J/MNRAS/454/95ivo://CDS.VizieR/J/MNRAS/454/95doi:10.26093/cds/vizier.74540095CDSMorales-Garoffolo A.Elias-Rosa N.Bersten M.Jerkstrand A.,Taubenberger S.Benetti S.Cappellaro E.Kotak R.Pastorello A.,Bufano F.Dominguez R.M.Ergon M.Fraser M.Gao X.Garcia E.,Howell D.A.Isern J.Smartt S.J.Tomasella L.Valenti S.2024-08-15T20:16:30Z2016-09-15T15:03:21ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomybroad-band-photometrysloan-photometryWe present optical and near-infrared observations of the type IIb supernova (SN) 2011fu from a few days to ~300d after explosion. The SN presents a double-peaked light curve (LC) similar to that of SN 1993J, although more luminous and with a longer cooling phase after the primary peak. The spectral evolution is also similar to SN 1993J's, with hydrogen dominating the spectra to ~40d, then helium gaining strength, and nebular emission lines appearing from ~60d post-explosion. The velocities derived from the P-Cygni absorptions are overall similar to those of other type IIb SNe. We have found a strong similarity between the oxygen and magnesium line profiles at late times, which suggests that these lines are forming at the same location within the ejecta. The hydrodynamical modelling of the pseudo-bolometric LC and the observed photospheric velocities suggest that SN 2011fu was the explosion of an extended star (R~450R_{sun}_), in which 1.3x10^51^erg of kinetic energy were released and 0.15M_{sun}_ of 56Ni were synthesized. In addition, a better reproduction of the observed early pseudo-bolometric LC is achieved if a more massive H-rich envelope than for other type IIb SNe is considered (0.3M_{sun}_). The hydrodynamical modelling of the LC and the comparison of our late-time spectra with nebular spectral models for type IIb SNe, point to a progenitor for SN 2011fu with a Zero Age Main Sequence (ZAMS) mass of 13-18M_{sun}_.2015MNRAS.454...95Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/454/95CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/454/95https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/454/95http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/454/95https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/454/95https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/454/95http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/454/95GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap8.650015785639275e-20 6.118840631666147e-19OpticalInfrareddefaultJ/MNRAS/454/95/tablea1Characteristics of the instruments used to acquire the photometric data of SN 2011fuInstInstrumentmeta.id;instrcharTelTelescopemeta.id;instr.telcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFoVField of viewphys.area;instrcharScalePixel scalearcsec/pixinstr.scale;instr.pixelfloatFiltFiltersmeta.code;instr.filtercharKeyKey for observationmeta.codecharJ/MNRAS/454/95/tablea2List of spectroscopic observations of SN 2011furecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs.dateObservation datetime.epoch;obsnullableJDJulian date (JD-2400000)dtime.epochfloatPhasePhase with respect to our adopted explosion epoch JD=2455824.5+/-0.7dtime.phasefloatTelTelescope+instrumentinstrcharGrismGrism+filtermeta.code;instr.filtercharRangeWavelenght range in Angstroeminstr.bandwidthcharResResolving power (1)pos.angResolutioncharJ/MNRAS/454/95/tableb1Optical Bessell photometry of SN 2011fuVmag? Bessell V magnitude S-correctedmagphot.mag;em.opt.VfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs.dateObservation datetime.epoch;obscharJDJulian date (JD-2400000)dtime.epochfloatPhasePhase in days with respect to the adopted explosion date JD=2455824.5+/-0.7dtime.phasefloatUmag? Bessell U magnitude not S-correctedmagphot.mag;em.opt.Ufloatnullablee_Umag? rms uncertainty on Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag? Bessell B magnitude S-correctedmagphot.mag;em.opt.Bfloatnullablee_Bmag? rms