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Galaxy and Mass Assembly (GAMA) Survey Sarah Brough Sarah Brough - Australian Astronomical Observatory

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The Galaxy and Mass Assembly Survey (and little blue fuzzies)

Galaxy and Mass Assembly (GAMA) Survey

Sarah Brough

Sarah Brough - Australian Astronomical Observatory

1GAMA Team:Sarah Brough - Australian Astronomical Observatory

An r-band selected redshift survey:r < 19.8magSix regions each ~5x12 deg~1000 redshift targets per sq deg (2dFGRS~120, SDSS~70)96% complete in redshiftsTesting CDM via halo mass function, galaxy merger rates, and star formation efficiencyTotal allocation 178 nights

A multi-wavelength study of galaxies:FUV,NUV,ugrizYJHK,mid-IR,far-IR,20cm,21cm,1m (AGN, stars, gas, dust)1kpc resolution in ugrizYJHK to z 5 there is a clear tendency for GAMA groups to have smaller MFoF. most likely due to limitations in the physics included of the current GAMA lightcone mock10

Sarah Brough - Australian Astronomical Observatory

Gunawardhana et al. (2011)Varying IMF?Three independent volume limited samples Mr , z = 21, 0.29 divided into eight SFR subsamples. The IMFSFR relationship is evident in each independent volume limited sample.

= 3 (bottom track), = 2.35 (middle track) or = 2 (top track). The black lines are the evolutionary paths predicted by PEGASE11

Sarah Brough - Australian Astronomical Observatory

Baldry et al. (in prep)Steep upturn seen in stellar mass function even before we get deep VST dataStellar Mass Function(b): tted GAMA stellar M/L from Taylor et al. applied to the i-band Sersic-tted uxes, while the dotted line uses a color-based M/L (Eq. 4). The solid line shows effectively the K -band LF with and applying a constant M/L. 12First Data Release (Driver et al., MNRAS, 2011):http://gama-survey.org/~110,000 ugrizYHK photometric objects, to r#30#.$

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