J/ApJ/753/22ivo://CDS.VizieR/J/ApJ/753/22doi:10.26093/cds/vizier.17530022CDSBrown P.J.Dawson K.S.de Pasquale M.Gronwall C.Holland S.,Immler S.Kuin P.Mazzali P.Milne P.Oates S.Siegel M.2017-07-06T06:25:54Z2014-03-06T12:11:35ZCDS support team

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

cds-question@unistra.frsupernovaeultraviolet-photometryvisible-astronomymedium-band-photometryWe present the earliest ultraviolet (UV) observations of the bright Type Ia supernova SN 2011fe/PTF11kly in the nearby galaxy M101 at a distance of only 6.4 Mpc. It was discovered shortly after explosion by the Palomar Transient Factory and first observed by Swift/UVOT about a day after explosion. The early UV light is well defined, with ~20 data points per filter in the five days after explosion. These early and well-sampled UV observations form new template light curves for comparison with observations of other SNe Ia at low and high redshift. We report fits from semiempirical models of the explosion and find the time evolution of the early UV flux to be well fitted by the superposition of two parabolic curves. Finally, we use the early UV flux measurements to examine a possible shock interaction with a non-degenerate companion. From models predicting the measurable shock emission, we find that even a solar mass companion at a distance of a few solar radii is unlikely at more than 95% confidence.2012ApJ...753...22Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/753/22CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/A+A/554/A27 : 2011fe spectrophotometric time series (Pereira+, 2013)J/MNRAS/426/2668 : X-ray emission of Type Ia SN progenitors (Nielsen+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/753/22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/753/22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/753/22https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/753/22https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/753/22http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/753/22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVOpticaldefaultJ/ApJ/753/22/table2UV light curve templatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiltFilter used in observation (uvm2, uvw1 or uvw2)instr.setup;obscharEpoch[-15/50] Epoch from maximum (1)dtime.epochfloatmag[0/8.3] Template magnitude in Filter (1)magphot.magfloatJ/ApJ/753/22/table1SN2011fe UVOT magnitudes, count rates and fluxesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiltFilter used in observation (u, b, v, uvm2, uvw1 or uvw2)instr.setup;obscharMJDModified Julian Date of observationdtime.epochdoublemag[10/19]? Swift/UVOT observed magnitude in Filtmagphot.magfloatnullablee_mag[0.04/0.4]? Uncertainty in magmagstat.error;phot.magfloatnullableB_mag[13.3/18.8] The 3{sigma} upper limitmagphot.mag;stat.maxfloatCRate[0.01/683] Swift/UVOT count ratect/sphot.count;em.UVfloate_CRate[0.05/23] Uncertainty in CRatect/sstat.errorfloatFluxObserved flux; erg/s/cm^2^mW.m**-2phot.flux.densitydoublee_FluxUncertainty in Flux; erg/s/cm^2^mW.m**-2stat.error;phot.fluxdouble