J/ApJ/899/89 Structure of 1263 galaxies in Stripe 82 region (Sachdeva+, 2020)
Correlation of Structure and Stellar Properties of Galaxies in Stripe 82.
Sachdeva S., Ho L.C., Li Y.A., Shankar F.
<Astrophys. J., 899, 89 (2020)>
=2020ApJ...899...89S 2020ApJ...899...89S
ADC_Keywords: Galaxies; Star Forming Region; Photometry, infrared
Keywords: Galaxy bulges ; Star formation ; Galaxy structure ;
Galaxy stellar content
Abstract:
Establishing a correlation (or lack thereof) between the bimodal color
distribution of galaxies and their structural parameters is crucial to
understand the origin of bimodality. To achieve that, we have
performed a 2D mass-based structural decomposition (bulge+disk) of all
disk galaxies (total=1263) in the Herschel imaging area of the Stripe
82 region using Ks-band images from the VICS82 survey. The scaling
relations thus derived are found to reflect the internal kinematics
and are employed in combination to select an indubitable set of
classical- and pseudo-bulge-hosting disk galaxies. The rest of the
galaxies (<20%) are marked as disks with "ambiguous" bulges. Pseudo-
and classical bulge-disk galaxies exhibit clear bimodality in terms of
all stellar parameters (M*, specific star formation rate, r-Ks). All
pseudo- bulge-disk galaxies are blue and star forming, and all
classical bulge-disk galaxies are red and quiescent with less than 5%
digressions. Ambiguous bulge- disk galaxies are intermediate to
pseudo- and classical bulge-disk galaxies in the distribution of all
structural and stellar parameters. Δ<µeb>-based on the
placement of bulges on the Kormendy relation-is found to be the most
efficient single structural indicator of both bulge type and stellar
activity. The placement of ambiguous bulge-disk galaxies on scaling
relations and the fundamental plane, in addition to their peculiar
stellar properties, suggests that they are dominantly part of the
green valley.
Description:
The Ks-band images are obtained from the VICS82 survey, i.e., the
VISTA-CFHT Stripe 82 near-IR survey, which covers a near-contiguous
150deg2 of Stripe 82 to an average depth of 21.9mag in the J band
and 21.4mag in the Ks band. This survey has been conducted using the
Canada-France-Hawaii Telescope (CFHT) WIRCam instrument and the
Visible Infrared Survey Telescope for Astronomy (VISTA) VIRCAM
instrument.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 171 1263 Bulge-disc decomposition values of all the 1263
sources analyzed in Ks band
table2.dat 174 1263 Sersic fitting and non-parametric values of all the
1263 sources analyzed in Ks band
table3.dat 222 1263 Intrinsic values of all the 1263 sources analyzed
in Ks band with kinematic and stellar parameters
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See also:
III/218 : ELODIE archive (Prugniel+, 2001)
J/MNRAS/276/1341 : Spectroscopy of E and S0 galaxies (Jorgensen+, 1995)
J/ApJS/147/1 : Classification of nearby galaxies (Conselice+, 2003)
J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004)
J/ApJ/644/30 : HST Observations of 2 high-z clusters (Blakeslee+, 2006)
J/AJ/136/773 : Structure of classical bulges & pseudobulges (Fisher+, 2008)
J/MNRAS/393/1531 : BUDDA structural properties of galaxies (Gadotti+, 2009)
