J/ApJ/829/78 Dust properties of major-merger galaxy pairs (Domingue+, 2016)
Major-Merger Galaxy Pairs at z=0: Dust properties and companion morphology.
Domingue D.L., Cao C., Xu C.K., Jarrett T.H., Ronca J., Hill E., Jacques A.
<Astrophys. J., 829, 78 (2016)>
=2016ApJ...829...78D 2016ApJ...829...78D
ADC_Keywords: Galaxies, IR ; Morphology
Keywords: galaxies: evolution - galaxies: interactions - galaxies: ISM -
galaxies: spiral
Abstract:
We present an analysis of dust properties of a sample of close
major-merger galaxy pairs selected by Ks magnitude and redshift. The
pairs represent the two populations of spiral-spiral (S+S) and mixed
morphology spiral-elliptical (S+E). The Code Investigating GALaxy
Emission (CIGALE) software is used to fit dust models to the Two
Micron All Sky Survey, Wide-Field Infrared Survey Explorer, and
Herschel flux density measurements, and to derive the parameters
describing the polycyclic aromatic hydrocarbons contribution,
interstellar radiation field, and photodissociation regions. Model
fits verify our previous Spitzer Space Telescope analysis that S+S and
S+E pairs do not have the same level of enhancement of star formation
and differ in dust composition.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . this file
table1.dat 108 85 H-KPAIR Galaxy CIGALE SED Results
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See also:
II/328 : AllWISE Data Release (Cutri+ 2013)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
VIII/95 : Herschel Multi-tiered Extragalactic Survey (Oliver+, 2012)
J/ApJ/499/112 : HST CFRS and LDSS redshift surveys. I. (Brinchmann+ 1998)
J/AJ/126/1183 : Major galaxy mergers at z≲3 (Conselice+ 2003)
J/ApJ/697/1369 : GOODS Ks-selected multiwavelength compilations (Bundy+ 2009)
J/ApJ/713/330 : Spitzer observations of major-merger galaxies (Xu+, 2010)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/ApJ/745/95 : Herschel FIR & submm photometry of KINGFISH sample
(Dale+ 2012)
J/A+A/565/A128 : Dust SED in HRS nearby galaxies (Ciesla+ 2014)
J/MNRAS/445/899 : LVL SEDs and physical properties (Cook+ 2014)
J/A+A/576/A33 : KINGFISH galaxy sample radial profile SED (Hunt+ 2015)
J/ApJS/222/16 : Herschel obs. of major-merger pairs of z<0.1 galaxies
(Cao+ 2016)
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- 2MASX Galaxy id from 2MASX (JHHMMSSss+DDMMSSs)
19- 24 F6.2 [yr-1] SFR/Mstar [-11.24/-9.06] Specific SFR from
Cao et al. 2016 (Cat. J/ApJS/222/16)
26- 30 F5.2 [Msun] log(Mstar) [9.84/11.27] Stellar mass
32- 34 A3 --- Type Galaxy pair type (S+S or S+E)
36- 40 F5.2 --- chi2red [0.03/13.9] Reduced χ2 of model fit
42- 45 F4.2 --- qPAH Percentage of dust in PAH form
47- 51 A5 --- --- [±]
53- 56 F4.2 --- e_qPAH Error in qPAH
58- 62 F5.2 --- gamma Percentage of galaxy dust exposed to U>Umin
64- 68 A5 --- --- [±]
70- 74 F5.2 --- e_gamma Error in gamma
76- 80 F5.2 --- Umin Relative intensity of the diffuse
interstellar radiation field (ISRF)
82- 86 A5 --- --- [±]
88- 91 F4.2 --- e_Umin Error in Umin
93- 97 F5.2 --- Umean [0.87/38.23] Average relative intensity U
of starlight on dust grains
99-103 F5.2 [Lsun] log(Ldust) [9.26/11.45] Luminosity of dust
105-108 F4.2 --- fPDR [0.06/0.73] Fraction of luminosity due to
regions with U>102
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History:
From electronic version of the journal
(End) Marianne Brouty [CDS] 11-Apr-2018