Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor

Autores
Kuncarayakti, H.; Maeda, K.; Dessart, L.; Nagao, T.; Fulton, M.; Gutiérrez, C. P.; Huber, M. E.; Young, D. R.; Kotak, R.; Mattila, S.; Anderson, J. P.; Ferrari, Lucía; Folatelli, Gaston; Gao, H.; Magnier, E.; Smith, K. W.; Srivastav, S.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 (z = 0.01911) within the interacting system Arp 144 and subsequently classified as a normal Type Ic SN around peak brightness. Very Large Telescope/FORS2 observations in the nebular phase at 148 days reveal that the spectrum is dominated by oxygen and magnesium emission lines of different transitions and ionization states: O i, [O i], [O ii], [O iii], Mg i, and Mg ii. Such a spectrum has no counterpart in the literature, though it bears a few features similar to those of some interacting Type Ibn and Icn SNe. Additionally, SN 2021ocs showed a blue color, (g − r) ≲ −0.5 mag, after the peak and up to late phases, atypical for a Type Ic SN. Together with the nebular spectrum, this suggests that SN 2021ocs underwent late-time interaction with an H/He-poor circumstellar medium (CSM) resulting from the pre-SN progenitor mass loss during its final ∼1000 days. The strong O and Mg lines and the absence of strong C and He lines suggest that the progenitor star’s O-Mg layer is exposed, which places SN 2021ocs as the most extreme case of a massive progenitor star’s envelope stripping in interacting SNe, followed by Type Icn (stripped C-O layer) and Ibn (stripped He-rich layer) SNe. This is the first time such a case is reported in the literature. The SN 2021ocs emphasizes the importance of late-time spectroscopy of SNe, even for those classified as normal events, to reveal the inner ejecta and progenitor star’s CSM and mass loss.
Fil: Kuncarayakti, H.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; Finlandia
Fil: Maeda, K.. Graduate School Of Science; Japón
Fil: Dessart, L.. Institut Dastrophysique de Paris; Francia
Fil: Nagao, T.. Tuorlan Observatorio; Finlandia
Fil: Fulton, M.. The Queens University of Belfast; Irlanda
Fil: Gutiérrez, C. P.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; Finlandia
Fil: Huber, M. E.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Young, D. R.. The Queens University of Belfast; Irlanda
Fil: Kotak, R.. Tuorlan Observatorio; Finlandia
Fil: Mattila, S.. European University Cyprus; Chipre. Tuorlan Observatorio; Finlandia
Fil: Anderson, J. P.. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Ferrari, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gao, H.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Magnier, E.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Smith, K. W.. The Queens University of Belfast; Irlanda
Fil: Srivastav, S.. The Queens University of Belfast; Irlanda
Materia
Supernovae
Circumstellar matter
Massive stars
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/211096
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/211096
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the ProgenitorKuncarayakti, H.Maeda, K.Dessart, L.Nagao, T.Fulton, M.Gutiérrez, C. P.Huber, M. E.Young, D. R.Kotak, R.Mattila, S.Anderson, J. P.Ferrari, LucíaFolatelli, GastonGao, H.Magnier, E.Smith, K. W.Srivastav, S.SupernovaeCircumstellar matterMassive starshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 (z = 0.01911) within the interacting system Arp 144 and subsequently classified as a normal Type Ic SN around peak brightness. Very Large Telescope/FORS2 observations in the nebular phase at 148 days reveal that the spectrum is dominated by oxygen and magnesium emission lines of different transitions and ionization states: O i, [O i], [O ii], [O iii], Mg i, and Mg ii. Such a spectrum has no counterpart in the literature, though it bears a few features similar to those of some interacting Type Ibn and Icn SNe. Additionally, SN 2021ocs showed a blue color, (g − r) ≲ −0.5 mag, after the peak and up to late phases, atypical for a Type Ic SN. Together with the nebular spectrum, this suggests that SN 2021ocs underwent late-time interaction with an H/He-poor circumstellar medium (CSM) resulting from the pre-SN progenitor mass loss during its final ∼1000 days. The strong O and Mg lines and the absence of strong C and He lines suggest that the progenitor star’s O-Mg layer is exposed, which places SN 2021ocs as the most extreme case of a massive progenitor star’s envelope stripping in interacting SNe, followed by Type Icn (stripped C-O layer) and Ibn (stripped He-rich layer) SNe. This is the first time such a case is reported in the literature. The SN 2021ocs emphasizes the importance of late-time spectroscopy of SNe, even for those classified as normal events, to reveal the inner ejecta and progenitor star’s CSM and mass loss.Fil: Kuncarayakti, H.