J/ApJ/839/83ivo://CDS.VizieR/J/ApJ/839/83doi:10.26093/cds/vizier.18390083CDSWinkler P.F.Blair W.P.Long K.S.2021-01-22T14:46:18Z2018-01-11T09:15:58ZCDS support team

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

cds-question@unistra.frsupernova-remnantsspectroscopygalaxiesh-ii-regionsWe report the results from a spectrophotometric study sampling the 300 candidate supernova remnants (SNRs) in M83 identified through optical imaging with Magellan/IMACS and Hubble Space Telescope/WFC3. Of the 118 candidates identified based on a high [SII]{lambda}{lambda}6716,6731 to H{alpha} emission ratio, 117 show spectroscopic signatures of shock-heated gas, confirming them as SNRs-the largest uniform set of SNR spectra for any galaxy. Spectra of 22 objects with a high [OIII]{lambda}5007 to H{alpha} emission ratio, selected in an attempt to identify young ejecta-dominated SNRs like Cas A, reveal only one (previously reported) object with the broad (1000km/s) emission lines characteristic of ejecta-dominated SNRs, beyond the known SN1957D remnant. The other 20 [OIII]-selected candidates include planetary nebulae, compact HII regions, and one background QSO. Although our spectroscopic sample includes 22 SNRs smaller than 11pc, none of the other objects show broad emission lines; instead their spectra stem from relatively slow (~200km/s) radiative shocks propagating into the metal-rich interstellar medium of M83. With six SNe in the past century, one might expect more of M83's small-diameter SNRs to show evidence of ejecta; this appears not to be the case. We attribute their absence to several factors, including that SNRs expanding into a dense medium evolve quickly to the ISM-dominated phase, and that SNRs expanding into regions already evacuated by earlier SNe are probably very faint.2017ApJ...839...83Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/839/83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/227 : The Asiago Supernova Catalogue 1999 (Barbon+, 1999)II/179 : Southern Spectrophotometric Standards. I + II (Hamuy+ 1992,94)J/A+AS/130/421 : Radio continuum study of the MC (Filipovic+ 1998)J/AJ/119/2214 : Photometry of Magellanic OB associations (Massey+, 2000)J/A+A/410/53 : M83 X-ray sources (Soria+, 2003)J/MNRAS/355/44 : ATCA SMC Radio Continuum Source. II. (Payne+, 2004)J/A+A/441/981 : HII regions in 5 spiral galaxies (Bresolin+, 2005)J/ApJ/695/580 : Oxygen abundance in M83 (Bresolin+, 2009)J/ApJS/203/8 : Optical SNR candidates in M83 (Blair+, 2012)J/ApJ/788/55 : HST/WFC3 SNR discoveries in M83 (NGC5236) (Blair+, 2014)J/ApJS/212/21 : A deep Chandra ACIS survey of M83 (Long+, 2014)J/A+A/578/A100 : Infrared massive stellar content of M83 (Williams+, 2015)http://hea-www.cfa.harvard.edu/ChandraSNR/ : Chandra SNR catalog home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/839/83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/839/83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/839/83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/839/83https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/839/83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/839/83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/839/83/siicand (The 118 [SII]-selected SNR candidates with their emission line fluxes (tables 2 and 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/839/83/siicand?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/839/83/siicand?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/839/83/siicand?GETtext/xml+votable180.050000true204.166625-29.859750.005555555555555556Cone search capability for table J/ApJ/839/83/oiiicand (The 22 [OIII]-selected SNR candidates with their emission line fluxes (tables 3 and 5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/839/83/oiiicand?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/839/83/oiiicand?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/839/83/oiiicand?GETtext/xml+votable180.050000true204.1835417-29.85752780.005555555555555556Cone search capability for table J/ApJ/839/83/hiireg (The HII regions with emission line fluxes (tables 6 and 7))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/839/83/hiireg?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/839/83/hiireg?