J/ApJ/938/73ivo://CDS.VizieR/J/ApJ/938/73doi:10.26093/cds/vizier.19380073CDSPellegrino C.Howell D.A.Terreran G.Arcavi I.Bostroem K.A.,Brown P.J.Burke J.Dong Y.Gilkis A.Hiramatsu D.Hosseinzadeh G.,McCully C.Modjaz M.Newsome M.Gonzalez E.P.Pritchard T.A.,Sand D.J.Valenti S.Williamson M.2025-02-12T20:09:20Z2024-10-08T12:51:15ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomybroad-band-photometryspectroscopyWe present a sample of Type Icn supernovae (SNe Icn), a newly discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). This sample is the largest collection of SNe Icn to date and includes observations of two published objects (SN 2019hgp and SN 2021csp) and two objects not yet published in the literature (SN 2019jc and SN 2021ckj). The SNe Icn display a range of peak luminosities, rise times, and decline rates, as well as diverse late-time spectral features. To investigate their explosion and progenitor properties, we fit their bolometric light curves to a semianalytical model consisting of luminosity inputs from circumstellar interaction and radioactive decay of ^56^Ni. We infer low ejecta masses (<~2M_{sun}_) and ^56^Ni masses (<~0.04M_{sun}_) from the light curves, suggesting that normal stripped-envelope supernova (SESN) explosions within a dense CSM cannot be the underlying mechanism powering SNe Icn. Additionally, we find that an estimate of the star formation rate density at the location of SN2019jc lies at the lower end of a distribution of SESNe, in conflict with a massive star progenitor of this object. Based on its estimated ejecta mass, 56Ni mass, and explosion site properties, we suggest a low-mass, ultra-stripped star as the progenitor of SN 2019jc. For other SNe Icn, we suggest that a Wolf-Rayet star progenitor may better explain their observed properties. This study demonstrates that multiple progenitor channels may produce SNe Icn and other interaction-powered transients.2022ApJ...938...73Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/938/73CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/183 : UBVRI Photometric Standards (Landolt 1992)J/other/Sci/337.444 : RV curves of Galactic massive O stars (Sana+, 2012)J/MNRAS/436/774 : Core collapse supernovae (type Ibc) (Eldridge+, 2013)J/ApJ/769/39 : SNIbn PS1-12sk optical and NIR light curves (Sanders+, 2013)J/ApJ/794/23 : Pan-STARRS1 transients optical photometry (Drout+, 2014)J/A+A/574/A60 : Light curve templates of SNe Ib/c from SDSS (Taddia+, 2015)J/MNRAS/459/3939 : Type II supernova light curves (Valenti+, 2016)J/ApJ/851/107 : iPTF 16asu photometry follow-up (Whitesides+, 2017)J/other/Sci/362.201 : iPTF 14gqr (SN 2014ft) photometry (De+, 2018)J/ApJ/855/107 : PMAS SN hosts COmpilation (PISCO) (Galbany+, 2018)J/ApJ/887/169 : UV-Opt light curves of the type Ic SN 2018gep (Ho+, 2019)J/A+A/624/A66 : Massive runaway and walkaway stars models (Renzo+, 2019)J/ApJ/903/43 : Kinematics of OB stars (Dorigo Jones+, 2020)J/AJ/160/271 : Galaxies with ALFALFA-SDSS (Durbala+, 2020)J/ApJ/900/46 : UV, opt. & IR LCs of supernova SN2019dge (Yao+, 2020)J/ApJ/915/121 : Type Ic SN2018gep phot. & sp. follow-up (Pritchard+, 2021)J/ApJS/255/29 : PTF core-collapse SN host-galaxy sample. I. (Schulze+, 2021)J/ApJ/910/42 : LCs & spectroscopic observations of AT2018cow (Xiang+, 2021)J/other/Nat/601.201 : Photometry of SN 2019hgp (Gal-Yam+, 2022)J/ApJ/927/10 : Photometry follow-up of 3 core-collapse SNe (Irani+, 2022)J/ApJ/926/125 : Fast-evolving SNIbn with LCO LCs & sp. (Pellegrino+, 2022)J/ApJ/927/180 : Type Icn SN2021csp photometry & spectra (Perley+, 2022)http://www.wiserep.org/ : WISeREP homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/938/73https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/938/73http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/938/73https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/938/73https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/938/73http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/938/73GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/938/73/table12 (SN Icn discovery information (Table 1) and SN Icn light-curve properties (Table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/938/73/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/938/73/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/938/73/table12?GETtext/xml+votable180.050000true328.9208038924.905741940.0055555555555555566/9873 12764 26076 