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; FinlandiaFil: Maeda, K.. Graduate School Of Science; JapónFil: Dessart, L.. Institut Dastrophysique de Paris; FranciaFil: Nagao, T.. Tuorlan Observatorio; FinlandiaFil: Fulton, M.. The Queens University of Belfast; IrlandaFil: Gutiérrez, C. P.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; FinlandiaFil: Huber, M. E.. University Hawaii Institute For Astronomy; Estados UnidosFil: Young, D. R.. The Queens University of Belfast; IrlandaFil: Kotak, R.. Tuorlan Observatorio; FinlandiaFil: Mattila, S.. European University Cyprus; Chipre. Tuorlan Observatorio; FinlandiaFil: Anderson, J. P.. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; ChileFil: Ferrari, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Gao, H.. University Hawaii Institute For Astronomy; Estados UnidosFil: Magnier, E.. University Hawaii Institute For Astronomy; Estados UnidosFil: Smith, K. W.. The Queens University of Belfast; IrlandaFil: Srivastav, S.. The Queens University of Belfast; IrlandaAmerican Astronomical Society2022-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/211096Kuncarayakti, H.; Maeda, K.; Dessart, L.; Nagao, T.; Fulton, M.; et al.; Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor; American Astronomical Society; Astrophysical Journal Letters; 941; 2; 12-2022; 1-72041-82052041-8213CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/2041-8213/aca672info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/2041-8213/aca672info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:29:44Zoai:ri.conicet.gov.ar:11336/211096instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:29:44.843CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
title Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
spellingShingle Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
Kuncarayakti, H.
Supernovae
Circumstellar matter
Massive stars
title_short Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
title_full Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
title_fullStr Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
title_full_unstemmed Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
title_sort Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor
dc.creator.none.fl_str_mv Kuncarayakti, H.
Maeda, K.
Dessart, L.
Nagao, T.
Fulton, M.
Gutiérrez, C. P.
Huber, M. E.
Young, D. R.
Kotak, R.
Mattila, S.
Anderson, J. P.
Ferrari, Lucía
Folatelli, Gaston
Gao, H.
Magnier, E.
Smith, K. W.
Srivastav, S.
author Kuncarayakti, H.
author_facet Kuncarayakti, H.
Maeda, K.
Dessart, L.
Nagao, T.
Fulton, M.
Gutiérrez, C. P.
Huber, M. E.
Young, D. R.
Kotak, R.
Mattila, S.
Anderson, J. P.
Ferrari, Lucía
Folatelli, Gaston
Gao, H.
Magnier, E.
Smith, K. W.
Srivastav, S.
author_role author
author2 Maeda, K.
Dessart, L.
Nagao, T.
Fulton, M.
Gutiérrez, C. P.
Huber, M. E.
Young, D. R.
Kotak, R.
Mattila, S.
Anderson, J. P.
Ferrari, Lucía
Folatelli, Gaston
Gao, H.
Magnier, E.
Smith, K. W.
Srivastav, S.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Supernovae
Circumstellar matter
Massive stars
topic Supernovae
Circumstellar matter
Massive stars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 (z = 0.01911) within the interacting system Arp 144 and subsequently classified as a normal Type Ic SN around peak brightness. Very Large Telescope/FORS2 observations in the nebular phase at 148 days reveal that the spectrum is dominated by oxygen and magnesium emission lines of different transitions and ionization states: O i, [O i], [O ii], [O iii], Mg i, and Mg ii. Such a spectrum has no counterpart in the literature, though it bears a few features similar to those of some interacting Type Ibn and Icn SNe. Additionally, SN 2021ocs showed a blue color, (g − r) ≲ −0.5 mag, after the peak and up to late phases, atypical for a Type Ic SN. Together with the nebular spectrum, this suggests that SN 2021ocs underwent late-time interaction with an H/He-poor circumstellar medium (CSM) resulting from the pre-SN progenitor mass loss during its final ∼1000 days. The strong O and Mg lines and the absence of strong C and He lines suggest that the progenitor star’s O-Mg layer is exposed, which places SN 2021ocs as the most extreme case of a massive progenitor star’s envelope stripping in interacting SNe, followed by Type Icn (stripped C-O layer) and Ibn (stripped He-rich layer) SNe. This is the first time such a case is reported in the literature. The SN 2021ocs emphasizes the importance of late-time spectroscopy of SNe, even for those classified as normal events, to reveal the inner ejecta and progenitor star’s CSM and mass loss.
