J/MNRAS/487/832ivo://CDS.VizieR/J/MNRAS/487/832doi:10.26093/cds/vizier.74870832CDSButa R.J.Keel W.C.2024-08-19T20:19:16Z2020-08-31T17:41:58ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryvisible-astronomybroad-band-photometryBroadband BVRI light curves of SN 2017eaw in NGC 6946 reveal the classic elements of a Type II-P supernova. The observations were begun on 16 May 2017 (UT), approximately 1 d after the discovery was announced, and the photometric monitoring was carried out over a period of nearly 600d. The light curves show a well-defined plateau and an exponential tail which curves slightly at later times. An approximation to the bolometric light curve is derived and used to estimate the amount of ^56^Ni created in the explosion; from various approaches described in the literature, we obtain M(^56^Ni)=0.115_-0.022_^+0.027^M_{sun}_. We also estimate that 43 per cent of the bolometric flux emitted during the plateau phase is actually produced by the ^56^Ni chain. Other derived parameters support the idea that the progenitor was a red supergiant.2019MNRAS.487..832Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/487/832CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/487/832https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/487/832http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/487/832https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/487/832https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/487/832http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/487/832GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap2.367228618189496e-19 4.920466254354166e-19OpticalInfrareddefaultJ/MNRAS/487/832/table3Local standard stars around NGC 6946B-VB-V color indexmagphot.color;em.opt.B;em.opt.VfloatV-RV-R color indexmagphot.color;em.opt.V;em.opt.RfloatR-IR-I color indexmagphot.color;em.opt.R;em.opt.IfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNo[1/62] Identification number (1)meta.id;meta.mainintVmagV-band magnitudemagphot.mag;em.opt.Vfloate_VmagMean error on Vmagmagstat.error;phot.magfloate_B-VMean error on B-Vmagstat.error;phot.color;em.opt.Bfloate_V-RMean error on V-Rmagstat.error;phot.color;em.opt.Vfloate_R-IMean error on R-Imagstat.error;phot.color;em.opt.RfloatJ/MNRAS/487/832/table4Photometry of SN 2017eawrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObs.dateUniversal Time date (MM-DD-YYYY)time.epochnullablePhaseNunber of days since explosion (1)dtime.phasefloatBmag? Johnson B-band magnitudemagphot.mag;em.opt.BfloatnullableVmag? Johnson V-band magnitudemagphot.mag;em.opt.VfloatnullableRmag? Cousins R-band magnitudemagphot.mag;em.opt.RfloatnullableImag? Cousins I-band magnitudemagphot.mag;em.opt.Ifloatnullablee_Bmag? mean error on Bmagmagstat.error;phot.magfloatnullablee_Vmag? mean error on Vmagmagstat.error;phot.magfloatnullablee_Rmag? mean error on Rmagmagstat.error;phot.magfloatnullablee_Imag? mean error on Imagmagstat.error;phot.magfloatnullableTelTelescope/facilities used (2)instr.setupchar