Artículo
The explosion of supernova 2011fe in the frame of the core-degenerate scenario (Letter)
Fecha de publicación:
01/2014
Editorial:
Wiley
Revista:
Monthly Notices Of The Royal Astronomical Society
ISSN:
0035-8711
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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 the WD 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.
Palabras clave:
Supernovae
,
Sn 2011fe (Supernova)
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Identificadores
Colecciones
Articulos(IALP)
Articulos de INST.DE ASTROFISICA LA PLATA
Articulos de INST.DE ASTROFISICA LA PLATA
Citación
Soker, Noam; García Berro, Enrique; Althaus, Leandro Gabriel; The explosion of supernova 2011fe in the frame of the core-degenerate scenario (Letter); Wiley; Monthly Notices Of The Royal Astronomical Society; 437; 1; 1-2014; 66-70
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