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.accesoabiertoSI
dc.description.agradWe thank the anonymous referee for providing useful comments and suggestions toward improvement of the manuscript. We acknowledge Wiezmann Interactive Supernova data REPository (WISeREP26; Yaron & Gal-Yam 2012). This research has made use of the CfA Supernova Archive, which is funded in part by the National Science Foundation through grant AST 0907903. This research has made use of the NASA/ IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. R.D. acknowledges funds by ANID grant FONDECYT Postdoctorado No 3220449. The work of X.W. is supported by the National Natural Science Foundation of China (NSFC grants 12288102, 12033003, and 11633002), the Science Program (BS202002) and the Innovation Project (23CB061) of Beijing Academy of Science and Technology, and the Tencent Xplorer Prize. This work makes use of data obtained with the LCO Network. This research made use of TARDIS, a community-developed software package for spectral synthesis in supernovae (Kerzendorf & Sim 2014; Kerzendorf et al. 2018, 2019). The development of TARDIS received support from the Google Summer of Code initiative and from ESA’s Summer of Code in Space program. TARDIS makes extensive use of Astropy and PyNE. This work made use of the Heidelberg Supernova Model Archive (HESMA). 27 D.A.H., G.H., and C.M. were supported by NSF grants AST1313484 and AST-1911225. We acknowledge the usage of the HyperLeda database.28 The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.
dc.description.urihttps://iopscience-iop-org.recursosbiblioteca.unab.cl/article/10.3847/1538-4357/ad2618
dc.identifier.citationAstrophysical Journal. Volume 965, Issue 1. 1 April 2024. Article number 73
dc.identifier.doi10.3847/1538-4357/ad2618
dc.identifier.folioANID grant FONDECYT Postdoctorado No 3220449
dc.identifier.generoM
dc.identifier.issn0004-637X
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/56521
dc.language.isoen
dc.other.orcidhttps://orcid.org/0000-0001-6191-7160
dc.publisherInstitute of Physics
dc.rights.licenseCC BY 4.0 Attribution 4.0 International Deed
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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