Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class
Photometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) 2020cxd and 2021aai are presented. SN 2020cxd was discovered 2 d after explosion at an absolute magnitude of Mr = -14.02 ± 0.21 mag, subsequently settling on a plateau which lasts for ∼120 d. Through the lumin...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/279893 |
| Acesso em linha: | http://hdl.handle.net/10261/279893 |
| Access Level: | acceso abierto |
| Palavra-chave: | Supernovae: general Supernovae: individual: SN 2020cxd SN 2021aai |
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ES_41b13beaddcd9f8c2c64ea577d2e78b8 |
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oai:digital.csic.es:10261/279893 |
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| dc.title.none.fl_str_mv |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| title |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| spellingShingle |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class Valerin, Giorgio Supernovae: general Supernovae: individual: SN 2020cxd SN 2021aai |
| title_short |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| title_full |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| title_fullStr |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| title_full_unstemmed |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| title_sort |
Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae class |
| dc.creator.none.fl_str_mv |
Valerin, Giorgio Pumo, M. L. Pastorello, Andrea Reguitti, Andrea Elias-Rosa, Nancy Gutiérrez, Claudia P. Kankare, E. Fraser, Morgan Mazzali, Paolo A. Howell, D. Andrew Kotak, R. Galbany, Lluís Williams, S. C. Cai, Y-Z Salmaso, Irene Pinter, V. Müller-Bravo, Tomás E. Burke, John M. Padilla González, E. Hiramatsu, Daichi McCully, Curtis Newsome, Megan Pellegrino, Conte |
| author |
Valerin, Giorgio |
| author_facet |
Valerin, Giorgio Pumo, M. L. Pastorello, Andrea Reguitti, Andrea Elias-Rosa, Nancy Gutiérrez, Claudia P. Kankare, E. Fraser, Morgan Mazzali, Paolo A. Howell, D. Andrew Kotak, R. Galbany, Lluís Williams, S. C. Cai, Y-Z Salmaso, Irene Pinter, V. Müller-Bravo, Tomás E. Burke, John M. Padilla González, E. Hiramatsu, Daichi McCully, Curtis Newsome, Megan Pellegrino, Conte |
| author_role |
author |
| author2 |
Pumo, M. L. Pastorello, Andrea Reguitti, Andrea Elias-Rosa, Nancy Gutiérrez, Claudia P. Kankare, E. Fraser, Morgan Mazzali, Paolo A. Howell, D. Andrew Kotak, R. Galbany, Lluís Williams, S. C. Cai, Y-Z Salmaso, Irene Pinter, V. Müller-Bravo, Tomás E. Burke, John M. Padilla González, E. Hiramatsu, Daichi McCully, Curtis Newsome, Megan Pellegrino, Conte |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Università degli Studi di Padova Universidad de Barcelona Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) European Commission Consejo Superior de Investigaciones Científicas (España) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Supernovae: general Supernovae: individual: SN 2020cxd SN 2021aai |
| topic |
Supernovae: general Supernovae: individual: SN 2020cxd SN 2021aai |
| description |
Photometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) 2020cxd and 2021aai are presented. SN 2020cxd was discovered 2 d after explosion at an absolute magnitude of Mr = -14.02 ± 0.21 mag, subsequently settling on a plateau which lasts for ∼120 d. Through the luminosity of the late light curve tail, we infer a synthesized 56Ni mass of (1.8 ± 0.5) × 10-3 M⊙. During the early evolutionary phases, optical spectra show a blue continuum ($T\, \gt $8000 K) with broad Balmer lines displaying a P Cygni profile, while at later phases, Ca ii, Fe ii, Sc ii, and Ba ii lines dominate the spectra. Hydrodynamical modelling of the observables yields $R\, \simeq$ 575 R⊙ for the progenitor star, with Mej = 7.5 M⊙ and $E\, \simeq$ 0.097 foe emitted during the explosion. This low-energy event originating from a low-mass progenitor star is compatible with both the explosion of a red supergiant (RSG) star and with an Electron Capture Supernova arising from a super asymptotic giant branch star. SN 2021aai reaches a maximum luminosity of Mr = -16.57 ± 0.23 mag (correcting for AV = 1.92 mag), at the end of its remarkably long plateau (∼140 d). The estimated 56Ni mass is (1.4 ± 0.5) × 10-2 M⊙. The expansion velocities are compatible with those of other LL SNe IIP (few 103 km s-1). The physical parameters obtained through hydrodynamical modelling are $R\, \simeq$ 575 R⊙, Mej = 15.5 M⊙, and E = 0.4 foe. SN 2021aai is therefore interpreted as the explosion of an RSG, with properties that bridge the class of LL SNe IIP with standard SN IIP events. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022 2022 2022 |
