J/MNRAS/513/439 GAMA DR4 spectrum catalog (Driver+, 2022)
Galaxy And Mass Assembly (GAMA) Data Release 4 and the z < 0.1 total and
z < 0.08 morphological galaxy stellar mass functions.
Driver S.P., Bellstedt S., Robotham A.S.G., Baldry I.K., Davies L.J.,
Liske J., Obreschkow D., Taylor E.N., Wright A.H., Alpaslan M.,
Bamford S.P., Bauer A.E., Bland-Hawthorn J., Bilicki M., Bravo M.,
Brough S., Casura S., Cluver M.E., Colless M., Conselice C.J., Croom S.M.,
De Jong J., D'Eugenio F., De Propris R., Dogruel B., Drinkwater M.J.,
Dvornik A., Farrow D.J., Frenk C.S., Giblin B., Graham A.W., Grootes M.W.,
Gunawardhana M.L.P., Hashemizadeh A., Haussler B., Heymans C.,
Hildebrandt H., Holwerda B.W., Hopkins A.M., Jarrett T.H., Heath Jones D.,
Kelvin L.S., Koushan S., Kuijken K., Lara-Lopez M.A., Lange R.,
Lopez-Sanchez A.R., Loveday J., Mahajan S., Meyer M., Moffett A.J.,
Napolitano N.R., Norberg P., Owers M.S., Radovich M., Raouf M.,
Peacock J.A., Phillipps S., Pimbblet K.A., Popescu C., Said K.,
Sansom A.E., Seibert M., Sutherland W.J., Thorne J.E., Tuffs R.J.,
Turner R., van der Wel A., van Kampen E., Wilkins S.M.
<Mon. Not. R. Astron. Soc., 513, 439-467 (2022)>
=2022MNRAS.513..439D 2022MNRAS.513..439D (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Galaxy catalogs ; Redshifts ; Photometry, SDSS ;
Photometry, infrared ; Ultraviolet ; Positional data ;
Spectroscopy ; Galaxies, spectra ; Line Profiles
Keywords: catalogues - surveys - galaxies: distances and redshift -
galaxies: fundamental parameters -
galaxies: luminosity function, mass function - cosmological parameters
Abstract:
In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make
available our full spectroscopic redshift sample. This includes 248682
galaxy spectra, and, in combination with earlier surveys, results in
330542 redshifts across five sky regions covering ∼250 deg2. The
redshift density, is the highest available over such a sustained area,
has exceptionally high completeness (95 per cent to rKiDS = 19.65
mag), and is well-suited for the study of galaxy mergers, galaxy
groups, and the low redshift (z < 0.25) galaxy population. DR4
includes 32 value-added tables or Data Management Units (DMUs) that
provide a number of measured and derived data products including
GALEX, ESO KiDS, ESO VIKING, WISE, and HerschelSpace Observatory
imaging. Within this release, we provide visual morphologies for 15330
galaxies to z < 0.08, photometric redshift estimates for all 18
million objects to rKiDS ∼25 mag, and stellar velocity dispersions
for 111830 galaxies. We conclude by deriving the total galaxy stellar
mass function (GSMF) and its sub-division by morphological class
(elliptical, compact-bulge and disc, diffuse-bulge and disc, and disc
only). This extends our previous measurement of the total GSMF down to
106.75 M☉ h70-2 and we find a total stellar mass density
of ρ* = (2.97 ± 0.04) * 108 M_☉ h70 Mpc-3 or
Omega* = (2.17 ± 0.03) * 10-3 h70-1. We conclude that at
z < 0.1, the Universe has converted 4.9 ± 0.1 per cent of the
baryonic mass implied by big bang Nucleosynthesis into stars that are
gravitationally bound within the galaxy population.
Description:
The fourth GAMA data release (DR4) provides AAT/AAOmega spectra and
its properties, also spectra from related galaxy catalogues as SDSS,
2dFGRS, 6dFGS or WiggleZ. The table AATSpecAll contains one line for
each GAMA AAT spectrum, listing a number of properties of the
spectrum. This table provides both the Autoz redshift and the best
runz redshift, where the former is generally to be preferred over the
latter. If a spectrum was used in one of the combined spectra listed
in AATSpecAutozComb then the redshift measured from this combined
spectrum is also provided. Note that duplicate observations of the
same objects are retained in this table. The table LTSpecAll lists a
small number of spectra of fibre-bright targets collected by the GAMA
team at the Liverpool Telescope (LT; see the LTObs DMU).