40811https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/938/73?format=asciiOpticalInfrareddefaultJ/ApJ/938/73/table12SN Icn discovery information (Table 1) and SN Icn light-curve properties (Table 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN identifier (YYYYaaa)meta.id;meta.maincharprimaryz[0.019/0.15] Redshiftsrc.redshiftdoubleRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainMJD-last[58489.27/59254.53] Last date of non-detection, MJDdtime.epochdoubleMJD-first[58491.2/59256.5] First date of detection, MJDdtime.epochdoubleInstDiscovery group ("ATLAS" or "ZTF")meta.id;instr.obstycharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchart1/2rTime to rise from half the peak luminosity to peak; t_1/2,rise_ (1)dtime.intervalfloate_t1/2rt1/2r uncertaintydstat.error;time.intervalfloattmaxTime of g-band peak brightness; t_max,g_ (1)dtime.epochfloate_tmaxtmax uncertaintydstat.error;time.epochfloatgMagPkg-band peak absolute magnitude; M_peak,g_; K-correctedmagphys.magAbs;stat.max;em.opt.Bfloate_gMagPkgMagPk uncertaintymagstat.error;phys.magAbs;em.opt.Bfloatt1/2dTime to decline from peak to half the peak brightness; t_1/2,decline_ (1)dtime.intervalfloate_t1/2dt1/2d uncertaintydstat.error;time.intervalfloatNpNumber of photometric measurements for this SN (link to table A1)meta.numberintnullableLCInteractive LC Plotmeta.ref.urlcharBbBlackbody parameter results for this SN (link to table A2)meta.numberintnullablespNumber of log of spectroscopic observations for this SN (link to table A3)meta.numberintnullableJ/ApJ/938/73/tablea1Optical photometrySNSN identifier (YYYYaaa)meta.id;meta.mainchare_imag[0.04/0.5]? Uncertainty in imagmagstat.error;phot.mag;em.opt.IfloatnullableTelTelescope ("LCO", "ZTF" or "ATLAS")meta.id;instr.telchare_Umag[0.04/0.4]? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[58491.2/59311] Modified Julian date of observation (JD-2400000.5)dtime.epochfloatUmag[16.6/19.5]? U-band Vega magnitudemagphot.mag;em.opt.UfloatnullableBmag[17.5/23.7]? B-band Vega magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag[0.03/0.5]? Uncertainty in Bmagmagstat.error;phot.mag;em.opt.Bfloatnullablegmag[17.4/22.4]? g-band AB magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag[0.01/0.4]? Uncertainty in gmagmagstat.error;phot.mag;em.opt.Bfloatnullablecmag[18.0]? c-band AB magnitudemagphot.mag;em.optfloatnullablee_cmag[0.15]? Uncertainty in cmagmagstat.error;phot.mag;em.optfloatnullableVmag[17.5/22.6]? V-band Vega magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag[0.03/0.6]? Uncertainty in Vmagmagstat.error;phot.mag;em.opt.Vfloatnullablermag[17.5/21.9]? r-band AB magnitudemagphot.mag;em.opt.Rfloatnullablee_rmag[0.02/0.4]? Uncertainty in rmagmagstat.error;phot.mag;em.opt.Rfloatnullableomag[17.7/18.4]? o-band AB magnitudemagphot.mag;em.optfloatnullablee_omag[0.08/0.3]? Uncertainty in omagmagstat.error;phot.mag;em.optfloatnullableimag[17.7/22.9]? i-band AB magnitudemagphot.mag;em.opt.IfloatnullableJ/ApJ/938/73/tablea2Blackbody parametersTeff[6000/28700] Effective temperatureKphys.temperature.effectiveintE_Teff[200/6900] Upper uncertainty, TeffKstat.error;stat.max;phys.temperature.effectiveinte_logLbol[0.04/0.3] Lower uncertainty, logLbollog(1e-07W)stat.error;stat.min;phys.luminosityfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN identifier (YYYYaaa)meta.id;meta.maincharPhase[-5.01/30.3] Phase relative to g-band maximum lightdtime.phasefloatlogLbol[42/44.2] log, bolometric luminosity, erg/slog(1e-07W)phys.luminosityfloatE_logLbol[0.04/0.6] Upper uncertainty, logLbollog(1e-07W)stat.error;stat.max;phys.luminosityfloate_Teff[100/6900] Lower uncertainty, TeffKstat.error;stat.min;phys.temperature.effectiveintlogRbb[14.2/15.3] log, black-body radiuscmphys.size.radiusfloatE_logRbb[0.01/0.3] Upper uncertainty, logRbbcmstat.error;stat.max;phys.size.radiusfloate_logRbb[0.01/0.5] Lower uncertainty, logRbbcmstat.error;stat.min;phys.size.radiusfloatJ/ApJ/938/73/tablea3Log of spectroscopic observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN identifier (YYYYaaa)meta.id;meta.maincharDateDate of observation (UT)stime.epochnullablePhase[-2.4/22.4] Phase relative to g-band maximum lightdtime.phasefloatInstFacility/Instrumentmeta.id;instrcharExp[1200/3600] Exposure timestime.duration;obs.exposureintRangeWavelength range in {AA}0.1nmem.wlcharFileName of the FITS file in subdirectory "fits"; as downloaded from WISeREP (2012PASP..124..668Y)meta.id;meta.fits;meta.filecharfitsDownload the FITS filemeta.ref.urlcharspInteractive spectrum plotmeta.ref.urlchar