J/ApJ/929/121 Galaxies bulge & disk data from SHARDS & HST (Costantin+, 2022)
From naked spheroids to disky galaxies: how do massive disk galaxies shape their
morphology?
Costantin L., Perez-Gonzalez P.G., Mendez-Abreu J., Huertas-Company M.,
Pampliega B.A., Balcells M., Barro G., Ceverino D., Dimauro P.,
Sanchez H.D., Espino-Briones N., Koekemoer A.M.
<Astrophys. J., 929, 121 (2022)>
=2022ApJ...929..121C 2022ApJ...929..121C
ADC_Keywords: Galaxies, spectra; Photometry, HST; Surveys; Redshifts;
Galaxies, radius; Morphology; Optical; Infrared sources
Keywords: Disk galaxies ; Galaxy classification systems ; Late-type galaxies ;
Galaxy evolution ; Galaxy photometry ; Galaxy spectroscopy ;
Spectral energy distribution ; Galaxy formation ;
Spectrophotometry ; Galaxy bulges ; Galaxy ages ; Galaxy properties
Abstract:
We investigate the assembly history of massive disk galaxies and
describe how they shape their morphology through cosmic time. Using
SHARDS and HST data, we modeled the surface brightness distribution of
91 massive galaxies at redshift 0.14<z≲1 in the wavelength range
0.5-1.6µm, deriving the uncontaminated spectral energy
distributions of their bulges and disks separately. This
spectrophotometric decomposition allows us to compare the stellar
population properties of each component in individual galaxies. We
find that the majority of massive galaxies (∼85%) build inside-out,
growing their extended stellar disk around the central spheroid. Some
bulges and disks could start forming at similar epochs, but these
bulges grow more rapidly than their disks, assembling 80% of their
mass in ∼0.7 and ∼3.5Gyr, respectively. Moreover, we infer that both
older bulges and older disks are more massive and compact than younger
stellar structures. In particular, we find that bulges display a
bimodal distribution of mass-weighted ages; i.e., they form in two
waves. In contrast, our analysis of the disk components indicates that
they form at z∼1 for both first- and second-wave bulges. This
translates to first-wave bulges taking longer to acquire a stellar
disk (5.2Gyr) compared to second-wave, less compact spheroids
(0.7Gyr). We do not find distinct properties (e.g., mass, star
formation timescale, and mass surface density) for the disks in both
types of galaxies. We conclude that the bulge mass and compactness
mainly regulate the timing of the stellar disk growth, driving the
morphological evolution of massive disk galaxies.
Description:
We combine the spectral resolution of the SHARDS observations with the
high spatial resolution of the Hubble Space Telescope (HST) Advanced
Camera for Surveys and Wide Field Camera 3 (WFC3) images. In
particular, we use seven filters for HST images from the optical to
the near-infrared wavelength range 0.475-1.600ru and the 25 filters of
SHARDS in the optical wavelength range 0.500-0.941um (see
Grogin+ 2011ApJS..197...35G 2011ApJS..197...35G ; Koekemoer+ 2011ApJS..197...36K 2011ApJS..197...36K ;
Perez-Gonzalez+ 2013, J/ApJ/762/46 and Barro+ 2019, J/ApJS/243/22 for
details). To provide a more robust constraint on the stellar mass, we
complement this data set with the K-band information at ∼2.1um
provided by the Canada-Francer-Hawaii Telescope WIRCam data