uncertainty on Bmagmagstat.error;phot.mag;em.opt.Bfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatnullableRmag? Bessell R magnitude S-correctedmagphot.mag;em.opt.Rfloatnullablee_Rmag? rms uncertainty on Rmagmagstat.error;phot.mag;em.opt.Rfloatnullablen_Rmag[*] * when Sloan r magnitude in Rmagmeta.notecharImag? Bessell I magnitude S-correctedmagphot.mag;em.opt.Ifloatnullablee_Imag? rms uncertainty on Imagmagstat.error;phot.mag;em.opt.Ifloatnullablen_Imag[*] * when Sloan i magnitude in Imagmeta.notecharKeyKey for observationmeta.codecharJ/MNRAS/454/95/tableb2Optical Sloan photometry of SN 2011fu in the Vega systemrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs.dateObservation datetime.epoch;obscharJDJulian date (JD-2400000)dtime.epochfloatPhasePhase in days with respect to the adopted explosion date JD=2455824.5+/-0.7dtime.phasefloatumag? Sloan u magnitude (Vega)magphot.mag;em.opt.Ufloatnullablee_umag? rms uncertainty on umagmagstat.error;phot.mag;em.opt.Ufloatnullablegmag? Sloan g magnitude (Vega)magphot.mag;em.opt.Rfloatnullablee_gmag? rms uncertainty on gmagmagstat.error;phot.mag;em.opt.Bfloatnullablezmag? Sloan z magnitude (Vega)magphot.mag;em.opt.Ifloatnullablee_zmag? rms uncertainty on zmagmagstat.error;phot.mag;em.opt.IfloatnullableKeyKey for observationmeta.codecharJ/MNRAS/454/95/tableb3NIR photometry of SN 2011furecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs.dateObservation datetime.epoch;obscharJDJulian date (JD-2400000)dtime.epochfloatPhasePhase in days with respect to the adopted explosion date JD=2455824.5+/-0.7dtime.phasefloatJmag? 2MASS J magnitude (Vega)magphot.mag;em.IR.Jfloatnullablee_Jmag? rms uncertainty on Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H magnitude (Vega)magphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks magnitude (Vega)magphot.mag;em.IR.Kfloatnullablee_Ksmag? rms uncertainty on Ksmagmagstat.error;phot.mag;em.IR.KfloatnullableKeyKey for observationmeta.codecharJ/MNRAS/454/95/tableb4Johnson-Cousins optical and 2MASS NIR magnitudes for the stellar sequence used in the calibration process of SN 2011fu's photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar numbermeta.id;meta.mainintUmagJohnson U magnitudemagphot.mag;em.opt.Ufloate_Umagrms uncertainty on Umagmagstat.error;phot.mag;em.opt.UfloatBmagJohnson B magnitudemagphot.mag;em.opt.Bfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatVmagJohnson V magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatRmagCousins R magnitudemagphot.mag;em.opt.Rfloate_Rmagrms uncertainty on Rmagmagstat.error;phot.mag;em.opt.RfloatImagCousins I magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty on Imagmagstat.error;phot.mag;em.opt.IfloatJmag? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? rms uncertainty on Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? rms uncertainty on Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? rms uncertainty on Ksmagmagstat.error;phot.mag;em.IR.Kfloatnullablen_e_Ksmag[a] a: no value for the uncertainty is given by the 2-MASS cataloguemeta.notecharJ/MNRAS/454/95/tableb5Sloan Vega magnitudes for the stellar sequence used in the calibration process of SN 2011fu's photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar numbermeta.id;meta.mainintumag? Sloan u magnitude (Vega)magphot.mag;em.opt.Ufloatnullablee_umag? rms uncertainty on umagmagstat.error;phot.mag;em.opt.Ufloatnullablegmag? Sloan g magnitude (Vega) (1)magphot.mag;em.opt.Bfloatnullablee_gmag? rms uncertainty on gmagmagstat.error;phot.mag;em.opt.BfloatnullablermagSloan r magnitude (Vega)magphot.mag;em.opt.Rfloate_rmagrms uncertainty on rmagmagstat.error;phot.mag;em.opt.RfloatimagSloan i magnitude (Vega)magphot.mag;em.opt.Ifloate_imagrms uncertainty on imagmagstat.error;phot.mag;em.opt.IfloatzmagSloan z magnitude (Vega)magphot.mag;em.opt.Ifloate_zmagrms uncertainty on zmagmagstat.error;phot.mag;em.opt.Ifloat