J/A+A/584/A62ivo://CDS.VizieR/J/A+A/584/A62doi:10.26093/cds/vizier.35840062CDSCappellaro E.Botticella M.T.Pignata G.Grado A.Greggio L.,Limatola L.Vaccari M.Baruffolo A.Benetti S.Bufano F.,Capaccioli M.Cascone E.Covone G.De Cicco D.Falocco S.,Della Valle M.Jarvis M.Marchetti L.Napolitano N.R.Paolillo M.,Pastorello A.Radovich M.Schipani P.Spiro S.Tomasella L.Turatto M.2018-08-31T07:57:48Z2016-03-09T12:01:57ZCDS support team

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

cds-question@unistra.frsurveyssupernovaeredshiftedWe describe the observing strategy, data reduction tools, and early results of a supernova (SN) search project, named SUDARE, conducted with the ESO VST telescope, which is aimed at measuring the rate of the different types of SNe in the redshift range 0.2<z<0.8. The search was performed in two of the best studied extragalactic fields, CDFS and COSMOS, for which a wealth of ancillary data are available in the literature or in public archives. We developed a pipeline for the data reduction and rapid identification of transients. As a result of the frequent monitoring of the two selected fields, we obtained light curve and colour information for the transients sources that were used to select and classify SNe by means of an especially developed tool. To accurately characterise the surveyed stellar population, we exploit public data and our own observations to measure the galaxy photometric redshifts and rest frame colours. We obtained a final sample of 117 SNe, most of which are SN Ia (57%) with the remaining ones being core collapse events, of which 44% are type II, 22% type IIn and 34% type Ib/c. To link the transients, we built a catalogue of ~1.3x10^5^ galaxies in the redshift range 0<z<=1, with a limiting magnitude K_AB_=23.5mag. We measured the SN rate per unit volume for SN Ia and core collapse SNe in different bins of redshifts. The values are consistent with other measurements from the literature. The dispersion of the rate measurements for SNe-Ia is comparable to the scatter of the theoretical tracks for single degenerate (SD) and double degenerate (DD) binary systems models, therefore it is not possible to disentangle among the two different progenitor scenarios. However, among the three tested models (SD and the two flavours of DD that either have a steep DDC or a wide DDW delay time distribution), the SD appears to give a better fit across the whole redshift range, whereas the DDC better matches the steep rise up to redshift ~1.2. The DDW instead appears to be less favoured. Unlike recent claims, the core collapse SN rate is fully consistent with the prediction that is based on recent estimates of star formation history and standard progenitor mass range.2015A&A...584A..62Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/584/A62CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/584/A62https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/584/A62http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/584/A62https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/584/A62https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/584/A62http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/584/A62GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/584/A62/tablea2 (List of supernovae)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/584/A62/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/584/A62/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/584/A62/tablea2?GETtext/xml+votable180.050000true53.737083-27.89250.0055555555555555565/8989 6/27245 27247 27256 27258-27259 35935 36106 36128https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/584/A62?format=asciidefaultJ/A+A/584/A62/tablea2List of supernovaeSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSN designationmeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzhost? Host galaxy redshiftsrc.redshift.photfloatnullablee_zhost? Error on zhost (95% lower value) for photometric redshiftstat.errorfloatnullableE_zhost? Error on zhost (95% upper value) for photometric redshiftstat.error;stat.maxfloatnullablen_zhostMethod of redshift measurementmeta.notecharTypeMost probable SN typesrc.classcharPTypeBayesian probability for Typestat.fit.goodnessfloatTempBest fitting templatemeta.id;stat.fitcharzSNSN redshiftsrc.redshift.photfloatAVExtinctionmagphys.absorptionfloatDmuFlux scalingarith.factorfloatTmaxEpoch of maximum (MJD)dtime.epochintchi2n{chi}^2^_n_ valuestat.fit.chi2floatNptNumber of photometric measurementsmeta.numberintNpt2Number of measurements with S/N ratio >2meta.numberintPchi2Integrated right tail probability of the {chi}^2^ distributionstat.fit.goodnessfloatNotesNotes (1)meta.notechar