SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae
- Autores
- Davis, Scott; Pessi, Priscila Jael; Fraser, M.; Ertini, Keila Yael; Martinez, Veronica Laura; Hoeflich, Peter; Hsiao, Eric; Folatelli, Gaston; Ashall, Chris; Phillips, Mark; Anderson, J. P.; Bersten, Melina Cecilia; Englert, B.; Fisher, A.; Benetti, S.; Simaz Bunzel, Adolfo; Burns, Christopher R.; Chen, T. W.; Contreras, Carlos; Elias Rosa, N.; Falco, E.; Galbany, Lluís; Kirshner, Robert; Kumar, S.; Lu, J.; Lyman, D.; Marion, G. H.; Mattila, S.; Maund, J.; Morrell, Nidia Irene; Serón, J.; Stritzinger, Maximilian; Shahbandeh, Melissa; Sullivan, Mark; Suntzeff, N. B.; Young, D. R.
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present a study of the optical and near-infrared (NIR) spectra of SN 2013ai along with its light curves. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining Type II supernova (SN II) with an unusually long rise time, 18.9 2.7 days in the V-band, and a bright V-band peak absolute magnitude of -18.7 0.06 mag. The spectra are dominated by hydrogen features in the optical and NIR. The spectral features of SN 2013ai are unique in their expansion velocities, which, when compared to large samples of SNe II, are more than 1,000 km s-1 faster at 50 days past explosion. In addition, the long rise time of the light curve more closely resembles SNe IIb rather than SNe II. If SN 2013ai is coeval with a nearby compact cluster, we infer a progenitor zero-age main-sequence mass of ∼17 M o˙. After performing light-curve modeling, we find that SN 2013ai could be the result of the explosion of a star with little hydrogen mass, a large amount of synthesized 56Ni, 0.3-0.4 M o˙, and an explosion energy of 2.5-3.0 1051 erg. The density structure and expansion velocities of SN 2013ai are similar to those of the prototypical SN IIb, SN 1993J. However, SN 2013ai shows no strong helium features in the optical, likely due to the presence of a dense core that prevents the majority of γ-rays from escaping to excite helium. Our analysis suggests that SN 2013ai could be a link between SNe II and stripped-envelope SNe.
Fil: Davis, Scott. University of California; Estados Unidos
Fil: Pessi, Priscila Jael. 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: Fraser, M.. University College Dublin; Irlanda
Fil: Ertini, Keila Yael. 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: Martinez, Veronica Laura. 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: Hoeflich, Peter. Florida State University; Estados Unidos
Fil: Hsiao, Eric. Florida State University; Estados Unidos
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: Ashall, Chris. University of Hawaii at Manoa; Estados Unidos
Fil: Phillips, Mark. Carnegie Observatories. Las Campanas Observatory; Chile
Fil: Anderson, J. P.. European Southern Observatory Chile; Chile
Fil: Bersten, Melina Cecilia. 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: Englert, B.. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Fisher, A.. Florida State University; Estados Unidos
Fil: Benetti, S.. Osservatorio Astronomico di Padova; Italia
Fil: Simaz Bunzel, Adolfo. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Burns, Christopher R.. Observatories of the Carnegie Institution for Science; Estados Unidos
Fil: Chen, T. W.. Stockholm University; Suecia
Fil: Contreras, Carlos. 9Carnegie Observatories. Las Campanas Observatory; Chile
Fil: Elias Rosa, N.. Osservatorio Astronomico di Padova; Italia
Fil: Falco, E.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Galbany, Lluís. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Kirshner, Robert. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Kumar, S.. Florida State University; Estados Unidos
Fil: Lu, J.. Florida State University; Estados Unidos
Fil: Lyman, D.. University of Warwick; Reino Unido
Fil: Marion, G. H.. University of Warwick; Reino Unido
Fil: Mattila, S.. University of Turku; Finlandia
Fil: Maund, J.. University of Sheffield; Reino Unido
Fil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; Chile
Fil: Serón, J.. University of Sheffield; Reino Unido
Fil: Stritzinger, Maximilian. Aarhus University; Dinamarca
Fil: Shahbandeh, Melissa. Florida State University; Estados Unidos
Fil: Sullivan, Mark. Aarhus University; Dinamarca
Fil: Suntzeff, N. B.. Texas A&M University; Estados Unidos
Fil: Young, D. R.. Texas A&M University; Estados Unidos - Materia
-
Core-collapse supernovae
Type II supernovae
Late stellar evolution - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/146107
Ver los metadatos del registro completo
