The Galaxy And Mass Assembly
(GAMA) survey is based around a redshift survey of a quarter of a
million galaxies. The plots below show the field locations, with
points representing galaxies that have redshifts primarily from the
Anglo-Australian Telescope 2dF/AAOmega instrument. The equatorial
fields (G09, G12, G15) are each 5x12 degrees in size and are highly
complete to 19.8 in SDSS r-band. The G02 field is based in
CFHTLS
W1, but is only highly complete above -6 degrees in declination;
the yellow contours show the boundary of the
XXL X-ray survey.
The G23 field is highly complete to 19.2 in the
VST-KIDS i-band
over about 5x10 degrees in size.
| Field | mid RA/h | RA range/deg | DEC range/deg | high completeness region | main survey limit |
| G02 | 2.3 | 30.2 to 38.8 | -10.25 to -3.72 | DEC -6.0 to -3.72 | r < 19.8 |
| G09 | 9.0 | 129.0 to 141.0 | -2.0 to +3.0 | full | r < 19.8 |
| G12 | 12.0 | 174.0 to 186.0 | -3.0 to +2.0 | full | r < 19.8 |
| G15 | 14.5 | 211.5 to 223.5 | -2.0 to +3.0 | full | r < 19.8 |
| G23 | 23.0 | 338.1 to 351.9 | -35.0 to -30.0 | RA 339.0 to 351.0 | i < 19.2 |
|
|
|
|
|
|
|
Note the galaxy counts in these plots show the total number in our catalogues, main survey and filler targets, with sufficient redshift quality. The total number of main survey galaxies is about 256000 as shown in the redshift distribution figure below.
For more details about the survey, see GAMA survey publications, in particular, the comprehensive survey paper by Liske et al. (2015).
Link: - return to my research page.