J/ApJ/959/142ivo://CDS.VizieR/J/ApJ/959/142CDSSit T.Kasliwal M.M.Tzanidakis A.De K.Fremling C.Sollerman J.,Gal-Yam A.Miller A.A.Adams S.Aloisi R.Andreoni I.Chu M.,Cook D.Das K.K.Dugas A.Groom S.L.Ho A.Y.Q.Karambelkar V.,Neill J.D.Masci F.J.Medford M.S.Purdum J.Sharma Y.Smith R.,Stein R.Yan L.Yao Y.Zhang C.2026-03-03T20:02:48Z2026-03-03T14:22:24ZCDS support team

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

cds-question@unistra.frsupernovaevisible-astronomyspectroscopyphotometrysurveysSN 1987A was an unusual hydrogen-rich core-collapse supernova originating from a blue supergiant star. Similar blue supergiant explosions remain a small family of events, and are broadly characterized by their long rises to peak. The Zwicky Transient Facility Census of the Local Universe (CLU) experiment aims to construct a spectroscopically complete sample of transients occurring in galaxies from the CLU galaxy catalog. We identify 13 long-rising (>40 days) Type II supernovae from the volume-limited CLU experiment during a 3.5 yr period from 2018 June to 2021 December, approximately doubling the previously known number of these events. We present photometric and spectroscopic data of these 13 events, finding peak r-band absolute magnitudes ranging from -15.6 to -17.5 mag and the tentative detection of BaII lines in nine events. Using our CLU sample of events, we derive a long-rising Type II supernova rate of 1.37_-0.30_^+0.26^x10^-6^Mpc^-3^/yr, ~1.4% of the total core-collapse supernova rate. This is the first volumetric rate of these events estimated from a large, systematic, volume-limited experiment.2023ApJ...959..142Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/959/142CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/363 : The band-merged unWISE Catalog (Schlafly+, 2019)J/MNRAS/395/1409 : Type II-P SN progenitor constraints (Smartt+, 2009)J/A+A/537/A141 : UBVRI light curves of SN 2009E (Pastorello+, 2012)J/ApJ/880/7 : Census of the Local Universe survey. I. (Cook+, 2019)J/ApJ/882/L15 : SN 2018hna photometry & spectroscopy obs. (Singh+, 2019)J/ApJ/905/58 : Local universe with ZTF. I. Ca-rich gap transients (De+, 2020)J/ApJ/895/32 : Zwicky Transient Facility BTS. I. (Fremling+, 2020)http://www.wis-tns.org/ : Transient Name Server (TNS) homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/959/142https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/959/142http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/959/142https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/959/142https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/959/142http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/959/142GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/959/142/table1 (ZTF CLU 13 long-rising SNe II)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/959/142/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/959/142/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/959/142/table1?GETtext/xml+votable180.050000true226.42687560.79555280.0055555555555555566/8553 8565 8688 10445 11232 11482 23146 23815 28275 30034 31464 32422 40316https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/959/142?format=asciiOpticaldefaultJ/ApJ/959/142/table1ZTF CLU 13 long-rising SNe IIGalHost galaxy namemeta.id.parentcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharONameOther name (ZTF)meta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova (SN) designationmeta.id;meta.maincharprimaryRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainz[0.002/0.05] Redshift from NEDsrc.redshiftfloatNspNumber of spectral flux measurements for this SNmeta.numberintnullableNlcNumber of photometric measurements for this SNmeta.numberintnullablespInteractive spectrum plotmeta.ref.urlcharlcInteractive LCs plotmeta.ref.urlcharJ/ApJ/959/142/optlcsOptical light curves (Data behind Figures 2 and 3)SNSupernova namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Datedtime.epochdoubleZTFmag[13.99/29.9] Apparent magnitude in Filtmagphot.mag;em.optfloate_ZTFmag[0.001/0.4]? Uncertainty on ZTFmagmagstat.error;phot.magfloatnullableFiltFilter used ("ztfg", "ztfr", "ztfi", "sdssg", "sdssr", "sdssi")instr.setup;instr.filtercharmagLimUpper limit on magnitude ("True" or "False")meta.notecharJ/ApJ/959/142/optspOptical spectra (Data behind Figures 6, 7 and 8)InstInstrument used ("DBSP", "LRIS", "SEDM")instr.setupcharSNSupernova namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintphase[-69/143] Supernova phase in observer days; preceding -/+ indicates pre/post-peakdtime.phaseintlambda[3059/10311] Observed wavelength; angstroms0.1nmem.wlfloatFlux[-8.03/13.3] Scaled fluxphot.flux;arith.ratiofloat