental, ed. A.H. Andrei (Revista Mexicana de Astronomia y Astrophysica), in press.

48. Popov, M. V., Kondrat'ev, V. I., Altunin, V. I., Bartel, N., Cannon, W., and

Novikov, A. Yu, 2000. “Parameters of microstructure and noiselike intensity fluctuation in pulsar radio emission measured with submicrosecond time resolution,” provided by the S2 VLBI recording/playback system IAU Colloquium 177, eds. M. Kramer, N. Wex, and R. Wielebinski (ASP Conference Series, San Francisco), 202, 179 - 180.

49. Bartel, N., Bietenholz, M. F., Cannon, W. H., Rupen, M. P., Beasley, A. J.,

Graham, D. A., Altunin, V. I., Venturi, T., Umana, G., and Conway, J. E., 2000. “A VLBI Search for a Pulsar Nebula in SN1993J in the Galaxy M81,” IAU Colloquium 177, eds. M. Kramer, N. Wex, and R. Wielebinski (ASP Conference Series, San Francisco), 202, 515-516.

50. Bartel, N. and Bietenholz, M.F., 2000. “Space-VLBI Observations of the Core-Jet

in the Nearby Galaxy M81,” Astrophysical Phenomenon Revealed by Space-VLBI, eds. H. Hirabayashi, P.G. Edwards, and D.W. Murphy (Institute of Space and Astronomical Sciences, Sagauihira, Japan), 17-20.

51. Lebach, D.E., Ransom, R.R., Ratner, M.I., Shapiro, I.I, Bartel, N., Bietenholz,

M.F., and Lestrade, J.-F, 2001. “VLBI Imaging and Astrometry of the RS CVn Binary Star IM Pegasi,” IAU Colloquium 205, eds. R.T. Schilizzi, S.N. Vogel, F. Paresce, M.S. Elvis (ASP Conference Series, San Francisco), 318-321.


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52. Bartel, N., Bietenholz, M.F., Rupen, M. P., Beasley, A.J., Graham, D.A., Altunin, V.I., Venturi, T., Umana, G., Cannon, W.H., and Conway, J.E., 2001. “The Core-Jet Radio Source in the Center of M81,” IAU Colloquium 205, eds. R.T. Schilizzi, S.N. Vogel, F. Paresce, M.S. Elvis (ASP Conference Series, San Francisco), 42-43.

53. Bietenholz, M.F., Bartel, N., Rupen, M.P., Beasley, A.J., Graham, D.A., Altunin,

V.I., Venturi, T., Umana, G., Cannon, W.H., and Conway, J.E., 2001. “SN1993J in M81,” IAU Colloquium 205, eds. R.T. Schilizzi, S.N. Vogel, F. Paresce, M.S. Elvis (ASP Conference Series, San Francisco), 380-383.

54. Bartel, N., 2003. “VLBI Astrometry,'' in Astrometry in Latin America, eds. R.

Teixera, N.V. Leister, V.A.F. Martin, P. Benevides-Soares (ADeLA Publications Series, Universidade de Sao Paulo, Instituto de Astronomia, Geofisica e Ciencias Atmosphericas) 1, 37--44.

55. Bietenholz, M.F., Bartel, N., Rupen, M.P., Beasley, A.J., Graham, D.A., Altunin,

V.I., Venturi, T., Umana, G., Cannon, W.H., and Conway, J.E., 2005. “Nine Years of VLBI Imaging of Supernova 1993J,'' IAU Colloquium 192, eds. J.M. Marcaide and K.W. Weiler (ASP Conference Series, San Francisco), p. 23 -- 28.

56. Bartel, N. and Bietenholz, M.F., 2005. “VLBI Observations of SN 1979C and SN

1986J,'' IAU Colloquium 192, eds. J.M. Marcaide and K.W. Weiler (ASP Conference Series, San Francisco), p. 105 - 109.

57. Bartel, N. and Bietenholz, M.F., 2005. “Supernova Distances with the Expanding

Shock Front Method,'' in Future Directions in High Resolution Astronomy: A Celebration of the 10th Anniversary of the VLBA, eds. J. Romney and M. Reid (ASP Conference Series, San Francisco), 340, 293 -297.

58. Ransom, R.R., Bartel, N., Bietenholz, M.F., Lebach, D.E., Ratner, M.I., Shapiro,

I.I., and Lestrade, J.-F, 2005. “VLBI Imaging and Astrometry of the Gravity Probe B Guide Star HR8703,'' in Future Directions in High Resolution Astronomy: A Celebration of the 10th Anniversary of the VLBA, eds. J. Romney and M. Reid (ASP Conference Series, San Francisco), 340, 506 - 510.

59. Lederman, J.I., Bartel, N., Bietenholz, M.F., Ransom, R.R., Lebach, D.E., Ratner,

M.I., Shapiro, I.I., and Lestrade, J.-F., 2005. “VLBI Imaging of the Extragalactic Reference Sources of the Guide Star HR8703,'' in Future Directions in High Resolution Astronomy: A Celebration of the 10th Anniversary of the VLBA, eds.


