J/ApJS/244/24 A z=0 Multiwavelength Galaxy Synthesis (z0MGS). I. (Leroy+, 2019)
A z=0 Multiwavelength Galaxy Synthesis.
I. A WISE and GALEX atlas of local galaxies.
Leroy A.K., Sandstrom K.M., Lang D., Lewis A., Salim S., Behrens E.A.,
Chastenet J., Chiang I.-D., Gallagher M.J., Kessler S., Utomo D.
<Astrophys. J. Suppl. Ser., 244, 24-24 (2019)>
=2019ApJS..244...24L 2019ApJS..244...24L (SIMBAD/NED BibCode)
ADC_Keywords: Galaxy catalogs; Infrared sources; Ultraviolet
Keywords: galaxies: general; galaxies: ISM; galaxies: spiral
galaxies: star formation; infrared: galaxies; ultraviolet: galaxies
Abstract:
We present an atlas of ultraviolet and infrared images of ∼15750 local
(d≲50Mpc) galaxies, as observed by NASA's Wide-field Infrared Survey
Explorer (WISE) and Galaxy Evolution Explorer (GALEX) missions. These
maps have matched resolution (FWHM 7.5" and 15"), matched astrometry,
and a common procedure for background removal. We demonstrate that
they agree well with resolved intensity measurements and integrated
photometry from previous surveys. This atlas represents the first part
of a program (the z=0 Multiwavelength Galaxy Synthesis) to create a
large, uniform database of resolved measurements of gas and dust in
nearby galaxies. This atlas allows us estimate local and integrated
star formation rates (SFRs) and stellar masses (M*) across the local
galaxy population in a uniform way. In the appendix, we use the
population synthesis fits of Salim+ (2016ApJS..227....2S 2016ApJS..227....2S and
2018ApJ...859...11S 2018ApJ...859...11S) to calibrate integrated M* and SFR estimators
based on GALEX and WISE. Because they leverage a Sloan Digital Sky
Survey (SDSS)-based training set of >100000 galaxies, these
calibrations have high precision and allow us to rigorously compare
local galaxies to SDSS results. We provide these SFR and M*
estimates for all galaxies in our sample and show that our results
yield a "main sequence" of star-forming galaxies comparable to
previous work. We also show the distribution of intensities from
resolved galaxies in NUV-to-WISE1 versus WISE1-to-WISE3 space, which
captures much of the key physics accessed by these bands.
Description:
Our final "z=0 Multiwavelength Galaxy Synthesis" (z0MGS) sample,
extracted from LEDA, consists of ∼15750 local galaxies with luminosity
greater than the Large Magellanic Cloud (LMC) and likely to lie within
∼50Mpc.
To create the WISE maps, we used the unWISE reprocessing
(Lang 2014AJ....147..108L 2014AJ....147..108L) of the WISE all-sky survey
(Wright+ 2010AJ....140.1868W 2010AJ....140.1868W). See Section 4.
To create the GALEX maps, we downloaded every FUV and NUV tile
obtained by GALEX during its mission and constructed our own cutouts.
