J/ApJ/925/34 The COSMOS-DASH morphological catalog (Cutler+, 2022)
Diagnosing DASH: a catalog of structural properties for the COSMOS-DASH survey.
Cutler S.E., Whitaker K.E., Mowla L.A., Brammer G.B., van der Wel A.,
Marchesini D., van Dokkum P.G., Momcheva I.G., Song M., Akhshik M.,
Nelson E.J., Bezanson R., Franx M., Kriek M., Lange-Vagle D., Leja J.,
MacKenty J.W., Muzzin A., Shipley H.
<Astrophys. J., 925, 34 (2022)>
=2022ApJ...925...34C 2022ApJ...925...34C
ADC_Keywords: Galaxies, IR; Photometry, HST; Morphology; Galaxies, radius;
Galaxy catalogs
Keywords: Galaxy evolution ; Sky surveys ; Catalogs
Abstract:
We present the H160 morphological catalogs for the COSMOS-DASH
survey, the largest area near-IR survey using HST-WFC3 to date.
Utilizing the "Drift And SHift" observing technique for HST-WFC3
imaging, the COSMOS-DASH survey imaged approximately 0.5deg2 of the
UltraVISTA deep stripes (0.7deg2, when combined with archival data).
Global structural parameters are measured for 51586 galaxies within
COSMOS-DASH using GALFIT (excluding the CANDELS area) with detection
using a deep multi-band HST image. We recover consistent results with
those from the deeper 3D-HST morphological catalogs, finding that, in
general, sizes and Sersic indices of typical galaxies are accurate to
limiting magnitudes of H160<23 and H160<22 ABmag, respectively. In
size-mass parameter space, galaxies in COSMOS-DASH demonstrate robust
morphological measurements out to z∼2 and down to log(M*/M☉)∼9.
With the advantage of the larger area of COSMOS-DASH, we measure a
flattening of the quiescent size-mass relation below
log(M*/M☉)∼10.5 that persists out to z∼2. We show that
environment is not the primary driver of this flattening, at least out
to z=1.2, whereas internal physical processes may instead govern the
structural evolution.
Description:
The Cycle 23 COSMOS-DASH program (Program ID: GO-14114) is a
0.49deg2 survey of the COSMOS field using the HST-WFC3 F160W filter.
It consists of 456 pointings in 57 orbits (8 pointings per orbit)
obtained between 2016 November and 2017 June using the Drift And SHift
(DASH; Mowla+ 2019ApJ...880...57M 2019ApJ...880...57M) technique.
The data set additionally includes all available archival F160W data
in COSMOS, including CANDELS, resulting in a total F160W area of
0.66deg-2. We use an updated, redrizzled mosaic (containing more
archival data) that has a pixel scale of 0.1"/pix (see Figure 1).
Of the 262,615 objects identified in the UVISTA catalogs of
Muzzin+ 2013 (J/ApJS/206/8), 51586 have coverage with the COSMOS-DASH
F160W observations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
morphcat.dat 263 262615 Morphological catalog of galaxies, derived from
the version 1.3 mosaic --updated by the author
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
II/373 : The fourth UltraVISTA data release (DR4) (Moneti+, 2019)
J/ApJS/172/615 : GALFIT result for GEMS galaxies (Haussler+, 2007)
J/ApJ/735/86 : NEWFIRM MBS: photometric catalogs (Whitaker+, 2011)
J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)
J/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)
J/MNRAS/434/325 : AMIGA galaxies physical parameters (Fernandez Lorenzo+ 2013)
J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)
J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)
J/MNRAS/443/1151 : AIMSS Project. I. Compact Stellar Systems (Norris+, 2014)
J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)
J/ApJ/805/121 : Overdensities of 0<z<3 COSMOS galaxies (Darvish+, 2015)
J/ApJS/219/15 : Morphologies of z=0-10 galaxies with HST (Shibuya+, 2015)
