Observed Type II supernova colours from the Carnegie Supernova Project-I

Autores
de Jaeger, T.; Anderson, J. P.; Galbany, L.; González Gaitán, S.; Hamuy, M.; Phillips, M. M.; Stritzinger, M. D.; Contreras, C.; Folatelli, Gaston; Gutiérrez, C. P.; Hsiao, E. Y.; Morrell, Nidia Irene; Suntzeff, N. B.; Dessart, L.; Filippenko, A. V.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that SN II colour curves can be described by two linear regimes during the photospheric phase. The first (s, 1colour) is steeper and has a median duration of ~40 d. The second, shallower slope (s, 2colour) lasts until the end of the 'plateau' (~80 d). The two slopes correlate in the sense that steeper initial colour curves also imply steeper colour curves at later phases. As suggested by recent studies, SNe II form a continuous population of objects from the colour point of view as well. We investigate correlations between the observed colours and a range of photometric and spectroscopic parameters including the absolute magnitude, the V-band light-curve slopes, and metal-line strengths. We find that less luminous SNe II appear redder, a trend that we argue is not driven by uncorrected hostgalaxy reddening. While there is significant dispersion, we find evidence that redder SNe II (mainly at early epochs) display stronger metal-line equivalent widths. Host-galaxy reddening does not appear to be a dominant parameter, neither driving observed trends nor dominating the dispersion in observed colours. Intrinsic SN II colours are most probably dominated by photospheric temperature differences, with progenitor metallicity possibly playing a minor role. Such temperature differences could be related to differences in progenitor radius, together with the presence or absence of circumstellar material close to the progenitor stars.
Fil: de Jaeger, T.. University of California at Berkeley; Estados Unidos
Fil: Anderson, J. P.. European Southern Observatory Santiago; Chile
Fil: Galbany, L.. University of Pittsburgh at Johnstown; Estados Unidos. University of Pittsburgh; Estados Unidos
Fil: González Gaitán, S.. Instituto Superior Tecnico; Portugal
Fil: Hamuy, M.. Universidad de Chile; Chile. Millennium Institute Of Astrophysics; China
Fil: Phillips, M. M.. Las Campanas Observatory; Chile
Fil: Stritzinger, M. D.. University Aarhus; Dinamarca
Fil: Contreras, C.. Las Campanas Observatory; Chile
Fil: Folatelli, Gaston. University Of Tokyo; . 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: Gutiérrez, C. P.. University of Southampton; Reino Unido
Fil: Hsiao, E. Y.. Florida State University; Estados Unidos
Fil: Morrell, Nidia Irene. Las Campanas Observatory; Chile
Fil: Suntzeff, N. B.. Texas A&M University; Estados Unidos
Fil: Dessart, L.. Universidad de Chile; Chile
Fil: Filippenko, A. V.. University of California at Berkeley; Estados Unidos
Materia
DUST
EXTINCTION
SUPERNOVAE: GENERAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82472
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/82472
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Observed Type II supernova colours from the Carnegie Supernova Project-Ide Jaeger, T.Anderson, J. P.Galbany, L.González Gaitán, S.Hamuy, M.Phillips, M. M.Stritzinger, M. D.Contreras, C.Folatelli, GastonGutiérrez, C. P.Hsiao, E. Y.Morrell, Nidia IreneSuntzeff, N. B.Dessart, L.Filippenko, A. V.DUSTEXTINCTIONSUPERNOVAE: GENERALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that SN II colour curves can be described by two linear regimes during the photospheric phase. The first (s, 1colour) is steeper and has a median duration of ~40 d. The second, shallower slope (s, 2colour) lasts until the end of the 'plateau' (~80 d). The two slopes correlate in the sense that steeper initial colour curves also imply steeper colour curves at later phases. As suggested by recent studies, SNe II form a continuous population of objects from the colour point of view as well. We investigate correlations between the observed colours and a range of photometric and spectroscopic