J/AJ/142/3 : 1.4GHz observations of Stripe 82 (Hodge+, 2011)
J/ApJS/196/11 : Bulge+disk decompositions of SDSS galaxies (Simard+, 2011)
J/MNRAS/435/1186 : BI photometry of bulgeless galaxies (Sachdeva, 2013)
J/ApJ/794/120 : Sloan Digital Sky Survey coadd. Stripe 82 (Annis+, 2014)
J/ApJS/210/22 : Herschel Stripe 82 survey (HerS) first catalog (Viero+,2014)
J/ApJS/225/1 : SpIES: the Spitzer IRAC Equatorial Survey (Timlin+, 2016)
J/MNRAS/462/3146 : Herschel-ATLAS DR1 (HATLAS) (Valiante+, 2016)
J/ApJ/831/134 : BH masses & host galaxy dispersion vel. (van den Bosch,2016)
J/MNRAS/477/4711 : Stellar angular momentum for ManGa galaxies (Graham+, 2018)
J/MNRAS/477/4116 : GAMA. galaxy structure across green valley (Kelvin+, 2018)
J/ApJS/244/34 : The CGS. VIII. R-band images of disk galaxies (Gao+, 2019)
J/ApJS/247/20 : CGS IX. R-band single-Sersic fits to ellipticals (Gao+,2020)
http://uhhpc.herts.ac.uk/vics82 : VICS82 main page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- Seq [1/1263] Sequential identifier used in this
study
6- 22 F17.14 deg RAdeg [13/37] Right Ascension, VICS82 (J2000) (G1)
24- 44 F21.18 deg DEdeg [-1.2/1.3] Declination, VICS82 (J2000) (G1)
46- 46 A1 --- Tel Imaging telescope, C=CFHT; V=VISTA
48- 51 I4 --- Tile [1/1019] Tile from which galaxy mosaic is
extracted
53- 59 F7.4 deg RAdeg2 [13/37] Right Ascension (J2000) (G2)
61- 69 F9.6 deg DEdeg2 [-1.19301/1.20159] Declination (J2000) (G2)
71- 75 F5.2 mag magb [12.26/28.35]? apparent magnitude, bulge
component
77- 80 F4.2 mag e_magb [0/2]? Uncertainty in magb
82- 88 F7.3 arcsec Radb [0.15/990]? apparent effective radius, bulge
component
90- 96 F7.5 arcsec e_Radb [0.007/4.48]? Uncertainty in Radb
98-101 F4.2 --- nb [0.05/10]? Sersic index, bulge component
103-106 F4.2 --- e_nb [0/9]? Uncertainty in nb
108-108 A1 --- f_nb [f] Flag on nb, f=fixed nb value
110-113 F4.2 --- arb [0.1/1]? axis ratio, bulge component
115-118 F4.2 --- e_arb [0/1]? Uncertainty in ar-b
120-125 F6.2 deg PAb [-90/90]? position angle, bulge component (1)
127-133 F7.2 deg e_PAb [0.05/1117]? Uncertainty in PAb
135-139 F5.2 mag magd [9.8/22.44]? apparent magnitude, disk component
141-144 F4.2 mag e_magd [0/1.12]? Uncertainty in magd
146-152 F7.3 arcsec Radd [0.18/279]? apparent effective radius, disk
component
154-161 F8.5 arcsec e_Radd [0.009/14]? Uncertainty in Radd
163-166 F4.2 --- ard [0.1/1]? axis ratio, disk component
168-171 F4.2 --- e_ard [0/1.1]? Uncertainty in ard
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Note (1): Position angles as computed by Galfit, which defines them as: the
position angle is 0 if the semi-major axis is aligned parallel to the
Y-axis and increases toward the counter-clockwise direction.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- Seq [1/1263] Sequential identifier used in this
study
6- 22 F17.14 deg RAdeg [13/37] Right Ascension, VICS82 (J2000) (G1)
24- 44 F21.18 deg DEdeg [-1.2/1.3] Declination, VICS82 (J2000) (G1)
46- 46 A1 --- Tel Imaging telescope, C=CFHT; V=VISTA
48- 51 I4 --- Tile [1/1019] Tile from which galaxy mosaic is
extracted
53- 59 F7.4 deg RAdeg2 [13/37] Right Ascension (J2000) (G2)
61- 69 F9.6 deg DEdeg2 [-1.2/1.3] Declination (J2000) (G2)
