The explosion of supernova 2011fe in the frame of the core-degenerate scenario

We argue that the properties of the Type Ia supernova (SN Ia) SN 2011fe can be best explained within the frame of the core-degenerate (CD) scenario. In the CD scenario, a white dwarf (WD) merges with the core of an asymptotic giant branch (AGB) star and forms a rapidly rotating WD, with a mass close...

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Detalles Bibliográficos
Autores principales: Soker, Noam, García Berro, Enrique, Althaus, Leandro Gabriel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Astronómicas
Supernovae: Individual: Sn 2011fe
Supernovae: General
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85234
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85234
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Supernovae: Individual: Sn 2011fe
Supernovae: General
spellingShingle Ciencias Astronómicas
Supernovae: Individual: Sn 2011fe
Supernovae: General
Soker, Noam
García Berro, Enrique
Althaus, Leandro Gabriel
The explosion of supernova 2011fe in the frame of the core-degenerate scenario
topic_facet Ciencias Astronómicas
Supernovae: Individual: Sn 2011fe
Supernovae: General
description We argue that the properties of the Type Ia supernova (SN Ia) SN 2011fe can be best explained within the frame of the core-degenerate (CD) scenario. In the CD scenario, a white dwarf (WD) merges with the core of an asymptotic giant branch (AGB) star and forms a rapidly rotating WD, with a mass close to and above the critical mass for explosion. Rapid rotation prevents immediate collapse and/or explosion. Spinning down over a time of 0-10<SUP>10</SUP> yr brings theWD to explosion. A very long delayed explosion to post-crystallization phase, which lasts for about 2 × 10<SUP>9</SUP> yr, leads to the formation of a highly carbon-enriched outer layer. This can account for the carbon-rich composition of the fastest-moving ejecta of SN 2011fe. In reaching the conclusion that the CD scenario best explains the observed properties of SN 2011fe, we consider both its specific properties, like a very compact exploding object and carbon-rich composition of the fastest-moving ejecta, and the general properties of SNe Ia.
format Articulo
Articulo
author Soker, Noam
García Berro, Enrique
Althaus, Leandro Gabriel
author_facet Soker, Noam
García Berro, Enrique
Althaus, Leandro Gabriel
author_sort Soker, Noam
title The explosion of supernova 2011fe in the frame of the core-degenerate scenario
title_short The explosion of supernova 2011fe in the frame of the core-degenerate scenario
title_full The explosion of supernova 2011fe in the frame of the core-degenerate scenario
title_fullStr The explosion of supernova 2011fe in the frame of the core-degenerate scenario
title_full_unstemmed The explosion of supernova 2011fe in the frame of the core-degenerate scenario
title_sort explosion of supernova 2011fe in the frame of the core-degenerate scenario
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85234
work_keys_str_mv AT sokernoam theexplosionofsupernova2011feintheframeofthecoredegeneratescenario
AT garciaberroenrique theexplosionofsupernova2011feintheframeofthecoredegeneratescenario
AT althausleandrogabriel theexplosionofsupernova2011feintheframeofthecoredegeneratescenario
AT sokernoam explosionofsupernova2011feintheframeofthecoredegeneratescenario
AT garciaberroenrique explosionofsupernova2011feintheframeofthecoredegeneratescenario
AT althausleandrogabriel explosionofsupernova2011feintheframeofthecoredegeneratescenario
bdutipo_str Repositorios
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