See Section 5.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 105 15748 SFR and M* estimates for local galaxies
table5.dat 63 100 WISE Mass-to-Light ratio and SFR calibrations
in M*-sSFR space
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See also:
VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)
VII/238 : HYPERLEDA. II. Homogenized HI data (Paturel+, 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
II/335 : Revised cat. of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/363 : The band-merged unWISE Catalog (Schlafly+, 2019)
J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007)
J/ApJ/671/333 : Aperture photometry in NGC 5194 (Kennicutt+, 2007)
J/ApJS/173/572 : GALEX/Spitzer photometry in NGC 7331 (Thilker+, 2007)
J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)
J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)
J/ApJ/703/517 : The Spitzer Local Volume Legacy: IR photometry (Dale+, 2009)
J/ApJ/706/599 : Hα and UV SFR in the local volume (Lee+, 2009)
J/PASP/122/261 : Herschel Reference Survey Sample (Boselli+, 2010)
J/ApJ/714/1256 : Far-IR star formation rate indicators (Calzetti+, 2010)
J/PASP/122/1397 : Spitzer Survey of Stellar Structure in Gal. (Sheth+, 2010)
J/PASP/123/1011 : Star Formation Reference Survey (SFRS) (Ashby+, 2011)
J/ApJ/777/42 : Kinematic and HI data for the NFGS (Kannappan+, 2013)
J/A+A/582/A121 : Dust properties in galaxies (Remy-Ruyer+, 2015)
J/AJ/152/50 : Cosmicflows-3 catalog (CF3) (Tully+, 2016)
J/ApJS/234/18 : GALEX/S4G surface brightness profiles. I. (Bouquin+, 2018)
J/A+A/609/A37 : 875 nearby galaxies multiwavelength photometry (Clark+, 2018)
J/A+A/622/A103 : Python Code Investigating GALaxy Emission (Boquien+, 2019)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- PGC [4/5953111] PGC identifier
9- 17 A9 --- NGC NGC identifier; if available
19- 28 A10 --- UGC UGC identifier; if available
30- 36 A7 --- IC IC identifier; if available
38- 42 F5.1 Mpc Dist [0.4/335] Adopted distance
44- 47 F4.2 [Mpc] e_Dist [0.01/1.1] Uncertainty in log10 distance
49- 53 F5.2 [Msun] logM* [5.9/12.2]? log stellar mass
55- 58 F4.2 [Msun] e_logM* [0.1/1.2]? Uncertainty in logM* (1)
60- 63 F4.2 [Msun/Lsun] Gamma* [0.2/0.5]? Adopted WISE 3.4 micron band
mass-to-light ratio (2)
65- 72 A8 --- n_Gamma* Method used to estimate Gamma*
74- 78 F5.2 [Msun/yr] logSFR [-5.2/3.1]? log star formation rate
80- 83 F4.2 [Msun/yr] e_logSFR [0.2/3.3]? Uncertainty in logSFR (1)
85- 93 A9 --- n_logSFR Method used to estimate logSFR
95- 99 F5.2 [-] DelMS [-1.6/2.4]? Offset from star forming
main sequence (3)
101-105 A5 --- Flags [AGS, ] Additional flag(s) (4)
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Note (1): Not including distance uncertainty.
Note (2): If no logSFR is provided, assume Gamma* of 0.5 Msun/Lsun, a
reasonable upper limit (FIXEDUL).
Note (3): Not provided for quiescent galaxies or galaxies without
hybrid SFR tracers.
Note (4): Flag as follows:
S = heavy star contamination;
G = galaxy overlap;
A = saturation a concern.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 5 F5.2 [Msun] logM* [9/11] log stellar mass; X axis
7- 12 F6.2 [Msun] logSFR/M* [-12/-8.2] log stellar mass from CIGALE;
Y axis
14- 16 F3.1 [-] logN [1/4]? log number of galaxies in cell
18- 21 F4.2 [Msun/Lsun] Gamma* [0.04/0.52]? Median WISE 3.4 micron band
mass to light ratio
23- 28 F6.2 --- logC1 [-43.2/-42.5]? log C for WISE 22um band4
in FUV+WISE4 in Msun/yr/(erg/s)
30- 35 F6.2 --- logC2 [-43.9/-42.6]? log C for WISE 22um band4
in NUV+WISE4 in Msun/yr/(erg/s)
37- 42 F6.2 --- logC3 [-43.1/-42.4]? log C for WISE 22um band4
in WISE4 only in Msun/yr/(erg/s)
44- 49 F6.2 --- logC4 [-43.4/-42]? log C for WISE 12um band3
in FUV+WISE3 in Msun/yr/(erg/s)
51- 56 F6.2 --- logC5 [-43.4/-42]? log C for WISE 12um band3
in NUV+WISE3 in Msun/yr/(erg/s)
58- 63 F6.2 --- logC6 [-43.3/-41.9]? log C for WISE 12um band3
in WISE3 only in Msun/yr/(erg/s)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Feb-2020