S℡LAR MASSES FROM THE CANDELS SURVEY: THE GOODS-SOUTH AND UDS FIELDS
P. Santini
(1)
,
H. C. Ferguson
,
A. Fontana
(1)
,
B. Mobasher
(2)
,
G. Barro
,
M. Castellano
(1)
,
S. L. Finkelstein
,
A. Grazian
(1)
,
L. T. Hsu
,
B. Lee
,
S. -K. Lee
,
J. Pforr
(3)
,
M. Salvato
(4, 5)
,
T. Wiklind
(6)
,
S. Wuyts
(4)
,
O. Almaini
,
M. C. Cooper
,
A. Galametz
(1)
,
B. Weiner
(7)
,
R. Amorín
(1)
,
K. Boutsia
(1)
,
C. J. Conseeice
,
T. Dahlén
(8)
,
M. E. Dickinson
,
M. Giavalisco
(9)
,
N. A. Grogin
(10)
,
Y. Guo
(11)
,
N. P. Hathi
,
D. Kocevski
,
A. M. Koekemoer
(2)
,
P. Kurczynski
,
E. Merlin
(1)
,
A. Mortlock
,
J. A. Newman
,
V. Paris
,
L. Pentericci
(1)
,
R. Simons
,
S. P. Willner
(12)
1
OAR -
INAF - Osservatorio Astronomico di Roma
2 STSci - Space Telescope Science Institute
3 Institute of cosmology and gravitation
4 MPE - Max-Planck-Institut für Extraterrestrische Physik
5 Excellence Cluster Universe
6 Onsala Space Observatory
7 Steward observatory
8 Department of Astronomy
9 Department of Astronomy [Amherst]
10 University of Arizona
11 INGENIERIE - INGENIERIE
12 CfA - Harvard-Smithsonian Center for Astrophysics
2 STSci - Space Telescope Science Institute
3 Institute of cosmology and gravitation
4 MPE - Max-Planck-Institut für Extraterrestrische Physik
5 Excellence Cluster Universe
6 Onsala Space Observatory
7 Steward observatory
8 Department of Astronomy
9 Department of Astronomy [Amherst]
10 University of Arizona
11 INGENIERIE - INGENIERIE
12 CfA - Harvard-Smithsonian Center for Astrophysics
H. C. Ferguson
- Fonction : Auteur
- PersonId : 776831
- ORCID : 0000-0001-7113-2738
A. Fontana
- Fonction : Auteur
- PersonId : 755590
- ORCID : 0000-0003-3820-2823
G. Barro
- Fonction : Auteur
M. Castellano
- Fonction : Auteur
- PersonId : 755152
- ORCID : 0000-0001-9875-8263
S. L. Finkelstein
- Fonction : Auteur
- PersonId : 780391
- ORCID : 0000-0001-8519-1130
L. T. Hsu
- Fonction : Auteur
B. Lee
- Fonction : Auteur
S. -K. Lee
- Fonction : Auteur
O. Almaini
- Fonction : Auteur
M. C. Cooper
- Fonction : Auteur
C. J. Conseeice
- Fonction : Auteur
M. E. Dickinson
- Fonction : Auteur
N. P. Hathi
- Fonction : Auteur
D. Kocevski
- Fonction : Auteur
P. Kurczynski
- Fonction : Auteur
E. Merlin
- Fonction : Auteur
- PersonId : 776830
- ORCID : 0000-0001-6870-8900
A. Mortlock
- Fonction : Auteur
J. A. Newman
- Fonction : Auteur
V. Paris
- Fonction : Auteur
L. Pentericci
- Fonction : Auteur
- PersonId : 776828
- ORCID : 0000-0001-8940-6768
R. Simons
- Fonction : Auteur
Résumé
We present the public release of the stellar mass catalogs for the GOODS-S and UDS fields obtained using some of the deepest near-IR images available, achieved as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey project. We combine the effort from 10 different teams, who computed the stellar masses using the same photometry and the same redshifts. Each team adopted their preferred fitting code, assumptions, priors, and parameter grid. The combination of results using the same underlying stellar isochrones reduces the systematics associated with the fitting code and other choices. Thanks to the availability of different estimates, we can test the effect of some specific parameters and assumptions on the stellar mass estimate. The choice of the stellar isochrone library turns out to have the largest effect on the galaxy stellar mass estimates, resulting in the largest distributions around the median value (with a semi interquartile range larger than 0.1 dex). On the other hand, for most galaxies, the stellar mass estimates are relatively insensitive to the different parameterizations of the star formation history. The inclusion of nebular emission in the model spectra does not have a significant impact for the majority of galaxies (less than a factor of 2 for similar to 80% of the sample). Nevertheless, the stellar mass for the subsample of young galaxies (age \textless100 Myr), especially in particular redshift ranges (e.g., 2.2 \textless z \textless 2.4, 3.2 \textless z \textless 3.6, and 5.5 \textless z \textless 6.5), can be seriously overestimated (by up to a factor of 10 for \textless20 Myr sources) if nebular contribution is ignored.