GAMA: a new galaxy survey

Details GAMA: a new galaxy survey GAMA: a new galaxy survey

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..245...83b&link_type=abstract

Formation and Evolution of Galaxy Bulges, Proceedings of the International Astronomical Union, IAU Symposium, Volume 245, p. 83-

Astronomy and Astrophysics

Astronomy

1

Surveys, Galaxies: Bulges, Galaxies: Dwarf, Galaxies: Evolution, Galaxies: Fundamental Parameters, Galaxies: Luminosity Function, Mass Function, Galaxies: Stellar Content, Dark Matter

Scientific paper

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 1012M&sun; and its evolution to z ~ 0.4; (2) measuring the galaxy stellar mass function to very low mass limits of 107M&sun; 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.

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