J/ApJS/219/8      SFR for WISE + SDSS spectroscopic galaxies      (Chang+, 2015)

Stellar masses and star formation rates for 1M galaxies from SDSS+WISE. Chang Y.-Y., van der Wel A., da Cunha E., Rix H.-W. <Astrophys. J. Suppl. Ser., 219, 8 (2015)> =2015ApJS..219....8C 2015ApJS..219....8C (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, spectra ; Redshifts ; Photometry, infrared ; Photometry, SDSS ; Energy distributions Keywords: catalogs; galaxies: star formation; galaxies: statistics; galaxies: stellar content; infrared: galaxies Abstract: We combine Sloan Digitital Sky Survey (SDSS) and WISE photometry for the full SDSS spectroscopic galaxy sample, creating spectral energy distributions (SEDs) that cover λ=0.4-22µm for an unprecedentedly large and comprehensive sample of 858365 present-epoch galaxies. Using MAGPHYS (da Cunha+ 2008MNRAS.388.1595D 2008MNRAS.388.1595D), we then simultaneously and consistently model both the attenuated stellar SED and the dust emission at 12 and 22µm, producing robust new calibrations for monochromatic mid-IR star formation rate (SFR) proxies. These modeling results provide the first mid-IR-based view of the bimodality in star formation activity among galaxies, exhibiting the sequence of star-forming galaxies ("main sequence") with a slope of dlogSFR/dlogM*=0.80 and a scatter of 0.39dex. We find that these new SFRs along the SF main sequence are systematically lower by a factor of 1.4 than those derived from optical spectroscopy. We show that for most present-day galaxies, the 0.4-22µm SED fits can exquisitely predict the fluxes measured by Herschel at much longer wavelengths. Our analysis also illustrates that the majority of stars in the present-day universe are formed in luminous galaxies (∼L*) in and around the "green valley" of the color-luminosity plane. We make publicly available the matched photometry catalog and SED modeling results. Description: We use the SDSS spectroscopic galaxy sample as compiled in the New York University Value-added Galaxy Catalog (NYU-VAGC; Blanton+ 2005AJ....129.2562B 2005AJ....129.2562B; Adelman-McCarthy+ 2008, II/282, superseded by II/294; Padmanabhan+ 2008ApJ...674.1217P 2008ApJ...674.1217P), which contains 858365 galaxies with reliable redshift measurements. The SDSS parent sample is cross-matched with the AllWISE source catalog (II/328); see section 2 for further explanations. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 578 858365 Input catalog table2.dat 400 858365 Output catalog -------------------------------------------------------------------------------- See also: V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012) II/328 : AllWISE Data Release (Cutri+ 2013) J/ApJS/196/11 : Bulge+disk decompositions of SDSS galaxies (Simard+, 2011) J/MNRAS/415/2336 : Herschel-ATLAS Science Demonstration Catalog (Rigby+, 2011) J/ApJ/692/556 : Star forming galaxy templates (Rieke+, 2009) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 I7 --- ID [3/2506743] NYU-VAGC catalog index (G1) 9- 22 F14.10 deg RAdeg Right Ascension in decimal degrees (J2000) 24- 37 F14.10 deg DEdeg Declination in decimal degrees (J2000) 39- 51 F13.10 --- z [-0.012/5] NYU-VAGC spectroscopic catalog redshift (G1) 53- 56 I4 --- Plate SDSS plate from NYU-VAGC 58- 62 I5 d MJD SDSS mjd from NYU-VAGC 64- 66 I3 --- Fiber SDSS fiber id from NYU-VAGC 68- 86 A19 --- WISEA ALLWISE designation (JHHMMSS.ss+DDMMSS.s) ("" for blank values) 88- 98 E11.5 Jy flux0-u [0/0.16] SDSS u-band flux before corrections 100-110 E11.5 Jy e_flux0-u ?=9.99999 Uncertainty in flux0-u 112-122 E11.5 Jy flux0-g [0/0.08] SDSS g-band flux before corrections 124-134 E11.5 Jy e_flux0-g ?