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/839/83/hiireg?GETtext/xml+votable180.050000true204.170875-29.86583330.0055555555555555566/43881https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/839/83?format=asciidefaultJ/ApJ/839/83/siicandThe 118 [SII]-selected SNR candidates with their emission line fluxes (tables 2 and 4)SimbadNameSimbad column added by the CDSmeta.idcharu_Hb/HaUncertainty flag on Hb/Hameta.code.error;phys.abundcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (G1)meta.id;meta.maincharf_Name[1/2] Flag on Name (1)meta.codecharONameOther names (G1)meta.idcharRAJ2000[13] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[29] Degree of Declination (J2000)pos.eq.dec;meta.mainDiam[2.7/81] Diameterpcpos.distancefloatRad[0.1/7] Galactocentric radiuskpcphys.size.radius;pos.galactocentricfloat[LKB2014]X-ray detection source ID (L14-NNN) (2)meta.id.crosscharMaskMask IDmeta.id;obscharBCatDisplay data from Blair+, 2012, J/ApJS/203/8 and 2014, J/ApJ/788/55 within 1"meta.ref.urlintnullableF(Ha)[7/1759]? H{alpha} Flux, in 10-17erg/cm^2^/s units (3)1e-20W.m**-2phot.fluxintnullableHb/Ha[11/170]? Ratio of H{beta} to H{alpha} (4)phot.flux;arith.ratiointnullableOIII/Ha[4/855]? Ratio of [OIII]5007 to H{alpha} (4)phot.flux;arith.ratiointnullableu_OIII/HaUncertainty flag on [OIII]/Hameta.code.errorcharOI/Ha[3/300]? Ratio of [OI] 6300 to H{alpha} (4)phot.flux;arith.ratiointnullableu_OI/HaUncertainty flag on [OI]/Hameta.code.error;phys.abundcharNII/Ha[82/740]? Ratio of [NII]6584 to H{alpha} (4)phot.flux;arith.ratiointnullableSII6717/Ha[23/353]? Ratio of [SII]6717 to H{alpha} (4)phot.flux;arith.ratiointnullableSII6731/Ha[15/261]? Ratio of [SII]6731 to H{alpha} (4)phot.flux;arith.ratiointnullableSII/Ha[0.1/2.1]? Ratio of total [SII] to H{alpha}phot.flux;arith.ratiofloatnullableJ/ApJ/839/83/oiiicandThe 22 [OIII]-selected SNR candidates with their emission line fluxes (tables 3 and 5)SimbadNameSimbad column added by the CDSmeta.idcharNameName (G1)meta.id;meta.maincharONameOther names (G1)meta.idchar[LKB2014]X-ray detection source ID (L14-NNN) (2)meta.id.crosscharMaskMask IDmeta.id;obscharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Name[1/2] Flag on Name (1)meta.codecharRAJ2000[13] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[29] Degree of Declination (J2000)pos.eq.dec;meta.mainDiam[2.7/81] Diameterpcpos.distancefloatRad[0.1/7] Galactocentric radiuskpcphys.size.radius;pos.galactocentricfloatBCatDisplay data from Blair+, 2012, J/ApJS/203/8 and 2014, J/ApJ/788/55 within 1"meta.ref.urlintnullableF(Ha)[7/1759]? H{alpha} Flux, in 10-17erg/cm^2^/s units (3)1e-20W.m**-2phot.fluxintnullableHb/Ha[11/170]? Ratio of H{beta} to H{alpha} (4)phot.flux;arith.ratiointnullableu_Hb/HaUncertainty flag on Hb/Hameta.code.error;phys.abundcharOIII/Ha[4/855]? Ratio of [OIII]5007 to H{alpha} (4)phot.flux;arith.ratiointnullableu_OIII/HaUncertainty flag on [OIII]/Hameta.code.errorcharOI/Ha[3/300]? Ratio of [OI] 6300 to H{alpha} (4)phot.flux;arith.ratiointnullableu_OI/HaUncertainty flag on [OI]/Hameta.code.error;phys.abundcharNII/Ha[82/740]? Ratio of [NII]6584 to H{alpha} (4)phot.flux;arith.ratiointnullableSII6717/Ha[23/353]? Ratio of [SII]6717 to H{alpha} (4)phot.flux;arith.ratiointnullableSII6731/Ha[15/261]? Ratio of [SII]6731 to H{alpha} (4)phot.flux;arith.ratiointnullableSII/Ha[0.1/2.1]? Ratio of total [SII] to H{alpha}phot.flux;arith.ratiofloatnullableJ/ApJ/839/83/hiiregThe HII regions with emission line fluxes (tables 6 and 7)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIIHII Namemeta.id;meta.maincharRAJ2000[13] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[29] Degree of Declination (J2000)pos.eq.dec;meta.mainRad[0.6/7] Galactocentric radiuskpcphys.size.radius;pos.galactocentricfloatMaskMask IDmeta.id;obscharF(Ha)[90/9809] H{alpha} Flux, in 10^-17^erg/cm^2^/s1e-20W.m**-2phot.fluxintHb/Ha[34/96] Ratio of H{beta} to H{alpha} (1)phot.flux;arith.ratiointOIII/Ha[1/79] Ratio of [OIII]5007 to H{alpha} (1)phot.flux;arith.ratiointOI/Ha[1/4]? Ratio of [OI]6300 to H{alpha} (1)phot.flux;arith.ratiointnullableu_OI/HaUncertainty flag on [OI]/Hameta.code.error;phys.abundcharNII/Ha[97/154] Ratio of [NII]6584 to H{alpha} (1)phot.flux;arith.ratiointSII6717/Ha[22/50] Ratio of [SII]6717 to H{alpha} (1)phot.flux;arith.ratiointSII6731/Ha[16/37] Ratio of [SII]6731 to H{alpha} (1)phot.flux;arith.ratiointSII/Ha[0.1/0.3] Ratio of total [SII] to H{alpha}phot.flux;arith.ratiofloatSimbadSimbad column added by the CDSmeta.ref.urlchar