71- 75 F5.2 mag magg [11.92/17.44]? apparent magnitude, full galaxy
77- 80 F4.2 mag e_magg [0/0.5]? Uncertainty in magg
82- 87 F6.3 arcsec Radg [0.2/77.7]? apparent effective radius, full
galaxy
89- 95 F7.5 arcsec e_Radg [0.01/3.89]? Uncertainty in Radg
97-100 F4.2 --- ng [0.43/9.98]? Sersic index, full galaxy
102-105 F4.2 --- e_ng [0/9.38]? Uncertainty in ng
107-107 A1 --- f_ng [f] Flag on ng, f=fixed ng value
109-112 F4.2 --- arg [0.1/1]? axis ratio, full galaxy
114-117 F4.2 --- e_arg [0/0.29]? Uncertainty in arg
119-124 F6.2 deg PAg [-89.95/89.7]? position angle, full galaxy (1)
126-131 F6.2 deg e_PAg [0.03/155]? Uncertainty in PAg
133-139 F7.4 arcsec rP [2.24/46.71]? apparent total (Petrosian) radius
141-149 F9.6 arcsec e_rP [0.1/2.4]? Uncertainty in rP
151-155 F5.3 --- C [0.531/5.07]? concentration
157-161 F5.3 --- e_C [0.081/1.77]? Uncertainty in C
163-167 F5.3 --- A [0.107/1.31]? asymmetry index
169-174 F6.3 --- e_A [0/100]? Uncertainty in A
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Note (1): Position angles as computed by Galfit, which defines them as: the
position angle is 0 if the semi-major axis is aligned parallel to the
Y-axis and increases toward the counter-clockwise direction.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- Seq [1/1263] Sequential identifier used in this
study
6- 22 F17.14 deg RAdeg [13/37] Right Ascension, VICS82 (J2000)
(G1)
24- 44 F21.18 deg DEdeg [-1.2/1.3] Declination, VICS82 (J2000) (G1)
46- 46 A1 --- Tel Imaging telescope, C=CFHT; V=VISTA
48- 51 I4 --- Tile [1/1019] Tile from which galaxy mosaic is
extracted
53- 59 F7.4 deg RAdeg2 [13/37] Right Ascension (J2000) (G2)
61- 69 F9.6 deg DEdeg2 [-1.2/1.3] Declination (J2000) (G2)
71- 79 F9.5 mag MAGb [-25.8/-9.27]? Absolute magnitude, bulge
component
81- 89 F9.6 mag e_MAGb [0.2/0.8]? Uncertainty in MAGb
91-101 F11.6 kpc Radb [0.13/1391]? Intrinsic effective radius,
bulge component
103-113 F11.8 kpc e_Radb [0.006/70]? Uncertainty in Radb
115-121 F7.4 mag/arcsec2 mub [13.4/45.1]? Absolute average surface
brightness within Radb
123-130 F8.6 mag/arcsec2 e_mub [0.4/1.4]? Uncertainty in mub
132-139 F8.4 mag MAGd [-29.4/-14.9]? Absolute magnitude,
disk component
141-149 F9.6 mag e_MAGd [0.4/0.9]? Uncertainty in M-d
151-160 F10.6 kpc Radd [0.17/582]? Intrinsic scale length,
disk component
162-171 F10.7 kpc e_Radd [0.008/29.1]? Uncertainty in Radd
173-178 F6.3 [Msun] Mass [8.42/11.9]? log, total stellar mass, full
galaxy
180-184 F5.3 [Msun] e_Mass [0/0.2]? Uncertainty in Mass
186-191 F6.3 [Msun/yr] SFR [-3.2/1.7]? log, star formation rate, full
galaxy
193-197 F5.3 [Msun/yr] e_SFR [0.001/1.2]? Uncertainty in SFR
199-209 F11.7 km/s sigma [13.5/836]? Velocity dispersion, full
galaxy
211-222 F12.8 km/s e_sigma [2.06/197]? Uncertainty in sigma
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Global Notes:
Note (G1) : Equatorial positions from VICS82 catalog,
Geach+, 2017ApJS..231....7G 2017ApJS..231....7G, https://uhhpc.herts.ac.uk/vics82
Note (G2) : Equatorial positions from Bottrell+, 2019MNRAS.486..390B 2019MNRAS.486..390B,
catalog: http://orca.phys.uvic.ca/~cbottrel/share/Stripe82/Catalogs/
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 18-Oct-2021