J/ApJS/225/27 : 3D-HST Survey: grism spectra master cat. (Momcheva+, 2016)
J/ApJ/837/16 : Cosmic web of galaxies in the COSMOS field (Darvish+, 2017)
J/ApJ/877/103 : Half-mass radii for galaxies at 1.0≤z≤2.5 (Suess+, 2019)
J/MNRAS/506/928 : Stellar mass-size relation for low M* gal. (Nedkova+, 2021)
Byte-by-byte Description of file: morphcat.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- [MMS2013] [1/262615] Object identifier from UVISTA
catalog of Muzzin+ 2013, J/ApJS/206/8 (ID)
8- 16 F9.5 deg RAdeg [149.3/151] Right ascension (J2000)
18- 26 F9.7 deg DEdeg [1.6/3] Declination (J2000)
28 I1 --- Flag [0/4] GALFIT flag (0=Good) (1)
30 I1 --- Use [0/1] General use flag (2)
32- 41 F10.6 mag mag [12.5/29.2]?=-99 GALFIT best-fit magnitude
43- 52 F10.6 mag e_mag [0.0003/1.8]?=-99 Uncertainty in GALFIT
magnitude (see Section 3.5) (dmag)
54- 63 F10.6 arcsec re [0.03/40]?=-99 GALFIT best-fit effective
(half-light) radius
65- 74 F10.6 arcsec e_re [0.0002/7]?=-99 Uncertainty in re (dre)
76- 85 F10.6 --- n [0.2/6]?=-99 GALFIT best-fit Sersic index
87- 96 F10.6 --- e_n [0.001/12]?=-99 Uncertainty in n (dn)
98-107 F10.6 --- q [0/1]?=-99 GALFIT best-fit axis ratio
109-118 F10.6 --- e_q [0.0002/1.2]?=-99 Uncertainty in q (dq)
120-129 F10.6 deg PA [-90/90]?=-99 GALFIT best-fit
position angle
131-140 F10.6 deg e_PA [0.01/133]?=-99 Uncertainty in PA (dpa)
142-151 F10.6 arcsec KRad [0/22.6]?=-99 Kron radius from SExtractor (kron)
153-164 F12.6 --- F160W [0.04/96430]?=-99 F160W AUTO flux (SExtractor
measured, within Kron radius); ZP=25
(fF160Wauto)
166-175 F10.6 --- e_F160W [0.03/128]?=-99 Error in F160W AUTO flux; ZP=25
(eF160Wauto)
177-188 F12.6 --- F160Wt [0.2/96430]?=-99 F160W total flux (scaled from
AUTO flux); ZP=25 (fF160Wtot)
190-199 F10.6 --- e_F160Wt [0.04/128]?=-99 Error in F160Wt (eF160Wtot)
201-211 F11.6 --- SNR [0.39/8856]?=-99 Total scaled signal to noise
ratio (F160Wt/e_F160Wt)
213 I1 --- f_re [0/1] Parameter robustness flag for re
(1=robust; 49,440 occurrences) (see Section 4)
(flaglimitr)
215 I1 --- f_n [0/1] Parameter robustness flag for n
(1=robust; 23,587 occurrences) (see Section 4)
(flaglimitn)
217 I1 --- Deb [0/4] Deblending flag (0=not blended)
(flag_deb) (3)
219-226 F8.6 --- Mcorr [0.3/1] Mass correction for deblended galaxies
(see Section 2.2)
228-237 F10.6 mag Depth [-0.23/27]?=-99 Total 5-sigma depth measured
from COSMOS-DASH mosaic ( 5sigmadepth) (4)
239-252 F14.6 --- Chi2 [-99/5.6e+06] GALFIT chi-squared (chi)
254-263 F10.6 --- Chi-nu [-99/141] GALFIT chi-squared per degree of
freedom (chi_nu)
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Note (1): GALFIT flags (see Section 3.1) as follows:
0 = good (14757 occurrences)
1 = suspicious (30008 occurrences)
2 = bad (6567 occurrences)
3 = failed (254 occurrences)
4 = no coverage (211029 occurrences)
Note (2): General use flag (see Section 4);
1 = GALFIT flag<2, re>FWHM (38026 occurrences)
Note (3): Deblending flag (see Section 2.2) as follows:
0 = not blended (49726 occurrences)
1 = deblended (1689 occurrences)
2 = blended (171 occurrences)
4 = no coverage (211029 occurrences)
Note (4): Total 5-sigma depth, measured with empty aperture method assuming
0.7" diameter (see Section 3.6).
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Acknowledgements:
Sam Cutler [secutler at umass.edu]
History:
* Morphological catalog downloaded at:
http://archive.stsci.edu/hlsp/cosmos-dash
* Corrections on e_PA and ID188056 sent by the author
* 04-Oct-2023: Insert into VizieR
* 19-Oct-2023: Updated version sent by the author with fixed values
for all F160W_auto, F160W_tot and 5sigmadepth columns
(End) Emmanuelle Perret [CDS] 28-Aug-2023