Fil: Kuncarayakti, H.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; Finlandia
Fil: Maeda, K.. Graduate School Of Science; Japón
Fil: Dessart, L.. Institut Dastrophysique de Paris; Francia
Fil: Nagao, T.. Tuorlan Observatorio; Finlandia
Fil: Fulton, M.. The Queens University of Belfast; Irlanda
Fil: Gutiérrez, C. P.. Turun Yliopisto; Finlandia. Tuorlan Observatorio; Finlandia
Fil: Huber, M. E.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Young, D. R.. The Queens University of Belfast; Irlanda
Fil: Kotak, R.. Tuorlan Observatorio; Finlandia
Fil: Mattila, S.. European University Cyprus; Chipre. Tuorlan Observatorio; Finlandia
Fil: Anderson, J. P.. European Southern Observatory Santiago; Chile. Instituto Milenio de Astrofísica; Chile
Fil: Ferrari, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gao, H.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Magnier, E.. University Hawaii Institute For Astronomy; Estados Unidos
Fil: Smith, K. W.. The Queens University of Belfast; Irlanda
Fil: Srivastav, S.. The Queens University of Belfast; Irlanda
description Supernova (SN) 2021ocs was discovered in the galaxy NGC 7828 (z = 0.01911) within the interacting system Arp 144 and subsequently classified as a normal Type Ic SN around peak brightness. Very Large Telescope/FORS2 observations in the nebular phase at 148 days reveal that the spectrum is dominated by oxygen and magnesium emission lines of different transitions and ionization states: O i, [O i], [O ii], [O iii], Mg i, and Mg ii. Such a spectrum has no counterpart in the literature, though it bears a few features similar to those of some interacting Type Ibn and Icn SNe. Additionally, SN 2021ocs showed a blue color, (g − r) ≲ −0.5 mag, after the peak and up to late phases, atypical for a Type Ic SN. Together with the nebular spectrum, this suggests that SN 2021ocs underwent late-time interaction with an H/He-poor circumstellar medium (CSM) resulting from the pre-SN progenitor mass loss during its final ∼1000 days. The strong O and Mg lines and the absence of strong C and He lines suggest that the progenitor star’s O-Mg layer is exposed, which places SN 2021ocs as the most extreme case of a massive progenitor star’s envelope stripping in interacting SNe, followed by Type Icn (stripped C-O layer) and Ibn (stripped He-rich layer) SNe. This is the first time such a case is reported in the literature. The SN 2021ocs emphasizes the importance of late-time spectroscopy of SNe, even for those classified as normal events, to reveal the inner ejecta and progenitor star’s CSM and mass loss.
publishDate 2022
dc.date.none.fl_str_mv 2022-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/211096
Kuncarayakti, H.; Maeda, K.; Dessart, L.; Nagao, T.; Fulton, M.; et al.; Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor; American Astronomical Society; Astrophysical Journal Letters; 941; 2; 12-2022; 1-7
2041-8205
2041-8213
CONICET Digital
CONICET
url http://hdl.handle.net/11336/211096
identifier_str_mv Kuncarayakti, H.; Maeda, K.; Dessart, L.; Nagao, T.; Fulton, M.; et al.; Late-time H/He-poor Circumstellar Interaction in the Type Ic Supernova SN 2021ocs: An Exposed Oxygen-Magnesium Layer and Extreme Stripping of the Progenitor; American Astronomical Society; Astrophysical Journal Letters; 941; 2; 12-2022; 1-7
2041-8205
2041-8213
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/2041-8213/aca672
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/2041-8213/aca672
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Astronomical Society
publisher.none.fl_str_mv American Astronomical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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