The table SpecAll (gamadr4.dat) combines the tables AATSpecAll and
LTSpecAll above with the tables ExternalSpecAll and ExternalzAll from
the ExternalSpec DMU, thus providing a complete list of all spectra
and redshifts that are available in the GAMA survey regions, including
GAMA spectra and those from previous spectroscopic surveys (such as
the SDSS).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
gamadr4.dat 402 522558 SpecAll table of GAMA-DR4 spectrum catalog
--------------------------------------------------------------------------------
See also:
J/MNRAS/474/3875 : Galaxy And Mass Assembly (GAMA): DR3 (Baldry+, 2018)
J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA): DR1 (Driver+, 2011)
J/MNRAS/452/2087 : Galaxy And Mass Assembly (GAMA): DR2 (Liske+, 2015)
VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS)
(2dFGRS Team, 1998-2003)
J/MNRAS/474/4151 : WiggleZ Dark Energy Survey final DR (Drinkwater+, 2018)
VII/292 : DESI Legacy Imaging Surveys DR8 photometric redshifts
(Duncan, 2022)
VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q)
(Lyke+, 2020)
II/347 : KiDS-ESO-DR3 multi-band source catalog (de Jong+, 2017)
II/343 : VIKING catalogue data release 2 (Edge+, 2016)
https://www.gama-survey.org/dr4/ : GAMA-DR4 Home Page
Byte-by-byte Description of file: gamadr4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 33 A33 --- spectID ID of GAMA AAT spectrum (SPECID)
35- 43 A9 --- Survey Survey catalogue (SURVEY)
45- 46 I2 --- SCode [1/13] Survey code (SURVEY_CODE) (1)
48- 56 F9.5 deg RAdeg Right ascension (J2000) (RA)
58- 66 F9.5 deg DEdeg Declination (J2000) (DE)
68- 74 F7.2 0.1nm Wmin [0.00/5838.48] Minimum wavelength of
spectrum (WMIN)
76- 83 F8.2 0.1nm Wmax [0.00/11546.39] Maximum wavelength of
spectrum (WMAX)
85- 93 F9.6 --- z [-9.999090/9.999900] Heliocentric redshift (Z)
95 I1 --- q_z [1/5] Normalised redshift quality NQ>2 for
science (NQ) (2)
97-104 F8.6 --- Prob [0/1] Probability that redshift is
correct (PROB)
106-172 A67 --- FileName Spectrum filename (FILENAME)
174-261 A88 --- URL Spectrum URL (URL)
263-354 A92 --- URLimg Image URL (URL_IMG)
356-363 I8 --- CataId [-1/9100131] ID of matched GAMA object
where 74869 CataId are not available (CATAID)
365-387 A23 --- GAMA Name of matched GAMA object as
(GAMAJHHMMSS.ss+DDMMSS.s) (GAMA_NAME)
389-393 I5 --- ICflag [0/16416] Catalogue sources of matched GAMA
object (IC_FLAG)
395-398 F4.2 arcsec Dist [0.00/2.00] Distance between spectrum and
matched GAMA object (DIST)
400 I1 --- IsSBest [0/1] GAMA AAT spectrum with best redshift
for this object ? (IS_SBEST)
402 I1 --- IsBest [0/1] Best flag (IS_BEST)
-------------------------------------------------------------------------------
Note (1): Survey code corresponds to catalogue as follows:
1 = SDSS, 102160 sources/spectra in our sample
2 = 2dFGRS, 31300 sources/spectra in our sample
3 = MGC, 4551 sources/spectra in our sample
4 = 2SLAQ-LRG, 3150 sources/spectra in our sample
5 = GAMA AAT, 321465 sources/spectra in our sample
6 = 6dFGS, 1894 sources/spectra in our sample
7 = UZC, 377 sources/spectra in our sample
8 = 2QZ, 12053 sources/spectra in our sample
9 = 2SLAQ-QSO, 3603 sources/spectra in our sample
10 = NED, 5 sources/spectra in our sample
11 = GAMA LT Liverpool Telescope, 20 sources/spectra in our sample
12 = WiggleZ, 29499 sources/spectra in our sample
13 = VVDS, 12481 sources/spectra in our sample
Note (2): The normalised redshift quality are made as follows:
1 = Very Poor Quality, redshift measurement is highly uncertain or
unreliable often associated with noisy spectra, low (S/N), or
data with significant contamination, 24145 spectra in our sample
2 = Low Quality, redshift is tentative and has low confidence,
spectra with weak or ambiguous features, should be exercised when
using these measurements, and they may require independent
confirmation, 37421 spectra in our sample
3 = Moderate Quality, redshift has reasonable confidence, based on
identifiable spectral features like emission or absorption line,
suitable for scientific use, especially in cases where other
corroborating data (e.g., photometric redshifts) support the
measurement, 67785 spectra in our sample
4 = High Quality, redshift is highly reliable and based on clear,
well-detected spectral features, these measurements are suitable
for robust scientific analyses, including studies of galaxy
properties and clustering, 341650 spectra in our sample
5 = Very High Quality, redshift is virtually certain, often from high
signal-to-noise spectra with multiple well-detected features,
these are the most trusted measurements and form the backbone of
high-precision analyses, 51557 spectra in our sample
-------------------------------------------------------------------------------
History:
Copied from https://www.gama-survey.org/dr4/schema/table.php?id=466
(End) Luc Trabelsi [CDS] 21-Nov-2024