=9.99999 Uncertainty in flux0-g 136-146 E11.5 Jy flux0-r [0/0.18] SDSS r-band flux before corrections 148-158 E11.5 Jy e_flux0-r [0/0.0017] Uncertainty in flux0-r 160-170 E11.5 Jy flux0-i [0/0.27] SDSS i-band flux before corrections 172-182 E11.5 Jy e_flux0-i ?=9.99999 Uncertainty in flux0-i 184-194 E11.5 Jy flux0-z [0/0.41] SDSS z-band flux before corrections 196-206 E11.5 Jy e_flux0-z ?=9.99999 Uncertainty in flux0-z 208-218 E11.5 Jy flux0-w1 ?=9.99999 WISE/W1-band (3.4um) flux before corrections 220-230 E11.5 Jy e_flux0-w1 ?=9.99999 Uncertainty in flux0-w1 232-242 E11.5 Jy flux0-w2 ?=9.99999 WISE/W2-band (4.6um) flux before corrections 244-254 E11.5 Jy e_flux0-w2 ?=9.99999 Uncertainty in flux0-w2 256-266 E11.5 Jy flux0-w3 ?=9.99999 WISE/W3-band (12um) flux before corrections 268-278 E11.5 Jy e_flux0-w3 ?=9.99999 Uncertainty in flux0-w3 280-290 E11.5 Jy flux0-w4 [0.0006/79] WISE/W4-band (22um) flux before corrections 292-302 E11.5 Jy e_flux0-w4 ?=9.99999 Uncertainty in flux0-w4 304-314 E11.5 Jy flux-u [0/0.2] SDSS u-band flux after corrections 316-326 E11.5 Jy e_flux-u [0/0.014] Uncertainty in flux-u 328-338 E11.5 Jy flux-g [0/0.11] SDSS g-band flux after corrections 340-350 E11.5 Jy e_flux-g [0/0.006] Uncertainty in flux-g 352-362 E11.5 Jy flux-r [0/0.23] SDSS r-band flux after corrections 364-374 E11.5 Jy e_flux-r [0/0.012] Uncertainty in flux-r 376-386 E11.5 Jy flux-i [0/0.34] SDSS i-band flux after corrections 388-398 E11.5 Jy e_flux-i [0/0.017] Uncertainty in flux-i 400-410 E11.5 Jy flux-z [0/0.47] SDSS z-band flux after corrections 412-422 E11.5 Jy e_flux-z [0/0.024] Uncertainty in flux-z 424-434 E11.5 Jy flux-w1 ?=9.99999 WISE/W1-band flux after corrections 436-446 E11.5 Jy e_flux-w1 ?=9.99999 Uncertainty in flux-w1 448-458 E11.5 Jy flux-w2 ?=9.99999 WISE/W2-band flux after corrections 460-470 E11.5 Jy e_flux-w2 ?=9.99999 Uncertainty in flux-w2 472-482 E11.5 Jy flux-w3 ?=9.99999 WISE/W3-band flux after corrections 484-494 E11.5 Jy e_flux-w3 ?=9.99999 Uncertainty in flux-w3 496-506 E11.5 Jy flux-w4 [0/13] WISE/W4-band flux after corrections 508-518 E11.5 Jy e_flux-w4 ?=9.99999 Uncertainty in flux-w4 520-530 E11.5 mag extin-u [0.01/5.7] Galactic extinction correction for u-band 532-542 E11.5 mag extin-g [0.009/4.5] Galactic extinction correction for g-band 544-554 E11.5 mag extin-r [0.006/3.1] Galactic extinction correction for r-band 556-566 E11.5 mag extin-i [0.005/2.3] Galactic extinction correction for i-band 568-578 E11.5 mag extin-z [0.003/1.7] Galactic extinction correction for z-band -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 I7 --- ID [3/2506743] NYU-VAGC catalog index (G1) 9- 14 F6.2 [Msun] lmass2.5 ?=-99.99 log stellar mass; 2.5th percentile 16- 21 F6.2 [Msun] lmass16 ?=-99.99 log stellar mass; 16th percentile 23- 28 F6.2 [Msun] lmass50 ?=-99.99 log stellar mass; 50th percentile 30- 35 F6.2 [Msun] lmass84 ?=-99.99 log stellar mass; 84th percentile 37- 42 F6.2 [Msun] lmass97.5 [7/13]?=-99.99 log stellar mass; 97.5th percentile 44- 50 F7.3 [Msun/yr] lsfr2.5 ?=-99.99 log SFR; 2.5th percentile 52- 58 F7.3 [Msun/yr] lsfr16 ?=-99.99 log SFR; 16th percentile 60- 66 F7.3 [Msun/yr] lsfr50 ?=-99.99 log SFR; 50th percentile 68- 74 F7.3 [Msun/yr] lsfr84 ?=-99.99 log SFR; 84th percentile 76- 82 F7.3 [Msun/yr] lsfr97.5 [-5/3]?=-99.99 log SFR; 97.5th percentile 84- 89 F6.2 [1/yr] lssfr2.5 ?=-99.99 log specific SFR; 2.5th percentile 91- 96 F6.2 [1/yr] lssfr16 ?=-99.99 log specific SFR; 16th percentile 98-103 F6.2 [1/yr] lssfr50 ?=-99.99 log specific SFR; 50th percentile 105-110 F6.2 [1/yr] lssfr84 ?=-99.99 log specific SFR; 84th percentile 112-117 F6.2 [1/yr] lssfr97.5 [-18/-7]?=-99.99 log specific SFR; 97.5th percentile 119-125 F7.3 [Lsun] lDust2.5 ?=-99.99 log Dust luminosity; 2.5th percentile 127-133 F7.3 [Lsun] lDust16 ?