J/ApJ/573/306ivo://CDS.VizieR/J/ApJ/573/306doi:10.26093/cds/vizier.15730306CDSEck C.R.Cowan J.J.Branch D.2017-07-03T14:25:56Z2007-03-11T23:01:41ZCDS support team

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

cds-question@unistra.frsupernovaeradio-sourcesWe report Very Large Array radio observations of 29 supernovae (SNe) with ages ranging from 10 days to about 90yr past explosion. These observations significantly contribute to the existing data pool on such objects. Included are detections of known radio SNe 1950B, 1957D, 1970G, and 1983N, the suspected radio SN 1923A, and the possible radio SN 1961V. None of the remaining 23 observations resulted in detections, providing further evidence to support the observed trend that most SNe are not detectable radio emitters. To investigate the apparent lack of radio emission from the SNe reported here, we have followed standard practice and used Chevalier's "standard model" to derive (upper limits to) the mass-loss rates for the supernova progenitors. These upper limits to the fluxes are consistent with a lack of circumstellar material needed to provide detectable radio emission for SNe at these ages and distances. Comparison of the radio luminosities of these supernovae as a function of age past explosion to other well-observed radio SNe indicates that the Type II SNe upper limits are more consistent with the extrapolated light curves of SN 1980K than of SN 1979C, suggesting that SN 1980K may be a more typical radio emitter than SN 1979C. For completeness, we have included an appendix where the results of analyses of the non-SN radio sources are presented. Where possible, we make (tentative) identifications of these sources using various methods.2002ApJ...573..306Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/573/306CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/218 : Sternberg Supernova Catalogue (Tsvetkov+ 1998)II/227 : The Asiago Supernova Catalogue 1999 (Barbon+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/573/306https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/573/306http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/573/306https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/573/306https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/573/306http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/573/306GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/573/306/table5 (Summary of observational data on non-SNe sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/573/306/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/573/306/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/573/306/table5?GETtext/xml+votable180.050000true40.13083337.1508330.005555555555555556Cone search capability for table J/ApJ/573/306/SNe (Observational and derived data of the studied supernovae)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/573/306/SNe?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/573/306/SNe?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/573/306/SNe?GETtext/xml+votable180.050000true10.6784641.2677190.0055555555555555566/1006 2369 2372 2709 5715 5978 7743 10819 10824 11434 13522 26113 26319 26330 27261 27426 27861 28167 28173 28631 28636 43262 43604 43874 438819.932213363424795e-25 5.517905791682326e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/573/306?format=asciiRadiodefaultJ/ApJ/573/306/table4Derived mass-loss rates for upper limits and detectionsTypeSupernova typesrc.classcharDistDistanceMpcpos.distance;pos.heliocentricfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova namemeta.id;meta.maincharAge? Age at the date of observationdtime.ageintnullablel_S20cmLimit flag on S20cmmeta.code.errorcharS20cm? Flux density at 20cmmJyphot.flux.density;em.radio.750-1500MHzfloatnullablel_S6cmLimit flag on S6cmmeta.code.errorcharS6cm? Flux density at 6cmmJyphot.flux.density;em.radio.3-6GHzfloatnullablel_SotherLimit flag on Sothermeta.code.errorcharSother? Other flux densitymJyphot.flux.densityfloatnullablel_dM/dtILimit flag on dM/dtImeta.code.errorchardM/dtI? Type I mass-loss rate1e-06solMass.yr**-1phys.mass.lossfloatnullablel_dM/dtIILimit flag on dM/dtIImeta.code.errorchardM/dtII? Type II mass-loss rate1e-06solMass.yr**-1phys.mass.lossfloatnullableJ/ApJ/573/306/table5Summary of observational data on non-SNe sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalGalaxy namemeta.id.parentcharm_Gal[ES] Multiplicity index on Galmeta.code.multipcharMTypeMorphological typesrc.morph.typecharSourceSource name in the galaxy (1)meta.id;meta.mainRAJ2000Peak right ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000Peak declination (J2000)pos.eq.dec;meta.mainS20cm? Peak flux at 20cmmJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_S20cm? rms uncertainty on S20cmmJystat.errorfloatnullableS6cm? Peak flux at 6cmmJyphot.flux.density;em.radio.3-6GHzfloatnullablee_S6cm? rms uncertainty on S6cmmJystat.errorfloatnullableNote[*] See Note (3)meta.notecharS3.6cm? Peak flux at 3.6cmmJyphot.flux.density;em.radio.6-12GHzfloatnullablee_S3.6cm? rms uncertainty on S3.6cmmJystat.errorfloatnullableClassClassification (H II, SNR or GC for galactic center)src.classcharNotesNotes in notes.dat filemeta.notecharJ/ApJ/573/306/notesNotes to table3.dat and table5.datrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoteCode of the notemeta.noteintTextText of the notemeta.notecharJ/ApJ/573/306/table2Distances assumed for SNerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova namemeta.id;meta.maincharTypeSupernova typesrc.classcharGalParent Galaxysrc.class.starGalaxycharDistDistanceMpcpos.distance;pos.heliocentricfloatRefReferences (1)meta.refintJ/ApJ/573/306/SNeObservational and derived data of the studied supernovaeVLAVLA configurationinstr.setupcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova namemeta.id;meta.maincharprimaryFreqFrequencyGHzem.freqfloatDateObservation datetime.epoch;obsnullableDurDuration of the observationhtime.expofloatRAB1950Supernova right ascension (B1950.0)pos.eq.ra;meta.mainDEB1950Supernova declination (B1950.0)pos.eq.dec;meta.mainTypeSN Typesrc.classcharGalParent galaxy name (1)meta.idcharOGalOther name of parent galaxymeta.id.parentcharRAgParent galaxy right ascension (B1950.0)pos.eq.raDEgParent galaxy declination (B1950.0)pos.eq.decMTypeGalaxy typemeta.notecharAge? Age at the time of observation (2)yrtime.agefloatnullablel_S20cmLimit flag on S20cmmeta.code.errorcharS20cm? Flux density at 20cm (3)mJyphot.flux.density;em.radio.750-1500MHzfloatnullablee_S20cm? rms uncertainty on S20cmJystat.errorfloatnullablel_S6cmLimit flag on S6cmmeta.code.errorcharS6cm? Flux density at 6cm (3)mJyphot.flux.density;em.radio.3-6GHzfloatnullablee_S6cm? rms uncertainty on S6cmmJystat.errorfloatnullablel_SotherLimit flag on Sothermeta.code.errorcharSother? Other flux density (3)mJyphot.flux.densityfloatnullablee_Sother? rms uncertainty on SothermJystat.errorfloatnullableNotesNotes in notes.dat filemeta.notecharSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed