J/A+A/555/A142ivo://CDS.VizieR/J/A+A/555/A142doi:10.26093/cds/vizier.35550142CDSInserra C.Pastorello A.Turatto M.Pumo M.L.Benetti S.Cappellaro E.,Botticella M.T.Bufano F.Elias-Rosa N.Harutyunyan A.Taubenberger S.,Valenti S.Zampieri L.2019-03-21T05:52:47Z2013-07-16T08:34:27ZCDS support team

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

cds-question@unistra.frsupernovaespectroscopyCore-collapse Supernovae (CC-SNe) descend from progenitors more massive than about 8M_{sun}_. Because of the young age of the progenitors, the ejecta may eventually interact with the circumstellar medium (CSM) via highly energetic processes detectable in the radio, X-ray, ultraviolet (UV) and, sometimes, in the optical domains. In this paper we present ultraviolet, optical and near infrared observations of five type II SNe, namely SNe 2009dd, 2007pk, 2010aj, 1995ad, and 1996W. Together with few other SNe they form a group of moderately luminous type II events. We investigate the photometric similarities and differences among these bright objects. We also attempt to characterise them by analysing the spectral evolutions, in order to find some traces of CSM-ejecta interaction. We collected photometry and spectroscopy with several telescopes in order to construct well-sampled light curves and spectral evolutions from the photospheric to the nebular phases. Both photometry and spectroscopy indicate a degree of heterogeneity in this sample. Modelling the data of SNe 2009dd, 2010aj and 1995ad allows us to constrain the explosion parameters and the properties of the progenitor stars. The light curves have luminous peak magnitudes (-16.95<M_B}_-18.70). The ejected masses of ^56^Ni for three SNe span a wide range of values (2.8x10^-2^M_{sun}<M(^56^Ni)<1.4x10^-1^M_{sun}_), while for a fourth (SN2010aj) we could determine a stringent upper limit (7x10^-3^M_{sun}_). Clues of interaction, such as the presence of high velocity (HV) features of the Balmer lines, are visible in the photospheric spectra of SNe 2009dd and 1996W. For SN2007pk we observe a spectral transition from a type IIn to a standard type II SN. Modelling the observations of SNe 2009dd, 2010aj and 1995ad with radiation hydrodynamics codes, we infer kinetic plus thermal energies of about 0.2-0.5 foe, initial radii of 2-5x10^13^cm and ejected masses of ~5.0-9.5M_{sun}_. These values suggest moderate-mass, super-asymptotic giant branch (SAGB) or red super-giants (RSG) stars as SN precursors, in analogy with other luminous type IIP SNe 2007od and 2009bw.2013A&A...555A.142Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/555/A142CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)II/256 : Sternberg Supernova Catalogue, 2004 version (Tsvetkov+, 2004)J/A+A/538/A120 : A unified supernova catalogue (Lennarz+, 2012)J/A+A/544/A81 : Supernovae and their hosts in the SDSS DR8 (Hakobyan+, 2012)J/MNRAS/412/1419 : Nearby supernova rates (Leaman+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/555/A142https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/555/A142http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/555/A142https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/555/A142https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/555/A142http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/555/A142GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/555/A142/sn (List of studied supernovae)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/555/A142/sn?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/555/A142/sn?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/555/A142/sn?GETtext/xml+votable180.050000true90.2755417-23.67472220.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/555/A1426/2252 10991 20720 25344 25431https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/555/A142?format=asciidefaultJ/A+A/555/A142/table1Instrumental configurationsNyCCD size along yphys.angSize;instr.detintCamCamerameta.id;instrcharNxCCD size along xpixphys.angSize;instr.detintCCDCCD designationmeta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelTelescope (1)meta.id;instr.telcharMir[0.3/3.6] Primary mirror diametermphys.size;instr.telfloatn_Cam[+] + for Instruments used until 1998meta.notecharScalePixel scalearcsec/pixinstr.scale;instr.pixelfloatFieldfield of view (arcmin)arcminphys.angSize;srccharJ/A+A/555/A142/snList of studied supernovaerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova name (YYYYaa)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainHostHost galaxymeta.id.parentcharMTypeHost galaxy typemeta.notechart.expExplosion epoch (JD)dtime.epochdoublee_t.exprms uncertainty on Expdstat.errorintt.peakLight curve peak date (JD)dtime.epochinte_t.peakrms uncertainty on Peakdstat.errorintSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/555/A142/tablea6Journal of spectroscopic observations of the SNePhase[5/510] Phase with respect to explosion epochdtime.phasefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova name (YYYYaa)meta.id;meta.maincharDateObservation datetime.epoch;obsnullableJDJulian date of observation (JD-2400000)dtime.epochfloatInstInstrumental configuration (as in Table1)phys.atmol.configuration;instr.setupcharlam0[2850/8660] Lower value of wavelength range0.1nminstr.bandwidthintlam1[5000/13480] Upper value of wavelength range0.1nminstr.bandwidthintResSpectral resolution(s) (1)spect.resolutioncharspPlot of spectrummeta.ref.urlcharSpFileName of the spectrum FITS file in subdirectory spmeta.id;meta.fitschar