=-99.99 log Dust luminosity; 16th percentile 135-141 F7.3 [Lsun] lDust50 ?=-99.99 log Dust luminosity; 50th percentile 143-149 F7.3 [Lsun] lDust84 ?=-99.99 log Dust luminosity; 84th percentile 151-157 F7.3 [Lsun] lDust97.5 [7/13]?=-99.99 log Dust luminosity; 97.5th percentile 159-165 F7.3 --- mu2.5 ?=-99.99 Dust attenuation parameter; 2.5th percentile (2) 167-173 F7.3 --- mu16 ?=-99.99 Dust attenuation parameter; 16th percentile (2) 175-181 F7.3 --- mu50 ?=-99.99 Dust attenuation parameter; 50th percentile (2) 183-189 F7.3 --- mu84 ?=-99.99 Dust attenuation parameter; 84th percentile (2) 191-197 F7.3 --- mu97.5 ?=-99.99 Dust attenuation parameter; 97.5th percentile (2) 199-205 F7.3 --- tauv2.5 ?=-99.99 Dust attenuation parameter; 2.5th percentile (2) 207-213 F7.3 --- tauv16 ?=-99.99 Dust attenuation parameter; 16th percentile (2) 215-221 F7.3 --- tauv50 ?=-99.99 Dust attenuation parameter; 50th percentile (2) 223-229 F7.3 --- tauv84 ?=-99.99 Dust attenuation parameter; 84th percentile (2) 231-237 F7.3 --- tauv97.5 [0.002/6]?=-99.99 Dust attenuation parameter; 97.5th percentile (2) 239-249 E11.6 Mpc3 vmax ?=-99.99 Maximum volume for LMASS_50 251-264 F14.10 [Lsun] lrest-u [-10.6/13.5]?=-99.99 Rest-frame u-band Luminosity 266-279 F14.10 [Lsun] lrest-g [-11.2/14.3]?=-99.99 Rest-frame g-band Luminosity 281-294 F14.10 [Lsun] lrest-r [-11.9/13.7]?=-99.99 Rest-frame r-band Luminosity 296-309 F14.10 [Lsun] lrest-i [-8.8/15.1]?=-99.99 Rest-frame i-band Luminosity 311-324 F14.10 [Lsun] lrest-z [-7.5/17.6]?=-99.99 Rest-frame z-band Luminosity 326-339 F14.10 [Lsun] lrest-w1 [-7.2/12.4]?=-99.99 Rest-frame W1-band Luminosity 341-354 F14.10 [Lsun] lrest-w2 [-7.5/12]?=-99.99 Rest-frame W2-band Luminosity 356-369 F14.10 [Lsun] lrest-w3 [-7.5/12.5]?=-99.99 Rest-frame W3-band Luminosity 371-384 F14.10 [Lsun] lrest-w4 [-6.5/16.4]?=-99.99 Rest-frame W4-band Luminosity 386 I1 --- flagR [0/3]? Radius flag (3) 388 I1 --- flagW [0/2]? WISE flag (1 = single match) (4) 390 I1 --- flagW1 [0/2]? WISE W1 filter detection flag (5) 392 I1 --- flagW2 [0/2]? WISE W2 filter detection flag (5) 394 I1 --- flagW3 [0/2]? WISE W3 filter detection flag (5) 396 I1 --- flagW4 [0/2]? WISE W4 filter detection flag (5) 398 I1 --- flagChi2 [0/1]? Best-fit model flag (1=chi2<3) (6) 400 I1 --- flag [0/1]? Flag (1=good fit) (7) -------------------------------------------------------------------------------- Note (2): In da Cunha et al. (2008MNRAS.388.1595D 2008MNRAS.388.1595D). Note (3): Flag as follows: 1 = Simard radius; 2 = deVaucouleurs radius; 3 = exponential radius; 0 = no radius Note (4): Flag as follows: 1 = single optical matched in WISE; 2 = >1 counterparts within 6"; 0 = not matched. Note (5): Flag as follows: 1 = detected (SNR>2); 2 = upper limit on filter detection; 0 = no data in this filter. Note (6): Flag as follows: 1 = chi2 < 3 for best-fit model; 0 = chi2 > 3 for best-fit model. Note (7): We recommend to use the MAGPHYS modeling results for objects with flag=1 (633205 out of 858365). These are all z<0.2 galaxies with reliable aperture corrections based on size measurements from Simard et al. (2011, J/ApJS/196/11), good WISE photometry (FLAG_W?=1 or 2), and good-quality SED fits (FLAG_CHI2=1). 1 = good fit (flag-r=1; flag-w?=1 or 2; flag-chi2=1; z<0:2); 0 = others. -------------------------------------------------------------------------------- Global note: Note (G1): There are all 858365 galaxies from the SDSS spectroscopic galaxy sample with good redshift measurements (NYU-VAGC catalog: OBJTYPE=GALAXY, Zwarning=0). -------------------------------------------------------------------------------- History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 02-Sep-2015
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