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SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse SupernovaeDavis, ScottPessi, Priscila JaelFraser, M.Ertini, Keila YaelMartinez, Veronica LauraHoeflich, PeterHsiao, EricFolatelli, GastonAshall, ChrisPhillips, MarkAnderson, J. P.Bersten, Melina CeciliaEnglert, B.Fisher, A.Benetti, S.Simaz Bunzel, AdolfoBurns, Christopher R.Chen, T. W.Contreras, CarlosElias Rosa, N.Falco, E.Galbany, LluísKirshner, RobertKumar, S.Lu, J.Lyman, D.Marion, G. H.Mattila, S.Maund, J.Morrell, Nidia IreneSerón, J.Stritzinger, MaximilianShahbandeh, MelissaSullivan, MarkSuntzeff, N. B.Young, D. R.Core-collapse supernovaeType II supernovaeLate stellar evolutionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a study of the optical and near-infrared (NIR) spectra of SN 2013ai along with its light curves. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining Type II supernova (SN II) with an unusually long rise time, 18.9 2.7 days in the V-band, and a bright V-band peak absolute magnitude of -18.7 0.06 mag. The spectra are dominated by hydrogen features in the optical and NIR. The spectral features of SN 2013ai are unique in their expansion velocities, which, when compared to large samples of SNe II, are more than 1,000 km s-1 faster at 50 days past explosion. In addition, the long rise time of the light curve more closely resembles SNe IIb rather than SNe II. If SN 2013ai is coeval with a nearby compact cluster, we infer a progenitor zero-age main-sequence mass of ∼17 M o˙. After performing light-curve modeling, we find that SN 2013ai could be the result of the explosion of a star with little hydrogen mass, a large amount of synthesized 56Ni, 0.3-0.4 M o˙, and an explosion energy of 2.5-3.0 1051 erg. The density structure and expansion velocities of SN 2013ai are similar to those of the prototypical SN IIb, SN 1993J. However, SN 2013ai shows no strong helium features in the optical, likely due to the presence of a dense core that prevents the majority of γ-rays from escaping to excite helium. Our analysis suggests that SN 2013ai could be a link between SNe II and stripped-envelope SNe.Fil: Davis, Scott. University of California; Estados UnidosFil: Pessi, Priscila Jael. 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: Fraser, M.. University College Dublin; IrlandaFil: Ertini, Keila Yael. 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: Martinez, Veronica Laura. 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: Hoeflich, Peter. Florida State University; Estados UnidosFil: Hsiao, Eric. Florida State University; Estados UnidosFil: 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: Ashall, Chris. University of Hawaii at Manoa; Estados UnidosFil: Phillips, Mark. Carnegie Observatories. Las Campanas Observatory; ChileFil: Anderson, J. P.. European Southern Observatory Chile; ChileFil: Bersten, Melina Cecilia. 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: Englert, B.. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Fisher, A.. Florida State University; Estados UnidosFil: Benetti, S.. Osservatorio Astronomico di Padova; ItaliaFil: Simaz Bunzel, Adolfo. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Burns, Christopher R.. Observatories of the Carnegie Institution for Science; Estados UnidosFil: Chen, T. W.. Stockholm University; SueciaFil: Contreras, Carlos. 9Carnegie Observatories. Las Campanas Observatory; ChileFil: Elias Rosa, N.. Osservatorio Astronomico di Padova; ItaliaFil: Falco, E.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Galbany, Lluís. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Kirshner, Robert. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Kumar, S.. Florida State University; Estados UnidosFil: Lu, J.. Florida State University; Estados UnidosFil: Lyman, D.. University of Warwick; Reino UnidoFil: Marion, G. H.. University of Warwick; Reino UnidoFil: Mattila, S.. University of Turku; FinlandiaFil: Maund, J.. University of Sheffield; Reino UnidoFil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; ChileFil: Serón, J.. University of Sheffield; Reino UnidoFil: Stritzinger, Maximilian. Aarhus University; DinamarcaFil: Shahbandeh, Melissa. Florida State University; Estados UnidosFil: Sullivan, Mark. Aarhus University; DinamarcaFil: Suntzeff, N. B.. Texas A&M University; Estados UnidosFil: Young, D. R.. Texas A&M University; Estados UnidosIOP Publishing2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146107Davis, Scott; Pessi, Priscila Jael; Fraser, M.; Ertini, Keila Yael; Martinez, Veronica Laura; et al.; SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae; IOP Publishing; Astrophysical Journal; 909; 2; 3-2021; 1-240004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/abdd36info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/abdd36info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:06Zoai:ri.conicet.gov.ar:11336/146107instacron: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 09:40:07.117CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| title |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| spellingShingle |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae Davis, Scott Core-collapse supernovae Type II supernovae Late stellar evolution |
| title_short |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| title_full |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| title_fullStr |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| title_full_unstemmed |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| title_sort |
SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae |
| dc.creator.none.fl_str_mv |
Davis, Scott Pessi, Priscila Jael Fraser, M. Ertini, Keila Yael Martinez, Veronica Laura Hoeflich, Peter Hsiao, Eric Folatelli, Gaston Ashall, Chris Phillips, Mark Anderson, J. P. Bersten, Melina Cecilia Englert, B. Fisher, A. Benetti, S. Simaz Bunzel, Adolfo Burns, Christopher R. Chen, T. W. Contreras, Carlos Elias Rosa, N. Falco, E. Galbany, Lluís Kirshner, Robert Kumar, S. Lu, J. Lyman, D. Marion, G. H. Mattila, S. Maund, J. Morrell, Nidia Irene Serón, J. Stritzinger, Maximilian Shahbandeh, Melissa Sullivan, Mark Suntzeff, N. B. Young, D. R. |
| author |
Davis, Scott |
| author_facet |
Davis, Scott Pessi, Priscila Jael Fraser, M. Ertini, Keila Yael Martinez, Veronica Laura Hoeflich, Peter Hsiao, Eric Folatelli, Gaston Ashall, Chris Phillips, Mark Anderson, J. P. Bersten, Melina Cecilia Englert, B. Fisher, A. Benetti, S. Simaz Bunzel, Adolfo Burns, Christopher R. Chen, T. W. Contreras, Carlos Elias Rosa, N. Falco, E. Galbany, Lluís Kirshner, Robert Kumar, S. Lu, J. Lyman, D. Marion, G. H. Mattila, S. Maund, J. Morrell, Nidia Irene Serón, J. Stritzinger, Maximilian Shahbandeh, Melissa Sullivan, Mark Suntzeff, N. B. Young, D. R. |
| author_role |
author |
| author2 |
Pessi, Priscila Jael Fraser, M. Ertini, Keila Yael Martinez, Veronica Laura Hoeflich, Peter Hsiao, Eric Folatelli, Gaston Ashall, Chris Phillips, Mark Anderson, J. P. Bersten, Melina Cecilia Englert, B. Fisher, A. Benetti, S. Simaz Bunzel, Adolfo Burns, Christopher R. Chen, T. W. Contreras, Carlos Elias Rosa, N. Falco, E. Galbany, Lluís Kirshner, Robert Kumar, S. Lu, J. Lyman, D. Marion, G. H. Mattila, S. Maund, J. Morrell, Nidia Irene Serón, J. Stritzinger, Maximilian Shahbandeh, Melissa Sullivan, Mark Suntzeff, N. B. Young, D. R. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Core-collapse supernovae Type II supernovae Late stellar evolution |
| topic |
Core-collapse supernovae Type II supernovae Late stellar evolution |
| 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 the optical and near-infrared (NIR) spectra of SN 2013ai along with its light curves. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining Type II supernova (SN II) with an unusually long rise time, 18.9 2.7 days in the V-band, and a bright V-band peak absolute magnitude of -18.7 0.06 mag. The spectra are dominated by hydrogen features in the optical and NIR. The spectral features of SN 2013ai are unique in their expansion velocities, which, when compared to large samples of SNe II, are more than 1,000 km s-1 faster at 50 days past explosion. In addition, the long rise time of the light curve more closely resembles SNe IIb rather than SNe II. If SN 2013ai is coeval with a nearby compact cluster, we infer a progenitor zero-age main-sequence mass of ∼17 M o˙. After performing light-curve modeling, we find that SN 2013ai could be the result of the explosion of a star with little hydrogen mass, a large amount of synthesized 56Ni, 0.3-0.4 M o˙, and an explosion energy of 2.5-3.0 1051 erg. The density structure and expansion velocities of SN 2013ai are similar to those of the prototypical SN IIb, SN 1993J. However, SN 2013ai shows no strong helium features in the optical, likely due to the presence of a dense core that prevents the majority of γ-rays from escaping to excite helium. Our analysis suggests that SN 2013ai could be a link between SNe II and stripped-envelope SNe. Fil: Davis, Scott. University of California; Estados Unidos Fil: Pessi, Priscila Jael. 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: Fraser, M.. University College Dublin; Irlanda Fil: Ertini, Keila Yael. 