SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae

J. M. DerKacy et al.

Detalles Bibliográficos
Autores: DerKacy, J. M., Galbany, Lluís
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/348721
Acceso en línea:http://hdl.handle.net/10261/348721
Access Level:acceso abierto
Palabra clave:Supernovae: general
Supernovae: individual: SN 2021fxy
SN 2013dy
SN 2017erp
ASASSN-14lp
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dc.title.none.fl_str_mv SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
title SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
spellingShingle SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
DerKacy, J. M.
Supernovae: general
Supernovae: individual: SN 2021fxy
SN 2013dy
SN 2017erp
ASASSN-14lp
title_short SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
title_full SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
title_fullStr SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
title_full_unstemmed SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
title_sort SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovae
dc.creator.none.fl_str_mv DerKacy, J. M.
Galbany, Lluís
author DerKacy, J. M.
author_facet DerKacy, J. M.
Galbany, Lluís
author_role author
author2 Galbany, Lluís
author2_role author
dc.contributor.none.fl_str_mv NASA
National Energy Research Scientific Computing Center (US)
Department of Energy (US)
Villum Fonden
Oklahoma State University
Independent Research Fund Denmark
Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas (España)
Ministerio de Ciencia e Innovación (España)
European Commission
Agencia Nacional de Investigación y Desarrollo (Chile)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Supernovae: general
Supernovae: individual: SN 2021fxy
SN 2013dy
SN 2017erp
ASASSN-14lp
topic Supernovae: general
Supernovae: individual: SN 2021fxy
SN 2013dy
SN 2017erp
ASASSN-14lp
description J. M. DerKacy et al.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/348721
url http://hdl.handle.net/10261/348721
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001058-M
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115253GA-I00
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stad1171
https://doi.org/10.1093/mnras/stad1171
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling SN 2021fxy: mid-ultraviolet flux suppression is a common feature of Type Ia supernovaeDerKacy, J. M.Galbany, LluísSupernovae: generalSupernovae: individual: SN 2021fxySN 2013dySN 2017erpASASSN-14lpJ. M. DerKacy et al.We present ultraviolet (UV) to near-infrared (NIR) observations and analysis of the nearby Type Ia supernova SN 2021fxy. Our observations include UV photometry from Swift/UVOT, UV spectroscopy from HST/STIS, and high-cadence optical photometry with the Swope 1-m telescope capturing intranight rises during the early light curve. Early B − V colours show SN 2021fxy is the first ‘shallow-silicon’ (SS) SN Ia to follow a red-to-blue evolution, compared to other SS objects which show blue colours from the earliest observations. Comparisons to other spectroscopically normal SNe Ia with HST UV spectra reveal SN 2021fxy is one of several SNe Ia with flux suppression in the mid-UV. These SNe also show blueshifted mid-UV spectral features and strong high-velocity Ca II features. One possible origin of this mid-UV suppression is the increased effective opacity in the UV due to increased line blanketing from high velocity material, but differences in the explosion mechanism cannot be ruled out. Among SNe Ia with mid-UV suppression, SNe 2021fxy and 2017erp show substantial similarities in their optical properties despite belonging to different Branch subgroups, and UV flux differences of the same order as those found between SNe 2011fe and 2011by. Differential comparisons to multiple sets of synthetic SN Ia UV spectra reveal this UV flux difference likely originates from a luminosity difference between SNe 2021fxy and 2017erp, and not differing progenitor metallicities as suggested for SNe 2011by and 2011fe. These comparisons illustrate the complicated nature of UV spectral formation, and the need for more UV spectra to determine the physical source of SNe Ia UV diversity.EB and JD are supported in part by NASA grant 80NSSC20K0538. Some of the calculations presented here were performed at the Höchstleistungs Rechenzentrum Nord (HLRN), at the National Energy Research Supercomputer Center (NERSC), which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098 and at the OU Supercomputing Center for Education & Research (OSCER) at the University of Oklahoma (OU). We thank all these institutions for a generous allocation of computer time. MDS and EK are supported by an Experiment grant (# 28021) from the Villum FONDEN, and by a project 1 grant (#8021-00170B) from the Independent Research Fund Denmark (IRFD). LG acknowledges financial support from the Spanish Ministerio de Ciencia e Innovación (MCIN), the Agencia Estatal de Investigación (AEI) 10.13039/501100011033, and the European Social Fund (ESF) ‘Investing in your future’ under the 2019 Ramón y Cajal program RYC2019-027683-I and the PID2020-115253GA-I00 HOSTFLOWS project, from Centro Superior de Investigaciones Científicas (CSIC) under the PIE project 20215AT016, and the program Unidad de Excelencia María de Maeztu CEX2020-001058-M. BJS is also supported by NSF grants AST-1907570, AST-1920392 and AST-1911074. AR acknowledges support from ANID BECAS/DOCTORADO NACIONAL 21202412. Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555. Support for Program number 16221 was provided through a grant from the STScI under NASA contract NAS5-26555.With funding from the Spanish government through the "Severo Ochoa Centre of Excellence" accreditation (CEX2020-001058-M).Peer reviewedOxford University PressNASANational Energy Research Scientific Computing Center (US)Department of Energy (US)Villum FondenOklahoma State UniversityIndependent Research Fund DenmarkMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas (España)Ministerio de Ciencia e Innovación (España)European CommissionAgencia Nacional de Investigación y Desarrollo (Chile)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/348721reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI//RYC2019-027683-Iinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001058-Minfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-115253GA-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stad1171https://doi.org/10.1093/mnras/stad1171Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3487212026-05-22T06:33:51Z
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