J/MNRAS/449/1921ivo://CDS.VizieR/J/MNRAS/449/1921doi:10.26093/cds/vizier.74491921CDSPastorello A.Benetti S.Brown P.J.Tsvetkov D.Y.Inserra C.,Taubenberger S.Tomasella L.Fraser M.Rich D.J.Botticella M.T.,Bufano F.Cappellaro E.Ergon M.Gorbovskoy E.S.Harutyunyan A.,Huang F.Kotak R.Lipunov V.M.Magill L.Miluzio M.Morrell N.,Ochner P.Smartt S.J.Sollerman J.Spiro S.Stritzinger M.D.,Turatto M.Valenti S.Wang X.Wright D.E.Yurkov V.V.Zampieri L.,Zhang T.2024-08-14T20:20:54Z2017-12-11T12:50:22ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomybroad-band-photometryultraviolet-photometryWe present ultraviolet, optical and near-infrared data of the Type Ibn supernovae (SNe) 2010al and 2011hw. SN 2010al reaches an absolute magnitude at peak of M_R_=-18.86+/-0.21. Its early light curve shows similarities with normal SNe Ib, with a rise to maximum slower than most SNe Ibn. The spectra are dominated by a blue continuum at early stages, with narrow P-Cygni HeI lines indicating the presence of a slow-moving, He-rich circumstellar medium. At later epochs, the spectra well match those of the prototypical SN Ibn 2006jc, although the broader lines suggest that a significant amount of He was still present in the stellar envelope at the time of the explosion. SN 2011hw is somewhat different. It was discovered after the first maximum, but the light curve shows a double peak. The absolute magnitude at discovery is similar to that of the second peak (M_R_=-18.59+/-0.25), and slightly fainter than the average of SNe Ibn. Though the spectra of SN 2011hw are similar to those of SN 2006jc, coronal lines and narrow Balmer lines are clearly detected. This indicates substantial interaction of the SN ejecta with He-rich, but not H-free, circumstellar material. The spectra of SN 2011hw suggest that it is a transitional SN Ibn/IIn event similar to SN 2005la. While for SN 2010al the spectrophotometric evolution favours a H-deprived Wolf-Rayet progenitor (of WN-type), we agree with the conclusion of Smith et al. that the precursor of SN 2011hw was likely in transition from a luminous blue variable to an early Wolf-Rayet (Ofpe/WN_9_) stage.2015MNRAS.449.1921Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/449/1921CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/339 : Swift/UVOT Serendipitous Source Catalog (Yershov, 2015)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/MNRAS/449/1921https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/449/1921http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/449/1921https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/449/1921https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/449/1921http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/449/1921GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap3.377399441402775e-19 1.2058628298368645e-18UVOpticalInfrareddefaultJ/MNRAS/449/1921/tablea3Calibrated multiband photometry of SN 2010alrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObservation datetime.epoch;obsnullablen_Date[*D] Note on Date (1)meta.notecharJDJulian Date (JD-2455000)dtime.epochfloatl_Umag[>] Limit flag on Umagmeta.code.errorcharUmag? U-band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umag (2)magstat.error;phot.mag;em.opt.Ufloatnullablel_Bmag[>] Limit flag on Bmagmeta.code.errorcharBmag? B-band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmag (2)magstat.error;phot.mag;em.opt.Bfloatnullablel_Vmag[>] Limit flag on Vmagmeta.code.errorcharVmag? V-band magnitude (3)magphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmag (2) (3)magstat.error;phot.mag;em.opt.Vfloatnullablel_Rmag[>] Limit flag on Rmagmeta.code.errorcharRmag? R-band magnitude (3)magphot.mag;em.opt.Rfloatnullablee_Rmag? Uncertainty in Rmag (2) (3)magstat.error;phot.mag;em.opt.Rfloatnullablel_Imag[>] Limit flag on Imagmeta.code.errorcharImag? I-band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Uncertainty in Imag (2)magstat.error;phot.mag;em.opt.Ifloatnullablel_Jmag[>] Limit flag on Jmagmeta.code.errorcharJmag? J-band magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Uncertainty in Jmag (2)magstat.error;phot.mag;em.IR.Jfloatnullablel_Hmag[>] Limit flag on Hmagmeta.code.errorcharHmag? H-band magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Uncertainty in Hmag (2)magstat.error;phot.mag;em.IR.Hfloatnullablel_Kmag[>] Limit flag on Kmagmeta.code.errorcharKmag? K-band magnitudemagphot.mag;em.IR.Kfloatnullablee_Kmag? Uncertainty in Kmag (2)magstat.error;phot.mag;em.IR.KfloatnullableInst[1/19] Instrument identification (4)meta.codeintJ/MNRAS/449/1921/tablea4Calibrated multiband photometry of SN 2011hwrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateObservation datetime.epoch;obsnullablen_Date[*D] Note on Date (1)meta.notecharJDJulian Date (JD-2455000)dtime.epochfloatl_Umag[>] Limit flag on Umagmeta.code.errorcharUmag? U-band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umag (2)magstat.error;phot.mag;em.opt.Ufloatnullablel_Bmag[>] Limit flag on Bmagmeta.code.errorcharBmag? B-band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmag (2)magstat.error;phot.mag;em.opt.Bfloatnullablel_Vmag[>] Limit flag on Vmagmeta.code.errorcharVmag? V-band magnitude (3)magphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmag (2) (3)magstat.error;phot.mag;em.opt.Vfloatnullablel_Rmag[>] Limit flag on Rmagmeta.code.errorcharRmag? R-band magnitude (3)magphot.mag;em.opt.Rfloatnullablee_Rmag? Uncertainty in Rmag (2) (3)magstat.error;phot.mag;em.opt.Rfloatnullablel_Imag[>] Limit flag on Imagmeta.code.errorcharImag? I-band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Uncertainty in Imag (2)magstat.error;phot.mag;em.opt.IfloatnullableInst[1/19] Instrument identification (4)meta.codeintJ/MNRAS/449/1921/tablea5Swift/UVOT band photometry of SNe 2010al and SN 2011hwDateObservation datetime.epoch;obsnullableJDJulian Date (JD-2455000)dtime.epochfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSN[AB] SN designation (1)meta.codecharl_uvw2[>] Limit flag on uvw2meta.code.errorcharuvw2Swift/UVOT uvw2 magnitudemagphot.mag;em.UVfloate_uvw2? Uncertainty in uvw2magstat.errorfloatnullablel_uvm2[>] Limit flag on uvm2meta.code.errorcharuvm2Swift/UVOT uvm2 magnitudemagphot.mag;em.UVfloate_uvm2? Uncertainty in uvm2magstat.errorfloatnullablel_uvw1[>] Limit flag on uvw1meta.code.errorcharuvw1Swift/UVOT uvw1 magnitudemagphot.mag;em.UVfloate_uvw1? Uncertainty in uvw1magstat.errorfloatnullablel_umag[>] Limit flag on umagmeta.code.errorcharumag? Swift/UVOT u-band magnitude (2)magphot.mag;em.opt.Ufloatnullablee_umag? Uncertainty in umag (2)magstat.error;phot.mag;em.opt.Ufloatnullablel_bmag[>] Limit flag on bmagmeta.code.errorcharbmag? Swift/UVOT b-band magnitude (2)magphot.mag;em.opt.Bfloatnullablee_bmag? Uncertainty in bmag (2)magstat.error;phot.mag;em.opt.Bfloatnullablel_vmag[>] Limit flag on vmagmeta.code.errorcharvmag? Swift/UVOT v-band magnitude (2)magphot.mag;em.opt.Vfloatnullablee_vmag? Uncertainty in vmag (2)magstat.error;phot.mag;em.opt.Bfloatnullable