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J. Romney and M. Reid (ASP Conference Series, San Francisco), 340, 526 – 528.

60. Ransom, R.R., Lederman, J. I., Bartel, N., Bietenholz, M.F., Lebach, D.E.,

Ratner, M.I., Shapiro, I.I., 2006. “A limit on the proper motion of the “core” of the quasar 3C454.3” BAAS 38, 149.

61. Bartel, N., Ransom, R. R., Bietenholz, M.F., Lebach, D.E., Ratner, M.I., Shapiro, I.I., and Lestrade, J.-F, 2008. “VLBI astrometry for the NASA/Stanford gyroscope relativity mission Gravity Probe B.” in A Giant Step: from Milli- to Micro-arcsecond Astrometry. Proc. of the IAU, Vol 248, 190-191.

62. Bartel, N., 2009. “Supernova VLBI.” in Approaching Micro-Arcsecond Resolution with VSOP-2: Astrophysics and Technology, Astronomical Society of the Pacific, eds.: Y. Hagiwara, E. Fomalont, M. Tsuboi, and Y. Murata, 402, 243-251.

63. Bietenholz, M.F., Bartel, N., Rupen, M.P., Dwarkadas, V.V., Beasley, A.J.,

Graham, D.A., Venturi,T., Umana, G., Cannon, W., Conway, J., 2011. “Radio Imaging of SN 1993J: The Story Continues.” In Proceedings of Science, 2011arXiv1103.1783B

64. Bartel, N. 2013. “VLBI astrometry for probing astrophysics, celestial reference

frames, and general relativity.” In Memoria della Societa’ Astronomica Italiana, 83, 912.

65. Bartel, N. 2013. “Recent developments in supernova research with VLBI” IAU

Symposium 296, Supernova environmental impacts, 4 – 11 January, 2013, Raijak-on-Ganges near Kolkata, India, pp 53-57.

66. Dwarkadas, V., Bauer, F., Bietenholz, M., Bartel, N. 2014. “SN 1993J- The X-ray

Story of a Supernova Slowly Transitioning to a Remnant.” In The X-ray Universe 2014, ESA Symposium, in press.

67. Litvinov, D., Bietenholz, M., Rudenko, V., Biriukov, A., Kauts, V., Kulagin, V.,

Bartel, N., Gwinn, C., Cannon, W. 2015. “Gravitational Redshift Experiment on RadioAstron.” Cospar Symposium, Moscow, in press


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Memoranda, Other Publications 1. Johnstone, D., Di Francesco, J., Matthews, B., Bartel, N., Casassus, S.,

Chitsazzadeh, S., Duchene, G., Hales, A., Houde, M., Koch, P. M., Kothes, R., Lai, S-P., Moriarty-Schieven, G., Scott, D., Shang, H., Takakuwa, S., Wagg, J., , 2009. “The Science Case for Building a Band 1 Receiver for ALMA,” arXiv:0910.1609, 41 pages.

2. Di Francesco, J., Johnstone, D., Matthews, B. C., Bartel, N., Bronfman, L., Casassus, S., Chitsazzadeh, S., Chou, H., Cunningham, M., Duchene, G. et al. 2013, “The Science Case for building a Band 1 Receiver Suite for ALMA”, 2013arXiv1310.1604D.

IAU CIRCULARS and Astronomical Telegrams: 1. N. Bartel, M. Rupen, I. Shapiro, 1987. “Supernova 1986J in NGC 891,” IAU Circ.

No. 4292. 2. Bartel, N., Bietenholz, M., Rupen, M., Conway, J., Beasley, A., Sramek, R.,

Romney, J., Titus, M., Graham, D., Altunin, V., Jones, D., Rius, A., Venturi, T., Umana, G., Francis, R., McCall, M., Richer, M., Stevenson, C., Weiler, K., Van Dyk, S., Panagia, N., Cannon, W., Popelar, I., and Davis, R., 1993,” Supernova 1993J in NGC 3031,” IAU Circ. No. 5914.

3. Bietenholz, M. F. and Bartel, N. 2007. “Radio non-detection of SN 2006gy with

the VLA at 8.4 and 43 GHz.” Atel. No. 1254. 4. Bietenholz, M. F. and Bartel, N. 2008. “Continued Radio non-detection of SN

2006gy with the VLA at 8.4 and 43 GHz.” Atel. No. 1525. 5. Bietenholz, M. F. and Bartel, N. 2008. “Continued Radio non-detection of SN

2006gy with the VLA at 8.4 and 43 GHz.” Atel. No. 1657. 6. Bietenholz, M. F., Brunthaler, A., Bartel, N., Chomiuk, L., Rupen, <. P.,

Soderberg, A., Zauderer, B. 2011. “VLBI observations of SN 2011dh.” Atel. No. 3641.

7. Bietenholz, M. and Bartel, N. 2014. “SN 2014bc, SN 2014bi and SN 1981K not

detected in radio.” Atel. No. 6429.


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Documents

NORBERT BARTEL, Ph.D. Distinguished Research Professor2004 Alexander Novikov York University Graduate of the Lebedev Physical Institute, Moscow, Russia He worked on the search of pulsed