J/ApJ/826/209ivo://CDS.VizieR/J/ApJ/826/209doi:10.26093/cds/vizier.18260209CDSYe C.Zou H.Lin L.Lian J.Hu N.Kong X.2019-08-22T08:39:37Z2016-12-02T11:44:00ZCDS support team

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

cds-question@unistra.frspectroscopyultraviolet-astronomyinfrared-sourcesgalaxiesh-ii-regionsIt has been found that the infrared-to-ultraviolet luminosity ratio (IRX) and ultraviolet spectral slope ({beta}) have a tight correlation in starburst galaxies, while in normal galaxies the relation is deviated and has a much larger scatter. Star formation regions are much simpler in both morphology and physical properties than galaxies, so their photometric and spectroscopic properties are more easily and accurately determined. We have used the integral field spectroscopy and multiband photometric images to study the IRX-{beta} relation of HII regions in a nearby galaxy, NGC 628. There are obvious correlations between the D_n_ (4000), stellar population age, star formation rate, especially H{alpha} equivalent width EW(H{alpha}), and deviation distance d_p_ from the starburst IRX-{beta} relation. However, there is little correlation between the Balmer decrement, metallicity, and d_p_. It is much more complicated than expected, so that we cannot introduce a single second parameter to describe the scatter and deviation of the HII region IRX-{beta} relation.2016ApJ...826..209Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/826/209CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)J/ApJ/806/16 : CHemical Abundances of Spirals (CHAOS) I. NGC628 (Berg+, 2015)J/A+A/559/A114 : Updated O3N2 and N2 abundance indicators (Marino+, 2013)J/A+A/546/A2 : Spectroscopy of HII regions in nearby gal. (Sanchez+, 2012)J/A+A/545/A43 : HII regions in NGC 628 and NGC 6946 (Cedres+, 2012)J/ApJ/757/52 : UV and IR observations for SINGS galaxies. I. (Mao+, 2012)J/ApJS/192/6 : A GALEX UV imaging survey of nearby galaxies (Lee+, 2011)J/ApJ/703/517 : The Spitzer Local Volume Legacy: IR photometry (Dale+, 2009)J/ApJ/701/1965 : Radial dust properties of SINGS galaxies (Munoz-Mateos+, 2009J/ApJS/178/247 : H{alpha} and [NII] survey in local 11 Mpc (Kennicutt+, 2008)J/ApJ/671/333 : Aperture photometry in NGC 5194 (Kennicutt+, 2007)J/A+A/466/905 : HII regions in NGC 628 (Fathi+, 2007)J/ApJ/633/871 : Positions and photometry of HII knots in M51 (Calzetti+, 2005)J/AJ/120/1306 : NGC 628 H II regions (Lelievre+, 2000)J/A+AS/119/499 : NGC 628 and companions photometric distances (Sharina+ 1996)http://calmecac.inaoep.mx/~frosales/pings : PINGS home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/826/209https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/826/209http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/826/209https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/826/209https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/826/209http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/826/209GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/826/209/table1 (Position and photometry of the HII regions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/826/209/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/826/209/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/826/209/table1?GETtext/xml+votable180.050000true24.1893715.796730.0055555555555555566/18398https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/826/209?format=asciiUVInfrareddefaultJ/ApJ/826/209/table1Position and photometry of the HII regionsSeqRunning index numbermeta.id;meta.mainintprimaryArea[0.01/1] H II areakpc**2phys.angSizefloatn_SeqNote on Seq (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNsDisplay data derived from spectra for this source (table 2)meta.ref.urlintnullableRAJ2000[24.12/24.22] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[15.73/15.85] Declination (J2000)degpos.eq.dec;meta.mainlogLFUV[38.3/40.7] log GALEX FUV band luminosity; in erg/s unitslog(1e-07W)phys.luminosity;em.UVfloate_logLNUV[0.002/0.2] Uncertainty in logLNUVlog(1e-07W)stat.errorfloatlogLNUV[38.2/40.6] log GALEX NUV band luminosity; in erg/s unitslog(1e-07W)phys.luminosity;em.UVfloate_logLFUV[0.006/0.4] Uncertainty in logLFUVlog(1e-07W)stat.errorfloatlogLIR[38.7/41] log IR (8 and 24um) luminosity; in erg/s unitslog(1e-07W)phys.luminosity;em.IRfloate_logLIR[0.004/0.3] Uncertainty in logLIRlog(1e-07W)stat.errorfloatIRX[-0.3/1.2] Infrared-to-ultraviolet luminosity ratiophys.luminosityfloate_IRX[0.03/1.6] Uncertainty in IRXstat.errorfloatbeta[-2.1/0.7] Ultraviolet spectral slopespect.indexfloate_beta[0.03/2] Uncertainty in betastat.errorfloatdp[-0.5/1.6] Deviation distance d_p_ from the starburst IRX-{beta} relationstat.errorfloatS12Display data from Sanchez+, 2012, J/A+A/546/A2, within 2"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/826/209/table2The emission line fluxes and properties derived from spectra of HII regionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning index numbermeta.id;meta.mainintlogLHb[36.1/38.5] log H{beta} line luminositylog(1e-07W)phys.luminosityfloate_logLHbUncertainty in logLHblog(1e-07W)stat.errorfloatlogLO3[35.7/38.3] log [O III] line luminositylog(1e-07W)phys.luminosityfloate_logLO3Uncertainty in logLO3log(1e-07W)stat.errorfloatlogLHa[36.9/39.1] log H{alpha} line luminositylog(1e-07W)phys.luminosityfloate_logLHaUncertainty in logLHalog(1e-07W)stat.errorfloatlogLN2[36.4/38.6] log [N II] line luminositylog(1e-07W)phys.luminosityfloate_logLN2Uncertainty in logLN2log(1e-07W)stat.errorfloatEW[2/1183]? H{alpha} equivalent width; Angstroms (1)0.1nmspect.line.eqWidth;em.line.Halphadoublenullablee_EW[0.2/16] Uncertainty in EW0.1nmstat.error;spect.line.eqWidthfloatN2[8.3/8.6] The 12+logO/H number abundance from N2 indicatorphys.abundfloate_N2Uncertainty in N2stat.errorfloatO3N2[8.2/8.8] The 12+logO/H number abundance from O3N2 indicatorphys.abundfloate_O3N2Uncertainty in O3N2stat.errorfloatlogSFR[-4.2/-2] log Star Formation Ratelog(solMass.yr**-1)meta.idfloate_logSFRUncertainty in logSFRlog(solMass.yr**-1)stat.error;phys.SFRfloatDn4000[0.8/2] The D_n_(4000) spectral indexspect.indexfloate_Dn4000Uncertainty in Dn4000stat.errorfloatlogAge[6.3/10] log age (2)log(yr)time.agefloat