SN 2020udy: A New Piece of the Homogeneous Bright Group in the Diverse Iax Subclass

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dc.contributor.authorSingh, Mridweeka
dc.contributor.authorSahu, Devendra K.
dc.contributor.authorBarna, Barnabás
dc.contributor.authorGangopadhyay, Anjasha
dc.contributor.authorDastidar, Raya
dc.contributor.authorTeja, Rishabh Singh
dc.contributor.authorMisra, Kuntal
dc.contributor.authorHowell, D. Andrew
dc.contributor.authorWang, Xiaofeng
dc.contributor.authorMo, Jun
dc.contributor.authorYan, Shengyu
dc.contributor.authorHiramatsu, Daichi
dc.contributor.authorPellegrino, Craig
dc.contributor.authorAnupama G.C.
dc.contributor.authorJoshi, Arti
dc.contributor.authorBostroem, K. Azalee
dc.contributor.authorBurke, Jamison
dc.contributor.authorMcCully, Curtis
dc.contributor.authorSubramanian V, Rama
dc.contributor.authorLi, Gaici
dc.contributor.authorXi, Gaobo
dc.contributor.authorLi, Xin
dc.contributor.authorLi, Zhitong
dc.contributor.authorSrivastav, Shubham
dc.contributor.authorIm, Hyobin
dc.contributor.authorDutta, Anirban
dc.date.accessioned2024-05-02T17:37:49Z
dc.date.available2024-05-02T17:37:49Z
dc.date.issued2024-04-01
dc.descriptionIndexación: Scopus.
dc.description.abstractWe present optical observations and analysis of the bright type Iax supernova SN 2020udy hosted by NGC 0812. The evolution of the light curve of SN 2020udy is similar to that of other bright type Iax SNe. Analytical modeling of the quasi-bolometric light curves of SN 2020udy suggests that 0.08 ± 0.01 M ⊙ of 56Ni would have been synthesized during the explosion. The spectral features of SN 2020udy are similar to those of the bright members of type Iax class, showing a weak Si ii line. The late-time spectral sequence is mostly dominated by iron group elements with broad emission lines. Abundance tomography modeling of the spectral time series of SN 2020udy using TARDIS indicates stratification in the outer ejecta; however, to confirm this, spectral modeling at a very early phase is required. After maximum light, uniform mixing of chemical elements is sufficient to explain the spectral evolution. Unlike in the case of normal type Ia SNe, the photospheric approximation remains robust until +100 days, requiring an additional continuum source. Overall, the observational features of SN 2020udy are consistent with the deflagration of a carbon-oxygen white dwarf.
dc.description.urihttps://www-scopus-com.recursosbiblioteca.unab.cl/record/display.uri?eid=2-s2.0-85189988560&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=7508cef5017095c152c6ebd60757017d&sot=aff&sdt=cl&cluster=scofreetoread%2c%22all%22%2ct&sl=61&s=AF-ID%28%22Universidad+Andr%c3%a9s+Bello%22+60002636%29+AND+SUBJAREA%28EART%29&relpos=6&citeCnt=0&searchTerm=
dc.identifier.citationAstrophysical Journal Open Access Volume 965, Issue 11 April 2024 Article number 73
dc.identifier.doi10.3847/1538-4357/ad2618
dc.identifier.issn0004637X
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/56521
dc.language.isoen
dc.publisherInstitute of Physics
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectSupernovae
dc.subjectWhite Dwarfs
dc.subjectCompanion Stars
dc.titleSN 2020udy: A New Piece of the Homogeneous Bright Group in the Diverse Iax Subclass
dc.typeArtículo
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