GAMA巡天概述
Overview of GAMA survey
The Galaxy And Mass Assembly Survey (GAMA) began in 2008 with the goal of building upon the legacy of the original 2dFGRS and SDSS surveys to produce a highly complete redshift survey with maximal multiwavelength data (xray-to-radio via eROSITA, GALEX, VST, VISTA, WISE, Herschel, SKAP, and MWA). GAMA covers five fields with highly complete spectroscopic coverage (>95%) to intermediate depths (r< 19.8), and collectively spans 250 deg2 of equatorial or southern sky. The survey was carried out using the AAOmega multi-object spectrograph on the Anglo-Australian Telescope (AAT). On the imaging side, complementary imaging extends from the UV to the far-IR, with 20-band photometry extending from 0.2–500 μm.
In this talk, I will firstly briefly introduce the history and data release of GAMA survey. Then, I will review some of the survey science results, especially those on galaxy groups, and the low-redshift Universe. As CSST is expected to be deeper and wider than GAMA, these science results on GAMA can give us a hint of what we could achieve with CSST.
