J/ApJ/836/185ivo://CDS.VizieR/J/ApJ/836/185doi:10.26093/cds/vizier.18360185CDSTabatabaei F.S.Schinnerer E.Krause M.Dumas G.Meidt S.,Damas-Segovia A.Beck R.Murphy E.J.Mulcahy D.D.Groves B.,Bolatto A.Dale D.Galametz M.Sandstrom K.Boquien M.Calzetti D.,Kennicutt R.C.Hunt L.K.De Looze I.Pellegrini E.W.2017-12-07T06:58:47Z2017-10-30T13:40:57ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesinfrared-sourcesradio-continuum-emissionmagnetic-fieldsWe study the spectral energy distribution (SED) of the radio continuum (RC) emission from the Key Insight in Nearby Galaxies Emitting in Radio (KINGFISHER) sample of nearby galaxies to understand the energetics and origin of this emission. Effelsberg multi-wavelength observations at 1.4, 4.8, 8.4, and 10.5GHz combined with archive data allow us, for the first time, to determine the mid-RC (1-10GHz, MRC) bolometric luminosities and further present calibration relations versus the monochromatic radio luminosities. The 1-10GHz radio SED is fitted using a Bayesian Markov Chain Monte Carlo technique leading to measurements for the nonthermal spectral index (S_{nu}_~{nu}^-{alpha}_nt_^) and the thermal fraction (f_th_) with mean values of {alpha}_nt_=0.97+/-0.16 (0.79+/-0.15 for the total spectral index) and f_th_=(10+/-9)% at 1.4GHz. The MRC luminosity changes over ~3 orders of magnitude in the sample, 4.3x10^2^L_{sun}_<MRC<3.9x10^5^L_{sun}_. The thermal emission is responsible for ~23% of the MRC on average. We also compare the extinction-corrected diagnostics of the star-formation rate (SFR) with the thermal and nonthermal radio tracers and derive the first star-formation calibration relations using the MRC radio luminosity. The nonthermal spectral index flattens with increasing SFR surface density, indicating the effect of the star-formation feedback on the cosmic-ray electron population in galaxies. Comparing the radio and IR SEDs, we find that the FIR-to-MRC ratio could decrease with SFR, due to the amplification of the magnetic fields in star-forming regions. This particularly implies a decrease in the ratio at high redshifts, where mostly luminous/star-forming galaxies are detected.2017ApJ...836..185Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/836/185CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/109 : IRAS Observations of Large Optical Galaxies (Rice+, 1988)VIII/17 : The North 20cm Survey (White+ 1992)VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)J/AJ/80/771 : 5-GHz Survey of Bright Galaxies (Sramek 1975)J/ApJS/36/53 : 2380 MHz survey of bright galaxies (Dressel+, 1978)J/ApJ/378/65 : 8.4GHz observations of compact starbursts (Condon+ 1991)J/A+AS/114/21 : Shapley-Ames Galaxies at 2.8cm (Niklas+, 1995)J/ApJ/586/794 : Multiwavelength luminosities of galaxies (Bell, 2003)J/A+A/418/1 : Radio continuum spectra in Virgo cluster reg. (Vollmer+, 2004)J/ApJ/633/871 : Positions and photometry of HII knots in M51 (Calzetti+, 2005)J/ApJ/622/772 : Redshift survey of submillimeter galaxies (Chapman+, 2005)J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007)J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/ApJ/703/1672 : Far-IR and H{alpha} fluxes in galaxies (Kennicutt+, 2009)J/ApJ/692/556 : Star forming galaxy templates (Rieke+, 2009)J/ApJ/714/1256 : Far-IR star formation rate indicators (Calzetti+, 2010)J/ApJ/731/L41 : 1.4GHz obs. of bright early-type galaxies (Brown+, 2011)J/ApJ/761/140 : Spectroscopy of Herschel-SPIRE galaxies (Casey+, 2012)J/ApJ/745/95 : Herschel FIR & submm photom. of KINGFISH sample (Dale+, 2012)J/A+A/555/A23 : M82-A radio continuum & polarisation study I. (Adebahr+, 2013)J/A+A/552/A19 : Radio-farIR correlation in NGC 6946 (Tabatabaei+, 2013)J/A+A/568/A74 : Low-frequency (115-175MHz) image of M51 (Mulcahy+, 2014)J/A+A/578/A93 : IC 342 multi-frequency radio polarization study (Beck, 2015)J/A+A/576/A33 : KINGFISH galaxy sample radial profile SED (Hunt+, 2015)J/AJ/149/32 : Integrated radio continuum spectra of galaxies (Marvil+, 2015)J/A+A/588/A114 : M101 polarization & magnetic structure (Berkhuijsen+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/836/185https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/836/185http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/836/185https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/836/185https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/836/185http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/836/185GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/836/185/rgal (Basic properties of the galaxy sample, and the radio monochromatic flux densities and the mid-radio continuum (1-10GHz) luminosities (tables 1 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/836/185/rgal?