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Optical and Near-infrared Observations of the Nearby SN Ia 2017cbv

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cris.lastimport.scopus2024-02-12T19:50:11Z
dc.abstract.enSupernova (SN) 2017cbv in NGC 5643 is one of a handful of Type Ia supernovae (SNe Ia) reported to have excess blue emission at early times. This paper presents extensive BVRIYJHK<SUB>s</SUB>-band light curves of SN 2017cbv, covering the phase from -16 to +125 days relative to B-band maximum light. The SN 2017cbv reached a B-band maximum of 11.710 ± 0.006 mag, with a postmaximum magnitude decline of Δm<SUB>15</SUB>(B) = 0.990 ± 0.013 mag. The SN suffered no host reddening based on Phillips intrinsic color, the Lira-Phillips relation, and the CMAGIC diagram. By employing the CMAGIC distance modulus μ = 30.58 ± 0.05 mag and assuming H<SUB>0</SUB> = 72 km s<SUP>-1</SUP> Mpc<SUP>-1</SUP>, we found that 0.73 M<SUB>⊙</SUB> <SUP>56</SUP>Ni was synthesized during the explosion of SN 2017cbv, which is consistent with estimates using reddening- and distance-free methods via the phases of the secondary maximum of the near-IR- (NIR-) band light curves. We also present 14 NIR spectra from -18 to +49 days relative to the B-band maximum light, providing constraints on the amount of swept-up hydrogen from the companion star in the context of the single degenerate progenitor scenario. No Paβ emission feature was detected from our postmaximum NIR spectra, placing a hydrogen mass upper limit of 0.1 M<SUB>⊙</SUB>. The overall optical/NIR photometric and NIR spectral evolution of SN 2017cbv is similar to that of a normal SN Ia, even though its early evolution is marked by a flux excess not seen in most other well-observed normal SNe Ia. We also compare the exquisite light curves of SN 2017cbv with some M<SUB>ch</SUB> delayed detonation models and sub-M<SUB>ch</SUB> double detonation models.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorWang, Lingzhi
dc.contributor.authorContreras, Carlos
dc.contributor.authorHu, Maokai
dc.contributor.authorHamuy, Mario A.
dc.contributor.authorHsiao, Eric Y.
dc.contributor.authorSand, David J.
dc.contributor.authorAnderson, Joseph P.
dc.contributor.authorAshall, Chris
dc.contributor.authorBurns, Christopher R.
dc.contributor.authorChen, Juncheng
dc.contributor.authorDiamond, Tiara R.
dc.contributor.authorDavis, Scott
dc.contributor.authorFörster, Francisco
dc.contributor.authorGalbany, Lluís
dc.contributor.authorGonzález-Gaitán, Santiago
dc.contributor.authorGromadzki, Mariusz
dc.contributor.authorHoeflich, Peter
dc.contributor.authorLi, Wenxiong
dc.contributor.authorMarion, G. H.
dc.contributor.authorMorrell, Nidia
dc.contributor.authorPignata, Giuliano
dc.contributor.authorPrieto, Jose L.
dc.contributor.authorPhillips, Mark M.
dc.contributor.authorShahbandeh, Melissa
dc.contributor.authorSuntzeff, Nicholas B.
dc.contributor.authorValenti, Stefano
dc.contributor.authorWang, Lifan
dc.contributor.authorWang, Xiaofeng
dc.contributor.authorYoung, D. R.
dc.contributor.authorYu, Lixin
dc.contributor.authorZhang, Jujia
dc.date.accessioned2024-01-25T15:58:05Z
dc.date.available2024-01-25T15:58:05Z
dc.date.copyright2020-09-23
dc.date.issued2020
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number1
dc.description.versionORIGINAL_AUTHOR
dc.description.volume904
dc.identifier.doi10.3847/1538-4357/ABBA82
dc.identifier.issn0004-637X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/114962
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2020ApJ...904...14W
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstrophysical Journal
dc.relation.pages14
dc.rightsOther
dc.sciencecloudnosend
dc.titleOptical and Near-infrared Observations of the Nearby SN Ia 2017cbv
dc.typeJournalArticle
dspace.entity.typePublication