J/AJ/148/1ivo://CDS.VizieR/J/AJ/148/1doi:10.26093/cds/vizier.51480001CDSZhang J.-J.Wang X.-F.Bai J.-M.Zhang T.-M.Wang B.Liu Z.-W.,Zhao X.-L.Chen J.-C.2017-06-30T05:49:16Z2014-11-20T14:55:08ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomyWide-band photometryultraviolet-photometryspectrophotometryExtensive optical and UltraViolet (UV) observations of the type Ia supernova (SN Ia) 2012fr are presented in this paper. It has a relatively high luminosity, with an absolute B-band peak magnitude of about -19.5mag and a smaller post-maximum decline rate than normal SNe Ia (e.g., {Delta}m_15_(B)=0.85+/-0.05mag). Based on the UV and optical light curves, we derived that a ^56^Ni mass of about 0.88M_{sun}_ was synthesized in the explosion. The earlier spectra are characterized by noticeable high-velocity features of Si II {lambda}6355 and Ca II with velocities in the range of ~22000-25000km/s. At around the maximum light, these spectral features are dominated by the photospheric components which are noticeably narrower than normal SNe Ia. The post-maximum velocity of the photosphere remains almost constant at ~12000km/s for about one month, reminiscent of the behavior of some luminous SNe Ia like SN 1991T. We propose that SN 2012fr may represent a subset of the SN 1991T-like SNe Ia viewed in a direction with a clumpy or shell-like structure of ejecta, in terms of a significant level of polarization reported in Maund et al. (2013MNRAS.433L..20M).2014AJ....148....1Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/148/1CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/753/22 : Swift/UVOT observations of SN 2011fe (Brown+, 2012)J/ApJS/190/418 : Light curves for 165 SNe (Ganeshalingam+, 2010)J/AJ/137/4517 : UVOT light curves of supernovae (Brown+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/148/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/148/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/148/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/148/1https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/148/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/148/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap2.367228618189496e-19 1.2058628298368645e-18UVOpticalInfrareddefaultJ/AJ/148/1/table3Swift UVOT photometry of SN 2012frrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Date (JD-2400000)dtime.epochdoubleDays[-14.22/126] Days after the epoch of B-band maximum JD 2456243.50 (2012 November 12)dtime.epochfloatUVW2? Swift/UVOT ultraviolet UVW2 band magnitudemagphot.mag;em.UVfloatnullablee_UVW2? 1{sigma} error in UVW2magstat.errorfloatnullableUVM2? Swift/UVOT ultraviolet UVM2 band magnitudemagphot.mag;em.UVfloatnullablee_UVM2? 1{sigma} error in UVM2magstat.errorfloatnullableUVW1? Swift/UVOT ultraviolet uvw1 band magnitudemagphot.mag;em.UVfloatnullablee_UVW1? 1{sigma} error in UVW1magstat.errorfloatnullableUmag? Swift/UVOT optical U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? 1{sigma} error in Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag? Swift/UVOT optical B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? 1{sigma} error in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmag? Swift/UVOT optical V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? 1{sigma} error in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableJ/AJ/148/1/table5Magnitudes of the spectrophotometry of SN 2012frrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Date (JD-2400000)dtime.epochdoubleDays[-7.25/70.54] Days after the epoch of B-band maximum JD 2456243.50 (2012 November 12)dtime.epochfloatBmagB band magnitude from spectrophotometry (1)magphot.mag;em.opt.Bfloate_BmagThe 1{sigma} error in Bmag (2)magstat.error;phot.mag;em.opt.BfloatVmagV band magnitude from spectrophotometry (1)magphot.mag;em.opt.Vfloate_VmagThe 1{sigma} error in Vmag (2)magstat.error;phot.mag;em.opt.VfloatRmagR band magnitude from spectrophotometry (1)magphot.mag;em.opt.Rfloate_RmagThe 1{sigma} error in Rmag (2)magstat.error;phot.mag;em.opt.RfloatImagI band magnitude from spectrophotometry (1)magphot.mag;em.opt.Ifloate_ImagThe 1{sigma} error in Imag (2)magstat.error;phot.mag;em.opt.IfloatJ/AJ/148/1/table2BVRI photometry of SN 2012fr from the Li-Jiang 2.4m Telescope (LJT) and Yunnan Faint Object Spectrograph and Camera (YFOSC)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Date (JD-2400000)dtime.epochdoubleDays[10.68/71] Days after the epoch of B-band maximum JD 2456243.50 (2012 November 12)dtime.epochfloatBmag? Johnson B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? The 1{sigma} error in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableVmagJohnson V band magnitudemagphot.mag;em.opt.Vfloate_VmagThe 1{sigma} error in Vmagmagstat.error;phot.mag;em.opt.VfloatRmagKron-Cousins R band magnitudemagphot.mag;em.opt.Rfloate_RmagThe 1{sigma} error in Rmagmagstat.error;phot.mag;em.opt.RfloatImag? Kron-Cousins I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? The 1{sigma} error in Imagmagstat.error;phot.mag;em.opt.Ifloatnullable