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/836/185/rgal?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/836/185/rgal?GETtext/xml+votable180.050000true128.5366.1816670.0055555555555555566/764 2320 3506 4447 5181 5492 5715 5751 5799 7241 7602 7604 7607 7624 7769 7956 8106 10761 10841 10856 10901 11027 11434 11457 11933 11961 13522 15592 17594 17612 18398 23178 25083 25946 26271 27237 27514 27555 27830 27861 27914 27937 28015 28035 28123 28149 28167 28496 36194 362419.01145471040558e-25 7.089894313847323e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/836/185?format=asciiInfraredRadiodefaultJ/ApJ/836/185/refsReferencesCommCommentmeta.notecharRefReference codemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBibCodeBibcode of the referencemeta.bib.bibcodecharAuthFirst author name(s)meta.bib.authorcharJ/ApJ/836/185/rgalBasic properties of the galaxy sample, and the radio monochromatic flux densities and the mid-radio continuum (1-10GHz) luminosities (tables 1 and 4)SimbadNameSimbad column added by the CDSmeta.idcharr_NType[4]? Flag on NType (see refs.dat file)meta.noteintnullabler_S10.7[begmq] Flag on S10.7 (see refs.dat file)meta.ref;pos.framecharMTypeHubble morphological type from NEDsrc.morph.typecharS8.4[3/430]? Flux density at 8.4GHzmJyphot.flux.density;em.radio.6-12GHzfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy identifiermeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSizeNED angular size; arcmin x arcminphys.angSizechari[12/83] Inclination (1)degsrc.orbital.inclinationintr_i[2]? Flag on i (see refs.dat file)meta.ref;pos.frameintnullableDist[3/31] Distance (2)Mpcpos.distance;pos.heliocentricfloatr_Dist[3]? Flag on Dist (see refs.dat file)meta.ref;pos.frameintnullableNTypeNuclear type ("AGN": 15 occurrences, "SF": 24 occurrences or "SF/AGN": 4 occurrences) (2)src.classcharlogL[6.5/11] log total IR luminosity (3)log(solLum)phys.luminosity;em.IRfloatr_logL[1/5]? Flag on logL (see refs.dat file)meta.refintnullableSFR[0.001/8]? Star Formation Rate (2)solMass/yrphys.SFRfloatnullabler_SFR[6]? Flag on SFR (see refs.dat file)meta.ref;phys.SFRintnullablel_S10.7Limit flag on S10.7meta.code.errorcharS10.7[3/376]? Flux density at 10.7GHzmJyphot.flux.density;em.radio.6-12GHzintnullablee_S10.7? Uncertainty in S10.7mJystat.errorintnullablee_S8.4? Uncertainty in S8.4mJystat.errorfloatnullabler_S8.4[abkmop] Flag on S8.4 (see refs.dat file)meta.ref;pos.framecharS5[13/472]? Flux density at 5GHzmJyphot.flux.density;em.radio.3-6GHzintnullablee_S5? Uncertainty in S5mJystat.errorintnullabler_S5[gv] Flag on S5 (see refs.dat file)meta.ref;pos.framecharl_S4.8Limit flag on S4.8meta.code.errorcharS4.8[0.4/860]? Flux density at 4.8GHzmJyphot.flux.density;em.radio.3-6GHzfloatnullablee_S4.8? Uncertainty in S4.8mJystat.errorfloatnullabler_S4.8[abciklms] Flag on S4.8 (see refs.dat file)meta.ref;pos.framecharS3.7[254]? Flux density at 3.7GHzmJyphot.flux.density;em.radio.3-6GHzintnullablee_S3.7? Uncertainty in S3.7mJystat.errorintnullabler_S3.7[g] Flag on S3.7 (see refs.dat file)meta.ref;pos.framecharS2.7[8/794]? Flux density at 2.7GHzmJyphot.flux.density;em.radio.1500-3000MHzintnullablee_S2.7? Uncertainty in S2.7mJystat.errorintnullabler_S2.7[bghjq] Flag on S2.7 (see refs.dat file)meta.ref;pos.framecharl_S1.4Limit flag on S1.4 (1)meta.code.errorcharS1.4[1.5/1800]? Flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_S1.4? Uncertainty in S1.4mJystat.errorfloatnullabler_S1.4Flag on S1.4 (see refs.dat file)meta.ref;pos.framecharS1.36[49/1100]? Flux density at 1.36 GHzmJyphot.flux.density;em.radio.750-1500MHzintnullablee_S1.36? Uncertainty in S1.36mJystat.errorintnullabler_S1.36[f] Flag on S1.36 (see refs.dat file)meta.ref;pos.framecharMRC[2.6/5.6]? Log mid-radio continuum luminosity (2)log(solLum)phys.luminosityfloatnullableB[4/28]? Magnetic field in {mu}Gauss1e-10Tphys.magFieldfloatnullableE_B? Upper limit on B1e-10Tstat.error;stat.maxfloatnullablee_B? Lower limit on B1e-10Tstat.errorfloatnullableKCatDisplay the KINGFISH data from Hunt+, 2015, J/A+A/576/A33 and Dale+, 2012, J/ApJ/745/95meta.ref.urlintnullableSEDPlot the spectrum with SPECFIND (Vollmer et al. 2009, Cat. VIII/85)meta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar