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Abstract
We describe data release 3 (DR3) of the Galaxy And Mass Assembly (GAMA)
survey. The GAMA survey is a spectroscopic redshift and multiwavelength
photometric survey in three equatorial regions each of 60.0
deg2 (G09, G12, and G15), and two southern regions of 55.7
deg2 (G02) and 50.6 deg2 (G23). DR3 consists of:
the first release of data covering the G02 region and of data on H-ATLAS
(Herschel - Astrophysical Terahertz Large Area Survey) sources in the
equatorial regions; and updates to data on sources released in DR2. DR3
includes 154 809 sources with secure redshifts across four regions. A
subset of the G02 region is 95.5 per cent redshift complete to r <
19.8 mag over an area of 19.5 deg2, with 20 086 galaxy
redshifts, that overlaps substantially with the XXL survey (X-ray) and
VIPERS (redshift survey). In the equatorial regions, the main survey has
even higher completeness (98.5 per cent), and spectra for about 75 per
cent of H-ATLAS filler targets were also obtained. This filler sample
extends spectroscopic redshifts, for probable optical counterparts to
H-ATLAS submillimetre sources, to 0.8 mag deeper (r <20.6 mag) than
the GAMA main survey. There are 25 814 galaxy redshifts for H-ATLAS
sources from the GAMA main or filler surveys. GAMA DR3 is available at
the survey website (www.gama-survey.org/dr3/).
Original language | English |
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Pages (from-to) | 3875-3888 |
Number of pages | 14 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 474 |
Issue number | 3 |
Early online date | 24 Nov 2017 |
DOIs | |
Publication status | Published - 1 Mar 2018 |
Keywords
- Catalogues
- Surveys
- Galaxies: photometry
- Galaxies: distances and redshifts
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Dive into the research topics of 'Galaxy And Mass Assembly: The G02 field, Herschel-ATLAS target selection and data release 3'. Together they form a unique fingerprint.Projects
- 1 Finished
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Research in planetary formation, astrophysics, and cosmology at Bristol
1/04/15 → 31/03/18
Project: Research