parameters including the absolute magnitude, the V-band light-curve slopes, and metal-line strengths. We find that less luminous SNe II appear redder, a trend that we argue is not driven by uncorrected hostgalaxy reddening. While there is significant dispersion, we find evidence that redder SNe II (mainly at early epochs) display stronger metal-line equivalent widths. Host-galaxy reddening does not appear to be a dominant parameter, neither driving observed trends nor dominating the dispersion in observed colours. Intrinsic SN II colours are most probably dominated by photospheric temperature differences, with progenitor metallicity possibly playing a minor role. Such temperature differences could be related to differences in progenitor radius, together with the presence or absence of circumstellar material close to the progenitor stars.Fil: de Jaeger, T.. University of California at Berkeley; Estados UnidosFil: Anderson, J. P.. European Southern Observatory Santiago; ChileFil: Galbany, L.. University of Pittsburgh at Johnstown; Estados Unidos. University of Pittsburgh; Estados UnidosFil: González Gaitán, S.. Instituto Superior Tecnico; PortugalFil: Hamuy, M.. Universidad de Chile; Chile. Millennium Institute Of Astrophysics; ChinaFil: Phillips, M. M.. Las Campanas Observatory; ChileFil: Stritzinger, M. D.. University Aarhus; DinamarcaFil: Contreras, C.. Las Campanas Observatory; ChileFil: Folatelli, Gaston. University Of Tokyo; . 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: Gutiérrez, C. P.. University of Southampton; Reino UnidoFil: Hsiao, E. Y.. Florida State University; Estados UnidosFil: Morrell, Nidia Irene. Las Campanas Observatory; ChileFil: Suntzeff, N. B.. Texas A&M University; Estados UnidosFil: Dessart, L.. Universidad de Chile; ChileFil: Filippenko, A. V.. University of California at Berkeley; Estados UnidosOxford University Press2018-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82472de Jaeger, T.; Anderson, J. P.; Galbany, L.; González Gaitán, S.; Hamuy, M.; et al.; Observed Type II supernova colours from the Carnegie Supernova Project-I; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 476; 4; 6-2018; 4592-46160035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty508info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/476/4/4592/4907983info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:11:25Zoai:ri.conicet.gov.ar:11336/82472instacron: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:34982025-09-10 13:11:25.385CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Observed Type II supernova colours from the Carnegie Supernova Project-I
title Observed Type II supernova colours from the Carnegie Supernova Project-I
spellingShingle Observed Type II supernova colours from the Carnegie Supernova Project-I
de Jaeger, T.
DUST
EXTINCTION
SUPERNOVAE: GENERAL
title_short Observed Type II supernova colours from the Carnegie Supernova Project-I
title_full Observed Type II supernova colours from the Carnegie Supernova Project-I
title_fullStr Observed Type II supernova colours from the Carnegie Supernova Project-I
title_full_unstemmed Observed Type II supernova colours from the Carnegie Supernova Project-I
title_sort Observed Type II supernova colours from the Carnegie Supernova Project-I
dc.creator.none.fl_str_mv de Jaeger, T.
Anderson, J. P.
Galbany, L.
González Gaitán, S.
Hamuy, M.
Phillips, M. M.
Stritzinger, M. D.
Contreras, C.
Folatelli, Gaston
Gutiérrez, C. P.
Hsiao, E. Y.
Morrell, Nidia Irene
Suntzeff, N. B.
Dessart, L.
Filippenko, A. V.
author de Jaeger, T.
author_facet de Jaeger, T.
Anderson, J. P.
Galbany, L.
González Gaitán, S.
Hamuy, M.
Phillips, M. M.
Stritzinger, M. D.
Contreras, C.
Folatelli, Gaston
Gutiérrez, C. P.
Hsiao, E. Y.
Morrell, Nidia Irene
Suntzeff, N. B.
Dessart, L.
Filippenko, A. V.
author_role author
author2 Anderson, J. P.
Galbany, L.
González Gaitán, S.
Hamuy, M.
Phillips, M. M.
Stritzinger, M. D.
Contreras, C.
Folatelli, Gaston
Gutiérrez, C. P.
Hsiao, E. Y.
Morrell, Nidia Irene
Suntzeff, N. B.
Dessart, L.
Filippenko, A. V.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv DUST
EXTINCTION
SUPERNOVAE: GENERAL
topic DUST
EXTINCTION
SUPERNOVAE: GENERAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that SN II colour curves can be described by two linear regimes during the photospheric phase. The first (s, 1colour) is steeper and has a median duration of ~40 d. The second, shallower slope (s, 2colour) lasts until the end of the 'plateau' (~80 d). The two slopes correlate in the sense that steeper initial colour curves also imply steeper colour curves at later phases. As suggested by recent studies, SNe II form a continuous population of objects from the colour point of view as well. We investigate correlations between the observed colours and a range of photometric and spectroscopic parameters including the absolute magnitude, the V-band light-curve slopes, and metal-line strengths. We find that less luminous SNe II appear redder, a trend that we argue is not driven by uncorrected hostgalaxy reddening. While there is significant dispersion, we find evidence that redder SNe II (mainly at early epochs) display stronger metal-line equivalent widths. Host-galaxy reddening does not appear to be a dominant parameter, neither driving observed trends nor dominating the dispersion in observed colours. Intrinsic SN II colours are most probably dominated by photospheric temperature differences, with progenitor metallicity possibly playing a minor role. Such temperature differences could be related to differences in progenitor radius, together with the presence or absence of circumstellar material close to the progenitor stars.
Fil: de Jaeger, T.. University of California at Berkeley; Estados Unidos
Fil: Anderson, J. P.. European Southern Observatory Santiago; Chile
Fil: Galbany, L.. University of Pittsburgh at Johnstown; Estados Unidos. University of Pittsburgh; Estados Unidos
Fil: González Gaitán, S.. Instituto Superior Tecnico; Portugal
Fil: Hamuy, M.. Universidad de Chile; Chile. Millennium Institute Of Astrophysics; China
Fil: Phillips, M. M.. Las Campanas Observatory; Chile
Fil: Stritzinger, M. D.. University Aarhus; Dinamarca
Fil: Contreras, C.. Las Campanas Observatory; Chile
Fil: Folatelli, Gaston. University Of Tokyo; . 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: Gutiérrez, C. P.. University of Southampton; Reino Unido
Fil: Hsiao, E. Y.. Florida State University; Estados Unidos
Fil: Morrell, Nidia Irene. Las Campanas Observatory; Chile
Fil: Suntzeff, N. B.. Texas A&M University; Estados Unidos
Fil: Dessart, L.. Universidad de Chile; Chile
Fil: Filippenko, A. V.. University of California at Berkeley; Estados Unidos
description We present a study of observed Type II supernova (SN II) colours using optical/near-infrared photometric data from the Carnegie Supernovae Project-I. We analyse four colours (B - V, u - g, g - r, and g - Y) and find that SN II colour curves can be described by two linear regimes during the photospheric phase. The first (s, 1colour) is steeper and has a median duration of ~40 d. The second, shallower slope (s, 2colour) lasts until the end of the 'plateau' (~80 d). The two slopes correlate in the sense that steeper initial colour curves also imply steeper colour curves at later phases. As suggested by recent studies, SNe II form a continuous population of objects from the colour point of view as well. We investigate correlations between the observed colours and a range of photometric and spectroscopic parameters including the absolute magnitude, the V-band light-curve slopes, and metal-line strengths. We find that less luminous SNe II appear redder, a trend that we argue is not driven by uncorrected hostgalaxy reddening. While there is significant dispersion, we find evidence that redder SNe II (mainly at early epochs) display stronger metal-line equivalent widths. Host-galaxy reddening does not appear to be a dominant parameter, neither driving observed trends nor dominating the dispersion in observed colours. Intrinsic SN II colours are most probably dominated by photospheric temperature differences, with progenitor metallicity possibly playing a minor role. Such temperature differences could be related to differences in progenitor radius, together with the presence or absence of circumstellar material close to the progenitor stars.
publishDate 2018
dc.date.none.fl_str_mv 2018-06
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/11336/82472
de Jaeger, T.; Anderson, J. P.; Galbany, L.; González Gaitán, S.; Hamuy, M.; et al.; Observed Type II supernova colours from the Carnegie Supernova Project-I; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 476; 4; 6-2018; 4592-4616
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82472
identifier_str_mv de Jaeger, T.; Anderson, J. P.; Galbany, L.; González Gaitán, S.; Hamuy, M.; et al.; Observed Type II supernova colours from the Carnegie Supernova Project-I; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 476; 4; 6-2018; 4592-4616
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty508
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/476/4/4592/4907983
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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: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 12.993085

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