J/ApJ/835/254 GLASS. IX. Structural param. from HFF & GLASS (Morishita+, 2017)
The Grism Lens-Amplified Survey from Space (GLASS).
IX. The dual origin of low-mass cluster galaxies as revealed by new structural
analyses.
Morishita T., Abramson L.E., Treu T., Vulcani B., Schmidt K.B.,
Dressler A., Poggianti B.M., Malkan M.A., Wang X., Huang K.-H., Trenti M.,
Bradac M., Hoag A.
<Astrophys. J., 835, 254-254 (2017)>
=2017ApJ...835..254M 2017ApJ...835..254M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Galaxies, spectra ; Photometry, HST ;
Redshifts ; Morphology ; Surveys
Keywords: galaxies: clusters: general; galaxies: elliptical and lenticular, cD
galaxies: evolution; galaxies: structure
Abstract:
Using deep Hubble Frontier Fields imaging and slitless spectroscopy
from the Grism Survey from Space, we study 2200 cluster and 1748 field
galaxies at 0.2≤z≤0.7 to determine the impact of environment on
galaxy size and structure at stellar masses logM*/M☉>7.8, an
unprecedented limit at these redshifts. Based on simple
assumptions-re=f(M*)-we find no significant differences in
half-light radii (re) between equal-mass cluster or field systems.
More complex analyses --re=f(M*,U-V,n,z,Σ)-- reveal local
density (Σ) to induce only a 7%±3% (95% confidence) reduction
in re beyond what can be accounted for by U-V color, Sersic index
(n), and redshift (z) effects. Almost any size difference between
galaxies in high- and low-density regions is thus attributable to
their different distributions in properties other than environment.
Indeed, we find a clear color-re correlation in low-mass passive
cluster galaxies (logM*/M☉<9.8) such that bluer systems have
larger radii, with the bluest having sizes consistent with equal-mass
star-forming galaxies. We take this as evidence that large-re
low-mass passive cluster galaxies are recently acquired systems that
have been environmentally quenched without significant structural
transformation (e.g., by ram pressure stripping or starvation).
Conversely, ∼20% of small-re low-mass passive cluster galaxies
appear to have been in place since z≳3. Given the consistency of the
small-re galaxies' stellar surface densities (and even colors) with
those of systems more than ten times as massive, our findings suggest
that clusters mark places where galaxy evolution is accelerated for an
ancient base population spanning most masses, with late-time additions
quenched by environment-specific mechanisms mainly restricted to the
lowest masses.
Description:
We base our analysis on Hubble Frontier Fields (HFF; Lotz+
2017ApJ...837...97L 2017ApJ...837...97L) imaging and Grism Survey from Space (GLASS;
Schmidt+ 2014ApJ...782L..36S 2014ApJ...782L..36S; Treu+, 2015, J/ApJ/812/114) HST
spectroscopy for the first four HFF clusters with complete data:
Abell2744 (z=0.308), MACS0416 (0.396), MACS0717 (0.548), and MACS1149
(0.544). HFF imaging spans ACS F435/606/814W through WFC3IR
F105/125/140/160W filters (seven bands).
Our final catalog consists of 3948 galaxies, with 2200 in clusters and
1748 in field environments. A total of 298 have ground-based and 168
have GLASS spectroscopic redshifts.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 140 4309 Source and structural catalog
--------------------------------------------------------------------------------
See also:
J/ApJ/591/53 : I photometry of Cl 0024+16 (Treu+, 2003)
J/ApJ/621/673 : Line indices for 124 early-type galaxies (Thomas+, 2005)
J/ApJS/164/334 : ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)
J/ApJ/690/1236 : COSMOS photometric redshift catalog (Ilbert+, 2009)
J/MNRAS/413/813 : ATLAS3D project. I. (Cappellari+, 2011)
J/ApJ/739/L44 : Structural data for 0.2<z<2.7 galaxies (Damjanov+, 2011)
J/MNRAS/414/3699 : Study of hot stellar systems and galaxies (Misgeld+, 2011)
J/ApJ/728/27 : Chandra & AAOmega observations of Abell 2744 (Owers+, 2011)
J/ApJ/750/93 : NIR observations of XMM-LSS J02182-05102 (Papovich+, 2012)
J/ApJ/779/102 : Metallicities of RGB stars in dwarf galaxies (Kirby+, 2013)
J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)
J/MNRAS/440/843 : SIM2D parameters of SDSS-DR7 galaxies (Omand+, 2014)
J/MNRAS/446/1567 : SAMI Galaxy Survey: EDR (Allen+, 2015)
J/MNRAS/448/3484 : ATLAS3D Project. XXX (McDermid+, 2015)
J/MNRAS/453/1136 : XDF CHEF photometric catalogue (Jimenez-Teja+, 2015)
J/ApJ/812/114 : Grism Lens-Amplified Survey from Space (GLASS). I.
