J/ApJ/749/18ivo://CDS.VizieR/J/ApJ/749/18doi:10.26093/cds/vizier.17490018CDSBrown P.J.Dawson K.S.Harris D.W.Olmstead M.Milne P.Roming P.W.A.2017-06-29T08:55:53Z2013-12-05T12:32:04ZCDS support team

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

cds-question@unistra.frvisible-astronomybroad-band-photometryultraviolet-photometrysupernovaeWe compare early ultraviolet (UV) observations of Type Ia supernovae (SNe Ia) with theoretical predictions for the brightness of the shock associated with the collision between SN ejecta and a companion star. Our simple method is independent of the intrinsic flux from the SN and treats the flux observed with the Swift/Ultra-Violet Optical Telescope as conservative upper limits on the shock brightness. Comparing this limit with the predicted flux for various shock models, we constrain the geometry of the SN progenitor-companion system. We find the model of a 1 M_{sun}_ red supergiant companion in Roche-lobe overflow to be excluded at a 95% confidence level for most individual SNe for all but the most unfavorable viewing angles. For the sample of 12 SNe taken together, the upper limits on the viewing angle are inconsistent with the expected distribution of viewing angles for red gaint stars as the majority of companions with high confidence. The separation distance constraints do allow main-sequence companions. A better understanding of the UV flux arising from the SN itself as well as continued UV observations of young SNe Ia will further constrain the possible progenitors of SNe Ia.2012ApJ...749...18Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/749/18CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/143/126 : Spectroscopy of 462 nearby Type Ia supernovae (Blondin+, 2012)J/ApJ/746/85 : THe HST Cluster Supernova Survey. V. (Suzuki+, 2012)J/MNRAS/426/2668 : Type Ia SN progenitors X-ray emission (Nielsen+, 2012)J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011)J/A+A/529/L4 : Reddening law of type Ia supernovae (Chotard+, 2011)J/ApJS/192/1 : Light-curve parameters from the SNLS (Conley+, 2011)J/ApJ/738/162 : SN Ia candidates from the SDSS-II SN Survey (Sako+, 2011)J/ApJ/731/120 : Intrinsic SN Ia light curves (Mandel+, 2011)J/ApJ/730/119 : HST/WFC3 obs. of Cepheids in SN Ia hosts (Riess+, 2011)J/ApJ/722/566 : Host galaxies of SNe Ia in SDSS-II SN survey (Lampeitl+, 2010)J/ApJ/721/1608 : Absolute UV magnitudes of type Ia SNe (Brown+, 2010)J/MNRAS/408/827 : Simulations of supernova explosions (Dessart+, 2010)J/MNRAS/406/782 : Type Ia supernovae luminosities (Sullivan+, 2010)J/AJ/137/4517 : UVOT light curves of supernovae (Brown+, 2009)J/ApJS/185/32 : First-year SDSS-II SN results (Kessler+, 2009)J/MNRAS/389/1577 : UBVRI absolute magnitudes of Type Ia SNe (Takanashi+, 2008)J/MNRAS/376/1301 : UBVRI light-curves of SN 2005cf (Pastorello+, 2007)J/ApJ/659/122 : Improved distances to type Ia supernovae (Jha+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/749/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/749/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/749/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/749/18https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/749/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/749/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/749/18/SNe (SN parameters , explosion dates and companion separation limits)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/749/18/SNe?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/749/18/SNe?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/749/18/SNe?GETtext/xml+votable180.050000true230.3842083-7.41319440.0055555555555555566/2409 4114 7523 17741 18325 19283 25960 26563 34493 36131 38853 44915https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/749/18?format=asciiUVOpticaldefaultJ/ApJ/749/18/SNeSN parameters , explosion dates and companion separation limitsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCPlot of the light curvesmeta.ref.urlcharNameSN Namemeta.id;meta.maincharprimaryPLink to new Swift/UVOT photometry of this SNmeta.ref.urlcharm-M[31.6/35.1] Distance modulusmagphot.mag.distModfloate_m-M[0.08/0.26] m-M uncertaintymagstat.errorfloatr_m-M[b-d] Origin of distance modulus (1)meta.ref;pos.framecharE(B-V)[-0.1/0.23] Reddening E(B-V)magphot.color.excessfloate_E(B-V)[0.03/0.15] E(B-V) uncertaintymagstat.errorfloatDm15[0.85/2] {Delta}m_15_(B) magnitude declinemagsrc.var.amplitudefloate_Dm15[0.01/0.2] Dm15 uncertaintymagstat.errorfloatBMag[-19.84/-17.21] B-band absolute magnitudemagphot.mag;em.opt.Bfloate_BMag[0.17/0.66] BMag uncertaintymagstat.error;phot.mag;em.opt.BfloatHostHost galaxy namemeta.id.parentcharTTypeHost morphological typesrc.morph.typecharDate[3517.31/5232.62] Explostion date (JD-2450000)dtime.epochfloatE_Date[0.02/0.58] Positive error on Datedstat.error;stat.maxfloate_Date[0.05/1.88] Negative error on Datedstat.error;time.epochfloatEp1[2.03/8.24] Epoch of first UV datadtime.epochfloatl_t50aLimit flag on t50ameta.code.errorchart50a[0/180] 50% confidence viewing angle {theta} with a_13_=0.2 (2)degsrc.orbital.inclinationfloatl_t95aLimit flag on t95ameta.code.errorchart95a[0/180] 95% confidence viewing angle {theta} with a_13_=0.2 (2)degsrc.orbital.inclinationfloatl_t50bLimit flag on t50bmeta.code.errorchart50b[0/180] 50% confidence viewing angle {theta} with a_13_=2 (2)degsrc.orbital.inclinationfloatl_t95bLimit flag on t95bmeta.code.errorchart95b[0/180] 95% confidence viewing angle {theta} with a_13_=2 (2)degsrc.orbital.inclinationfloatSimbadSimbad 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.mainJ/ApJ/749/18/table1New SN photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSN namemeta.id;meta.maincharFiltSwift/UVOT filter (u, b, v, uvm2, uvw1 or uvw2)meta.notecharJD[4606.48/5271.67] Julian Date of observation; JD-2450000dtime.epochfloatl_magLimit on magmeta.code.errorcharmag[13.24/21.26] Observed magnitude in Filtmagphot.magfloate_mag[0.04/0.36]? Uncertainty in magmagstat.error;phot.magfloatnullable