J/A+A/691/A90ivo://CDS.VizieR/J/A+A/691/A90doi:10.26093/cds/vizier.36910090CDSZeng X.Li S.Wang X.Zheng S.Howell D.A.Bostroem K.A.McCully C.,Esamdin A.Liu J.Iskandar A.Zhang J.Bird S.A.Zhang T.Wang L.,Li Y.Zhang J.2025-02-26T20:01:57Z2024-10-31T15:23:46ZCDS support team

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

cds-question@unistra.frsupernovaevisible-astronomybroad-band-photometrysloan-photometryIn this paper, we present an extensive analysis of SN 2021 wuf, a transition between Ia-norm and SN 1991T-like supernovae, which exploded at the periphery of the tidal bridge between the pair galaxy NGC 6500 and NGC 6501 with a redshift of z=0.01. Our observations, ranging from -21 to +276 days relative to the B-band maximum light, reveal that SN 2021wuf exhibits properties akin to normal SNe Ia, with a peak absolute magnitude of Mmax(B) -19.49+/-0.10mag and a post -peak decline rate of dm15(B) 1.11+/-0.06mag. The peak bolometric luminosity of this SN is estimated as 1.58x10^43^erg/s, corresponding to a ^56^Ni mass of MNi 0.64+/-0.05M_{sun}_. The spectral features, including high-velocity SiII 6355 lines, a plateau in the SiII 6355 velocity evolution and the nickel-to-iron ratio in the nebular phase, suggest a potential pulsating delayed detonation mechanism. The absence of intermediate mass elements in the early phase and the high photospheric temperature, as inferred from the line-strength ratio of SiII 5972 to SiII 6355 (named as R(SiII)), further support this classification.2024A&A...691A..90Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/691/A90CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/691/A90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/691/A90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/691/A90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/691/A90https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/691/A90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/691/A90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap3.322582951404819e-19 6.118840631666147e-19OpticaldefaultJ/A+A/691/A90/table3Optical photometric observations of SN 2021wuf obtained from LCO telescopesrmag? r band magnitudemagphot.mag;em.opt.Rfloatnullablee_rmag? Uncertainty in rmagmagstat.error;phot.magfloatnullableimag? i band magnitudemagphot.mag;em.opt.Ifloatnullablee_imag? Uncertainty in imagmagstat.error;phot.magfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Date of observation (JD=2400000.5)dtime.epochdoubleBmag? B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Uncertainty in Bmagmagstat.error;phot.magfloatnullableVmag? V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in Vmagmagstat.error;phot.magfloatnullableUmag? U band magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? Uncertainty in Umagmagstat.error;phot.magfloatnullablegmag? g band magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag? Uncertainty in gmagmagstat.error;phot.magfloatnullable