J/ApJ/748/L29ivo://CDS.VizieR/J/ApJ/748/L29doi:10.26093/cds/vizier.17489029CDSRussell B.R.Immler S.2018-01-08T06:37:48Z2013-11-29T15:10:22ZCDS support team

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

cds-question@unistra.frsupernovaestellar-massesx-ray-sourcesWe have considered 53 Type Ia supernovae (SNe Ia) observed by the Swift X-Ray Telescope. None of the SNe Ia are individually detected at any time or in stacked images. Using these data and assuming that the SNe Ia are a homogeneous class of objects, we have calculated upper limits to the X-ray luminosity (0.2-10 keV) and mass-loss rate of L_0.2-10_<1.7x10^38^erg/s and \dot{M}<1.1x10^-6^M_{sun}_/yr x (v_w_)/(10km/s), respectively. The results exclude massive or evolved stars as the companion objects in SN Ia progenitor systems, but allow the possibility of main sequence or small stars, along with double degenerate systems consisting of two white dwarfs, consistent with results obtained at other wavelengths (e.g., UV, radio) in other studies.2012ApJ...748L..29Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/748/L29CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/MNRAS/426/2668 : Type Ia SN progenitors soft X-ray emission (Nielsen+, 2012)J/MNRAS/425/1789 : Berkeley supernova Ia program. I. (Silverman+, 2012)J/ApJ/747/L19 : Type Ia SNR 0519-69.0 progenitors search (Edwards+, 2012)J/MNRAS/406/782 : Type Ia supernovae luminosities (Sullivan+, 2010)J/ApJ/699/L139 : Spectral parameters of SNe Ia (Wang+, 2009)J/A+A/500/L17 : Spectral flux ratio of SN Ia (Bailey+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/748/L29https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/748/L29http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/748/L29https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/748/L29https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/748/L29http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/748/L29GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/748/L29/table1 (Type Ia supernova properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/748/L29/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/748/L29/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/748/L29/table1?GETtext/xml+votable180.050000true139.0519583-16.30444440.0055555555555555566/2265 2395 2409 3393 4114 4807 4966 7523 8072 8085 8667 8719 9591 10379 10563 11246 11939 17239 17741 18061 18325 18753 19241 20046 21207 23349 25344 25513 25960 26432 27348 27564 28035 30160 31158 32602 33228 33958 34098 34326 34493 34534 36131 36863 38664 38853 38985 39858 40379 44660 44915https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/748/L29?format=asciiX-raydefaultJ/ApJ/748/L29/table1Type Ia supernova propertiesDist[10.78/127] Distance from NEDMpcpos.distance;pos.heliocentricfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSupernova name (YYYYaa)meta.id;meta.maincharDate[2/832] Weighted average date after discoverydtime.epoch;stat.meanfloatb_DateLower end of date rangedtime.end;stat.minfloatB_DateUpper end of date rangedtime.end;stat.maxfloatExp[0.7/288.3] Exposure timekstime.duration;obs.exposurefloatLum[2/2329] 3{sigma} upper limit of 0.2-10keV keV luminosity (in 10^38^erg/s)1e+31Wphys.luminosity;em.X-rayfloatMdot[3.2/75] The 3{sigma} upper limit mass loss rate, assuming V_wind_=10km/s.1e-07solMass.yr**-1phys.mass.loss;stat.maxfloatSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.main