| 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/10261/279893 |
| url |
http://hdl.handle.net/10261/279893 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
#PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108709GB-I00 info:eu-repo/grantAgreement/MICINN/ACORRALANDO LA "TENSION DE HUBBLE" ESTUDIANDO ERRORES SISTEMATICOS Y RECONSTRUYENDO DEL UNIVERSO LOCAL CON SUPERNOVAS/PID2020-115253GA-I00 The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stac1182 http://doi.org/10.1093/mnras/stac1182 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Royal Astronomical Society |
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Royal Astronomical Society |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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1869406872069472256 |
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Low luminosity Type II supernovae - IV. SN 2020cxd and SN 2021aai, at the edges of the sub-luminous supernovae classValerin, GiorgioPumo, M. L.Pastorello, AndreaReguitti, AndreaElias-Rosa, NancyGutiérrez, Claudia P.Kankare, E.Fraser, MorganMazzali, Paolo A.Howell, D. AndrewKotak, R.Galbany, LluísWilliams, S. C.Cai, Y-ZSalmaso, IrenePinter, V.Müller-Bravo, Tomás E.Burke, John M.Padilla González, E.Hiramatsu, DaichiMcCully, CurtisNewsome, MeganPellegrino, ConteSupernovae: generalSupernovae: individual: SN 2020cxdSN 2021aaiPhotometric and spectroscopic data for two Low Luminosity Type IIP Supernovae (LL SNe IIP) 2020cxd and 2021aai are presented. SN 2020cxd was discovered 2 d after explosion at an absolute magnitude of Mr = -14.02 ± 0.21 mag, subsequently settling on a plateau which lasts for ∼120 d. Through the luminosity of the late light curve tail, we infer a synthesized 56Ni mass of (1.8 ± 0.5) × 10-3 M⊙. During the early evolutionary phases, optical spectra show a blue continuum ($T\, \gt $8000 K) with broad Balmer lines displaying a P Cygni profile, while at later phases, Ca ii, Fe ii, Sc ii, and Ba ii lines dominate the spectra. Hydrodynamical modelling of the observables yields $R\, \simeq$ 575 R⊙ for the progenitor star, with Mej = 7.5 M⊙ and $E\, \simeq$ 0.097 foe emitted during the explosion. This low-energy event originating from a low-mass progenitor star is compatible with both the explosion of a red supergiant (RSG) star and with an Electron Capture Supernova arising from a super asymptotic giant branch star. SN 2021aai reaches a maximum luminosity of Mr = -16.57 ± 0.23 mag (correcting for AV = 1.92 mag), at the end of its remarkably long plateau (∼140 d). The estimated 56Ni mass is (1.4 ± 0.5) × 10-2 M⊙. The expansion velocities are compatible with those of other LL SNe IIP (few 103 km s-1). The physical parameters obtained through hydrodynamical modelling are $R\, \simeq$ 575 R⊙, Mej = 15.5 M⊙, and E = 0.4 foe. SN 2021aai is therefore interpreted as the explosion of an RSG, with properties that bridge the class of LL SNe IIP with standard SN IIP events.GV acknowledges INAF for funding his PhD fellowship within the PhD School in Astronomy at the University of Padova. MLP acknowledges support from the plan ‘programma ricerca di ateneo UNICT 2020-22 linea 2” of the University of Catania. AR acknowledges support from ANID BECAS/DOCTORADO NACIONAL 21202412. NER acknowledges partial support from MIUR, PRIN 2017 (grant 20179ZF5KS), from the Spanish MICINN grant PID2019-108709GB-I00 and FEDER funds, and from the programme Unidad de Excelencia María de Maeztu CEX2020-001058-M. 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 programme RYC2019-027683-I and the PID2020-115253GA-I00 HOSTFLOWS project, from Centro Superior de Investigaciones Científicas (CSIC) under the PIE project 20215AT016, and the programme Unidad de Excelencia María de Maeztu CEX2020-001058-M. TMB acknowledges financial support from the Spanish Ministerio de Ciencia e Innovación (MCIN), the Agencia Estatal de Investigación (AEI) 10.13039/501100011033 under the PID2020-115253GA-I00 HOSTFLOWS project, and from Centro Superior de Investigaciones Científicas (CSIC) under the PIE project 20215AT016, and the programme Unidad de Excelencia María de Maeztu CEX2020-001058-M. Y-ZC is funded by China Postdoctoral Science Foundation (grant no. 2021M691821)Royal Astronomical SocietyUniversità degli Studi di PadovaUniversidad de BarcelonaMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/279893reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108709GB-I00info:eu-repo/grantAgreement/MICINN/ACORRALANDO LA "TENSION DE HUBBLE" ESTUDIANDO ERRORES SISTEMATICOS Y RECONSTRUYENDO DEL UNIVERSO LOCAL CON SUPERNOVAS/PID2020-115253GA-I00The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/stac1182http://doi.org/10.1093/mnras/stac1182Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2798932026-05-22T06:33:51Z |
| score |
15,81155 |