GAMA: a new galaxy survey

I. Baldry; J. Liske; S. P. Driver; the GAMA Team

doi:10.1017/S1743921308017365

GAMA: a new galaxy survey

Published online by Cambridge University Press: 01 July 2007

I. Baldry ,

J. Liske and

S. P. Driver

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I. Baldry: Affiliation:
Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD, UK
J. Liske: Affiliation:
European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany
S. P. Driver: Affiliation:
SUPA, School of Physics & Astronomy, University of St Andrews, St Andrews KY16 9SS, UK

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Abstract

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Abstract

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The case is outlined for a new galaxy survey, including spectroscopy with AAOmega and sub-arcsecond multi-band imaging, that bridges a crucial gap between the SDSS and VVDS surveys. The science focus is to study structure and the relationship between matter and light on kpc-to-Mpc scales. The range of scales probed will enable direct constraints on the Cold Dark Matter model by: (1) measuring the halo mass function down to and its evolution to z ~ 0.4; (2) measuring the galaxy stellar mass function to very low mass limits of constraining baryonic feedback processes; and (3) quantifying the environment-dependent merger rate since z ~ 0.4. Here, we highlight the fact that the high-resolution imaging will enable the bulge-disk decomposition of ~200000 galaxies in u–K, providing a valuable resource for statistical studies of bulge properties.