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: Martinez, Veronica Laura. 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: Hoeflich, Peter. Florida State University; Estados Unidos Fil: Hsiao, Eric. Florida State University; Estados Unidos 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: Ashall, Chris. University of Hawaii at Manoa; Estados Unidos Fil: Phillips, Mark. Carnegie Observatories. Las Campanas Observatory; Chile Fil: Anderson, J. P.. European Southern Observatory Chile; Chile Fil: Bersten, Melina Cecilia. 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: Englert, B.. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina Fil: Fisher, A.. Florida State University; Estados Unidos Fil: Benetti, S.. Osservatorio Astronomico di Padova; Italia Fil: Simaz Bunzel, Adolfo. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina Fil: Burns, Christopher R.. Observatories of the Carnegie Institution for Science; Estados Unidos Fil: Chen, T. W.. Stockholm University; Suecia Fil: Contreras, Carlos. 9Carnegie Observatories. Las Campanas Observatory; Chile Fil: Elias Rosa, N.. Osservatorio Astronomico di Padova; Italia Fil: Falco, E.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Galbany, Lluís. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Kirshner, Robert. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Kumar, S.. Florida State University; Estados Unidos Fil: Lu, J.. Florida State University; Estados Unidos Fil: Lyman, D.. University of Warwick; Reino Unido Fil: Marion, G. H.. University of Warwick; Reino Unido Fil: Mattila, S.. University of Turku; Finlandia Fil: Maund, J.. University of Sheffield; Reino Unido Fil: Morrell, Nidia Irene. Carnegie Observatories. Las Campanas Observatory; Chile Fil: Serón, J.. University of Sheffield; Reino Unido Fil: Stritzinger, Maximilian. Aarhus University; Dinamarca Fil: Shahbandeh, Melissa. Florida State University; Estados Unidos Fil: Sullivan, Mark. Aarhus University; Dinamarca Fil: Suntzeff, N. B.. Texas A&M University; Estados Unidos Fil: Young, D. R.. Texas A&M University; Estados Unidos |
| description |
We present a study of the optical and near-infrared (NIR) spectra of SN 2013ai along with its light curves. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining Type II supernova (SN II) with an unusually long rise time, 18.9 2.7 days in the V-band, and a bright V-band peak absolute magnitude of -18.7 0.06 mag. The spectra are dominated by hydrogen features in the optical and NIR. The spectral features of SN 2013ai are unique in their expansion velocities, which, when compared to large samples of SNe II, are more than 1,000 km s-1 faster at 50 days past explosion. In addition, the long rise time of the light curve more closely resembles SNe IIb rather than SNe II. If SN 2013ai is coeval with a nearby compact cluster, we infer a progenitor zero-age main-sequence mass of ∼17 M o˙. After performing light-curve modeling, we find that SN 2013ai could be the result of the explosion of a star with little hydrogen mass, a large amount of synthesized 56Ni, 0.3-0.4 M o˙, and an explosion energy of 2.5-3.0 1051 erg. The density structure and expansion velocities of SN 2013ai are similar to those of the prototypical SN IIb, SN 1993J. However, SN 2013ai shows no strong helium features in the optical, likely due to the presence of a dense core that prevents the majority of γ-rays from escaping to excite helium. Our analysis suggests that SN 2013ai could be a link between SNe II and stripped-envelope SNe. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-03 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/146107 Davis, Scott; Pessi, Priscila Jael; Fraser, M.; Ertini, Keila Yael; Martinez, Veronica Laura; et al.; SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae; IOP Publishing; Astrophysical Journal; 909; 2; 3-2021; 1-24 0004-637X CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/146107 |
| identifier_str_mv |
Davis, Scott; Pessi, Priscila Jael; Fraser, M.; Ertini, Keila Yael; Martinez, Veronica Laura; et al.; SN 2013ai: a link between Hydrogen-rich and Hydrogen-poor Core-collapse Supernovae; IOP Publishing; Astrophysical Journal; 909; 2; 3-2021; 1-24 0004-637X CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/abdd36 info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/abdd36 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
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IOP Publishing |
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IOP Publishing |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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