(Treu+, 2015)
J/ApJ/811/29 : GLASS. IV. Lensing cluster Abell 2744 (Wang+, 2015)
J/ApJS/224/33 : CLASH-VLT: the FF cluster MACSJ0416.1-2403 (Balestra+, 2016)
J/AJ/151/78 : Jellyfish galaxy cand. in galaxy clusters (Poggianti+, 2016)
J/ApJ/822/78 : VLT/MUSE spectrosc. obs. of MACSJ1149.5+2223 (Grillo+, 2016)
J/ApJ/831/182 : GLASS. VI. MCSJ0416.1-2403 HFF imaging+spectra (Hoag+, 2016)
J/ApJ/833/178 : GLASS. VII. Hα maps (Vulcani+, 2016)
J/ApJS/224/33 : CLASH-VLT: the FF cluster MACSJ0416.1-2403 (Balestra+, 2016)
J/A+A/590/A31 : ASTRODEEP Frontier Fields Catalogues (Merlin+, 2016)
J/A+A/597/A41 : ALMA Frontier Fields Survey. I. (Gonzalez-Lopez+, 2017)
J/A+A/600/A90 : MACS J0416.1-2403 redshift catalogue (Caminha+, 2017)
http://glass.astro.ucla.edu/ : GLASS home page
http://www.stsci.edu/hst/campaigns/frontier-fields/FF-Data : FF HST data
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Seq [1/99] Galaxy cluster number (1)
4- 7 I4 --- Gal [21/5546] Galaxy ID
9- 19 F11.7 deg RAdeg Right ascension (J2000)
21- 31 F11.7 deg DEdeg Declination (J2000)
33- 36 F4.2 --- z [0.2/0.7] The best redshift (2)
38- 43 F6.3 mag mag [16.7/27] HST/WFC3 F160W total AB magnitude (3)
45- 50 F6.4 mag e_mag [0.0001/2] Error in total magnitude
52- 56 F5.2 Msun logM* [6/12] Stellar mass derived by FAST
59- 63 F5.3 Msun e_logM* [0.01/0.6] Error in stellar mass
65- 72 F8.4 kpc logae [-1/2]?=-99 Effective radius along major axis
in log
74- 80 F7.4 kpc e_logae [0.0001/92]?=99 Error in logae
82- 88 F7.4 --- logn [-1/1] Sersic index in log
90- 96 F7.4 --- e_logn [0.0005/99] Error in logn
98-105 F8.4 --- logq [-1/0]?=-99 Axis ratio in log
107-115 F9.4 --- e_logq [0.004/7563]?=99 Error in logq
117 I1 --- F [0/3] Flag for GALFIT visual inspection
(0=Fine, 1=Poor/contaminated,
2=Point source) (4)
120-124 F5.3 mag U-V [0.2/2.3] Rest-frame U-V color index
126-131 F6.3 mag V-J [-0.1/2.3] Rest-frame V-J color index
133-140 F8.3 Mpc-2 Sig5 [0.4/1720] Fifth-closest local galaxy
number density (Σ5th)
--------------------------------------------------------------------------------
Note (1): ID as follows:
1 = Abell2744CLS (z=0.308),
2 = MACS0416CLS (MCS J0416.1-2403 in Simbad; z=0.396)
3 = MACS0717CLS (MCS J0717.5+3745 in Simbad; z=0.548)
4 = MACS1149CLS (MCS J1149.5+2223 in Simbad; z=0.544)
5 = Abell2744PR1,
6 = MACS0416PR1,
7 = MACS0717PR1,
8 = MACS1149PR1,
99 = the eXtreme Deep Field (XDF; Illingworth+ 2013ApJS..209....6I 2013ApJS..209....6I).
Both Hubble Frontier Fields (HFF) and Grism Survey from Space (GLASS)
programs use a parallel strategy where HST WFC3IR and ACS are exposed
simultaneously so that the former falls on the cluster core ("CLS")
and the latter on a low-density infall/field region ("PR1").
Note (2): zbest is ground-based spectroscopic redshift (from
Owers+, 2011, J/ApJ/728/27; Ebeling+, 2014ApJ...781L..40E 2014ApJ...781L..40E;
Balestra+, 2015, J/ApJS/224/33) if available,
implemented with GLASS grism redshift, and
seven-band photometric-redshift derived by EAZY for else.
All PR1 redshifts are photometric (see Section 2.3).
Note (3): F160W-band Auto magnitude derived by SExtractor.
Note (4): Visual inspection flag for sources 2σ above/below the size-mass
relation for each population.
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Treu et al. Paper I. 2015ApJ...812..114T 2015ApJ...812..114T Cat. J/ApJ/812/114
Jones et al. Paper II. 2015AJ....149..107J 2015AJ....149..107J
Schmidt et al. Paper III. 2016ApJ...818...38S 2016ApJ...818...38S
Wang et al. Paper IV. 2015ApJ...811...29W 2015ApJ...811...29W Cat. J/ApJ/811/29
Vulcani et al. Paper V. 2015ApJ...814..161V 2015ApJ...814..161V
Hoag et al. Paper VI. 2016ApJ...831..182H 2016ApJ...831..182H Cat. J/ApJ/831/182
Vulcani et al. Paper VII. 2016ApJ...833..178V 2016ApJ...833..178V Cat. J/ApJ/833/178
Vulcani et al. Paper VIII. 2017ApJ...837..126V 2017ApJ...837..126V
Morishita et al. Paper IX. 2017ApJ...835..254M 2017ApJ...835..254M This catalog.
Wang et al. Paper X. 2017ApJ...837...89W 2017ApJ...837...89W
Schmidt et al. Paper XI. 2017ApJ...839...17S 2017ApJ...839...17S
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 04-Sep-2017