J/ApJ/775/106 CANDELS passive and massive early-type galaxies (Cassata+, 2013)
Constraining the assembly of normal and compact passively evolving galaxies
from redshift z = 3 to the present with CANDELS.
Cassata P., Giavalisco M., Williams C.C., Guo Y., Lee B., Renzini A.,
Ferguson H., Faber S.F., Barro G., McIntosh D.H., Lu Y., Bell E.F.,
Koo D.C., Papovich C.J., Ryan R.E., Conselice C.J., Grogin N.,
Koekemoer A., Hathi N.P.
<Astrophys. J., 775, 106 (2013)>
=2013ApJ...775..106C 2013ApJ...775..106C
ADC_Keywords: Galaxies, IR ; Galaxies, optical ; Morphology ; Redshifts ;
Surveys
Keywords: cosmology: observations; galaxies: evolution;
galaxies: fundamental parameters
Abstract:
We study the evolution of the number density, as a function of the
size, of passive early-type galaxies (ETGs) with a wide range of
stellar masses (1010M☉<M*≲1011.5M☉) from z∼3 to
z∼1, exploiting the unique data set available in the GOODS-South
field, including the recently obtained WFC3 images as part of the
Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
(CANDELS). In particular, we select a sample of ∼107 massive
(M*>1010M☉), passive (SSFR<10-2/Gyr), and morphologically
spheroidal galaxies at 1.2<z<3, taking advantage of the panchromatic
data set available for GOODS, including VLT, CFHT, Spitzer, Chandra,
and HST ACS+WFC3 data. We find that at 1<z<3 the passively evolving
ETGs are the reddest and most massive objects in the universe, and we
prove that a correlation between mass, morphology, color, and star
formation activity is already in place at that epoch. We measure a
significant evolution in the mass-size relation of passive ETGs from
z∼3 to z∼1, with galaxies growing on average by a factor of two in
size in a 3Gyr timescale only. We also witness an increase in the
number density of passive ETGs of 50 times over the same time
interval. We find that the first ETGs to form at z≳2 are all compact
or ultra-compact, while normal-sized ETGs (meaning ETGs with sizes
comparable to those of local counterparts of the same mass) are the
most common ETGs only at z<1. The increase of the average size of ETGs
at 0<z<1 is primarily driven by the appearance of new large ETGs
rather than by the size increase of individual galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 66 107 The Sample of 1.2<z<3 early-type galaxies (ETGs)
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See also:
II/261 : GOODS initial results (Giavalisco+, 2004)
J/ApJS/207/24 : GOODS-S CANDELS multiwavelength catalog (Guo+, 2013)
J/ApJS/206/10 : CANDELS multiwavelength catalog (Galametz+, 2013)
J/A+A/556/A55 : Multi-color phot. of star-forming galaxies (Ilbert+, 2013)
J/ApJ/769/80 : Spitzer/IRAC observations of five deep fields (Ashby+, 2013)
J/ApJ/762/77 : PM2GC mass-limited sample surface phot. (Poggianti+, 2013)
J/A+A/549/A63 : GMASS photometry (Kurk+, 2013)
J/ApJ/758/129 : 4Ms Chandra Deep Field South 6-8keV galaxies (Xue+, 2012)
J/MNRAS/427/1666 : Massive galaxies in CANDELS-UDS field (Bruce+, 2012)
J/ApJS/203/24 : Galaxy structural param. in CANDELS (van der Wel+, 2012)
J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)
J/ApJ/742/3 : Photometric catalogs for ECDF-S and CDF-N (Rafferty+, 2011)
J/ApJ/739/L44 : Structural data for gal. between 0.2<z<2.7 (Damjanov+, 2011)
J/ApJ/727/1 : IRAC/MUSYC SIMPLE survey (Damen+, 2011)
J/ApJ/735/86 : NEWFIRM MBS: photometric catalogs (Whitaker+, 2011)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-S field (Balestra+, 2010)
J/A+A/511/A50 : JHks of GOODS-South field (Retzlaff+, 2010)
J/ApJ/706/1364 : SINS survey of high-redshift gal. (Forster Schreiber+, 2009)
J/ApJ/697/1369 : GOODS Ks-selected multiwavelength compil. (Bundy+, 2009)
J/A+A/478/83 : GOODS-S Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)
J/MNRAS/382/109 : Massive galaxies in Extended Groth Strip (Trujillo+, 2007)
J/ApJ/666/863 : GOODS MIPS early-type galaxies (Van Der Wel+, 2007)
J/A+A/434/53 : GOODS-South Field redshifts (Vanzella+, 2005)
J/A+A/428/1043 : Redshifts from VIMOS VLT Deep Survey (Le Fevre+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/107] Running sequence number
5- 14 F10.7 deg RAdeg Right ascension in decimal degrees (J2000)
16- 26 F11.7 deg DEdeg Declination in decimal degrees (J2000)
28- 32 F5.3 --- z [1.2/2.8] Redshift
33 A1 --- f_z [*] *: Spectroscopic redshift from literature
35- 39 F5.2 [Msun] logM* [10/11.5] Stellar mass
41- 46 F6.2 [Gyr-1] logSSFR [-11.7/-2.1] Specific star formation rate
48- 51 F4.2 --- n [0.9/7.5] Sersic index
53- 56 F4.2 --- e_n [0/1.9] n uncertainty
58- 61 F4.2 kpc Re [0.1/7.9] Circularized effective radius
63- 66 F4.2 kpc e_Re [0.03/1.6] Re uncertainty
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 17-Mar-2015