(Hsu+ 2019, J/ApJ/871/233).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 144 91 Best parameters for the sample galaxies, bulges,
and disks
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See also:
J/MNRAS/338/525 : Recent star formation in UCM gal. (Perez-Gonzalez+, 2003)
J/A+A/478/353 : Structural properties of disk galaxies (Mendez-Abreu+, 2008)
J/ApJ/675/234 : Mass functions for galaxies 0<z<4 (Perez-Gonzalez+, 2008)
J/MNRAS/428/1460 : Massive early-type galaxies (Buitrago+, 2013)
J/ApJ/762/46 : SHARDS: GOODS-N spectrophot. survey (Perez-Gonzalez+, 2013)
J/MNRAS/457/3743 : Massive quiescent galaxies SFHs (Dominguez Sanchez+, 2016)
J/ApJS/243/22 : CANDELS/SHARDS multiwavelength cat. in GOODS (Barro+, 2019)
J/MNRAS/490/417 : VANDELS massive quiescent gal. at 1.0<z<1.3 (Carnall+, 2019)
J/ApJ/871/233 : Photometric redshifts in the EGOODS-North field (Hsu+, 2019)
J/ApJ/898/171 : CLEAR. II. SFRs of quiescent gal. (Estrada-Carpenter+, 2020)
J/ApJS/247/20 : CGS. IX. R-band single-Sersic fits (Gao+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- ID [540/27488] CANDELS identifier
(Barro+ 2019, J/ApJS/243/22 ;
<[BPC2019] NNNNN> in Simbad)
7- 10 F4.2 --- (B/T)M [0.03/1] Bulge-over-total mass ratio
12- 15 F4.2 --- e_(B/T)M [0.01/0.1] Uncertainty in (B/T)M
17- 20 F4.2 kpc ReB [0.28/5.7] Effective bulge radius (1)
22- 25 F4.2 kpc e_ReB [0.03/0.7] Uncertainty in ReB
27- 31 F5.2 [Msun] log(MB) [8.7/11.4] Log bulge mass
33- 36 F4.2 [Msun] e_log(MB) [0.04/0.2] Lower uncertainty in log(MB)
38- 41 F4.2 [Msun] E_log(MB) [0.04/0.3] Upper uncertainty in log(MB)
43- 46 F4.1 Gyr AgeB [0.1/10.4] Bulge mass-weighted age
48- 50 F3.1 Gyr e_AgeB [0.1/2.4] Lower uncertainty in AgeB
52- 54 F3.1 Gyr E_AgeB [0.1/1.1] Upper uncertainty in AgeB
56- 59 F4.2 --- zformB [0.4/9.8] Bulge mass-weighted formation
redshift
61- 64 F4.2 --- e_zformB [0.01/5.3] Lower uncertainty in zformB
66- 69 F4.2 --- E_zformB [0.01/6.7] Upper uncertainty in zformB
71- 75 F5.2 [-] log(denB) [9/11.7] Log bulge surface mass density
in units of Msun/kpc1.5
77- 80 F4.2 [-] e_log(denB) [0.03/0.3] Uncertainty in log (denB)
82- 86 F5.2 kpc ReD [2.4/19] Effective disk radius (1)
88- 91 F4.2 kpc e_ReD [0.04/1] Uncertainty in ReD
93- 97 F5.2 [Msun] log(MD) [8.5/11.1] Log disk mass
99- 102 F4.2 [Msun] e_log(MD) [0.04/0.2] Lower uncertainty in log(MD)
104- 107 F4.2 [Msun] E_log(MD) [0.04/0.2] Upper uncertainty in log(MD)
109- 111 F3.1 Gyr AgeD [0.1/5.5] Disk mass-weighted age
113- 115 F3.1 Gyr e_AgeD [0.1/1.1] Lower uncertainty in AgeD
117- 119 F3.1 Gyr E_AgeD [0.1/0.7] Upper uncertainty in AgeD
121- 124 F4.2 --- zformD [0.19/3.2] Disk mass-weighted formation
redshift
126- 129 F4.2 --- e_zformD [0.01/0.7] Lower uncertainty in zformD
131- 134 F4.2 --- E_zformD [0.01/0.9] Upper uncertainty in zformD
136- 139 F4.2 [-] log(denD) [7/10] Log disk surface mass density;
in units of Msun/kpc1.5
141- 144 F4.2 [-] e_log(denD) [0.01/0.1] Uncertainty in log (denD)
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Note (1): at 1.6 microns (Costantin+ 2021ApJ...913..125C 2021ApJ...913..125C).
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History:
From electronic version of the journal
References:
Costantin et al. Paper I. 2021ApJ...913..125C 2021ApJ...913..125C
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 07-Mar-2024