J/A+A/526/A28ivo://CDS.VizieR/J/A+A/526/A28doi:10.26093/cds/vizier.35260028CDSOestman L.Nordin J.Goobar A.Amanullah R.Smith M.Sollerman J.,Stanishev V.Stritzinger M.D.Bassett B.A.Davis T.M.Edmondson E.,Frieman J.A.Garnavich P.M.Lampeitl H.Leloudas G.Marriner J.,Nichol R.C.Romer K.Sako M.Schneider D.P.Zheng C.2017-06-19T07:58:18Z2011-06-24T15:13:38ZCDS support team

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

cds-question@unistra.frsupernovaesurveysspectroscopyThe Sloan Digital Sky Survey II (SDSS-II) Supernova Survey, conducted between 2005 and 2007, was designed to detect a large number of type Ia supernovae around z~0.2, the redshift "gap" between low-z and high-z supernova searches. The survey has provided multi-band (ugriz) photometric lightcurves for variable targets, and supernova candidates were scheduled for spectroscopic observations, primarily to provide supernova classification and accurate redshifts. We present supernova spectra obtained in 2006 and 2007 using the New Technology Telescope (NTT) and the Nordic Optical Telescope (NOT). We provide an atlas of supernova spectra in the range z=0.03-0.32 that complements the well-sampled lightcurves from SDSS-II in the forthcoming three-year SDSS supernova cosmology analysis. The sample can, for example, be used for spectral studies of type Ia supernovae, which are critical for understanding potential systematic effects when supernovae are used to determine cosmological distances. The spectra were reduced in a uniform manner, and special care was taken in estimating the uncertainties for the different processing steps. Host-galaxy light was subtracted when possible and the supernova type fitted using the SuperNova IDentification code (SNID). We also present comparisons between spectral and photometric dating using SALT lightcurve fits to the photometry from SDSS-II, as well as the global distribution of our sample in terms of the lightcurve parameters: stretch and colour.2011A&A...526A..28Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/526/A28CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/526/A28https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/526/A28http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/526/A28https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/526/A28https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/526/A28http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/526/A28GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/526/A28/appendix (Information about the observations, spectroscopic typing and redshift determination and spectral quality of 238 individual objects)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/526/A28/appendix?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/526/A28/appendix?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/526/A28/appendix?GETtext/xml+votable180.050000true317.49541670.407780.0055555555555555565/4457 4506 4517-4518 4758 7513 6/0 12288 12290 17407 17663 17725-17726 17749-17750 17752 17755-17756 17761 17764 17767-17768 17771 17774 17806 17809-17812 17814 17816 17818 17825 17827 17832-17833 17840-17841 17843 17981 17983 18004 18006 18011 18013 18017 18019-18021 18023 18030 18032-18034 18062-18063 18067 18076 18081-18084 18089-18090 18092-18093 18097 18687 18750 18766 18769 18772 18777 18786-18787 18789 18791-18792 18794-18796 18800 18835-18837 18843 18849 18851-18852 18854-18855 18860 18865-18867 19021 19023 19029-19031 19036 19042-19043 19045-19047 19052 19056-19057 19087 19089-19091 19093 19097 19099-19101 19105 19108 19115-19116 19120 19137 19457 23144 23187 23190-23193 23197 23206 23209 23211-23212 23217-23218 23232 30013 30031 30033-30034 30036-30038 30041 30044-30045 30050 30056 30065-30066 30100-30101 30108 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/526/A28?format=asciiOpticaldefaultJ/A+A/526/A28/appendixInformation about the observations, spectroscopic typing and redshift determination and spectral quality of 238 individual objectsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[12778/22284] Source ID number, <SDSS-II SNNNNNN> in Simbadmeta.id;meta.mainintSPIDSpectrum SPID (1)meta.id;obsintSNIAU name (YYYYaa)meta.idcharTel[NOT NTT] Telescope usedinstr.setupcharSlitSlit widtharcsecspect.line.widthfloatTexpExposure timestime.duration;obs.exposureintAirAirmassobs.airMassfloatSeeSeeing (2)arcsecinstr.obsty.seeingfloatSimbadSimbad column added by the CDSmeta.refcharType1SDSS SN type (3)src.spTypecharType2NTT/NOT SN type (4)src.spTypecharLC? Number of days in rest frame from B-band maximum obtained from the lightcurve (5)dtime.agefloatnullablee_LC? Error on LCdstat.errorfloatnullablen_LC[p] Note on LC (6)meta.notecharSNID? Number of days in rest frame from B-band maximum obtained from SNID (7)dtime.intervalfloatnullablee_SNID? Error on SNIDdstat.errorfloatnullableze? SDSS redshift (8)src.redshiftfloatnullablee_ze? Error on zestat.errorfloatnullablez? SNID redshiftsrc.redshiftfloatnullablee_z? Error on zstat.error;src.redshiftfloatnullableNotesNotes (9)meta.notecharHost[0/1]? Host contamination (10)stat.fit.paramfloatnullablen_Host[e] e when estimation based on an extrapolation of the photometrymeta.notecharSloss[0/1] Estimated maximum differential slit loss due to atmospheric refraction affecting the SN light in the wavelength region 4000-8000{AA} (observed frame)stat.fit.paramfloat_RAPosition (telescope pointing position extracted from the headers of the FITS spectra) (right ascension part)degpos.eq.ra;meta.main_DEPosition (telescope pointing position extracted from the headers of the FITS spectra) (declination part)degpos.eq.dec;meta.main