The type IIB supernova 2011DH from a supergiant progenitor

A set of hydrodynamical models based on stellar evolutionary progenitors is used to study the nature of SN 2011DH. Our modeling suggests that a large progenitor star - with R ∼ 200 R⊙ - is needed to reproduce the early light curve (LC) of SN 2011dh. This is consistent with the suggestion that the ye...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Bersten, Melina Cecilia, Benvenuto, Omar Gustavo, Nomoto, Ken'ichi, Ergon, Mattias, Folatelli, Gastón, Sollerman, Jesper, Benetti, Stefano, Botticella, Maria Teresa, Fraser, Morgan, Kotak, Rubina, Maeda, Keiichi, Ochner, Paolo, Tomasella, Lina
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Astronómicas
hydrodynamics
supernovae: general
supernovae: individual (SN 2011dh)
Hidrodinámica
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84642
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84642
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
hydrodynamics
supernovae: general
supernovae: individual (SN 2011dh)
Hidrodinámica
spellingShingle Ciencias Astronómicas
hydrodynamics
supernovae: general
supernovae: individual (SN 2011dh)
Hidrodinámica
Bersten, Melina Cecilia
Benvenuto, Omar Gustavo
Nomoto, Ken'ichi
Ergon, Mattias
Folatelli, Gastón
Sollerman, Jesper
Benetti, Stefano
Botticella, Maria Teresa
Fraser, Morgan
Kotak, Rubina
Maeda, Keiichi
Ochner, Paolo
Tomasella, Lina
The type IIB supernova 2011DH from a supergiant progenitor
topic_facet Ciencias Astronómicas
hydrodynamics
supernovae: general
supernovae: individual (SN 2011dh)
Hidrodinámica
description A set of hydrodynamical models based on stellar evolutionary progenitors is used to study the nature of SN 2011DH. Our modeling suggests that a large progenitor star - with R ∼ 200 R⊙ - is needed to reproduce the early light curve (LC) of SN 2011dh. This is consistent with the suggestion that the yellow super-giant star detected at the location of the supernova (SN) in deep pre-explosion images is the progenitor star. From the main peak of the bolometric LC and expansion velocities, we constrain the mass of the ejecta to be ≈2 M⊙, the explosion energy to be E = (6-10) × 1050 erg, and the 56NI mass to be approximately 0.06 M⊙. The progenitor star was composed of a helium core of 3-4 M⊙ and a thin hydrogen-rich envelope of ≈0.1M ⊙ with a main-sequence mass estimated to be in the range of 12-15 M⊙. Our models rule out progenitors with helium-core masses larger than 8 M⊙, which correspond to MZAMS ≳ 25M⊙. This suggests that a single star evolutionary scenario for SN 2011DH is unlikely.
format Articulo
Preprint
author Bersten, Melina Cecilia
Benvenuto, Omar Gustavo
Nomoto, Ken'ichi
Ergon, Mattias
Folatelli, Gastón
Sollerman, Jesper
Benetti, Stefano
Botticella, Maria Teresa
Fraser, Morgan
Kotak, Rubina
Maeda, Keiichi
Ochner, Paolo
Tomasella, Lina
author_facet Bersten, Melina Cecilia
Benvenuto, Omar Gustavo
Nomoto, Ken'ichi
Ergon, Mattias
Folatelli, Gastón
Sollerman, Jesper
Benetti, Stefano
Botticella, Maria Teresa
Fraser, Morgan
Kotak, Rubina
Maeda, Keiichi
Ochner, Paolo
Tomasella, Lina
author_sort Bersten, Melina Cecilia
title The type IIB supernova 2011DH from a supergiant progenitor
title_short The type IIB supernova 2011DH from a supergiant progenitor
title_full The type IIB supernova 2011DH from a supergiant progenitor
title_fullStr The type IIB supernova 2011DH from a supergiant progenitor
title_full_unstemmed The type IIB supernova 2011DH from a supergiant progenitor
title_sort type iib supernova 2011dh from a supergiant progenitor
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84642
work_keys_str_mv AT berstenmelinacecilia thetypeiibsupernova2011dhfromasupergiantprogenitor
AT benvenutoomargustavo thetypeiibsupernova2011dhfromasupergiantprogenitor
AT nomotokenichi thetypeiibsupernova2011dhfromasupergiantprogenitor
AT ergonmattias thetypeiibsupernova2011dhfromasupergiantprogenitor
AT folatelligaston thetypeiibsupernova2011dhfromasupergiantprogenitor
AT sollermanjesper thetypeiibsupernova2011dhfromasupergiantprogenitor
AT benettistefano thetypeiibsupernova2011dhfromasupergiantprogenitor
AT botticellamariateresa thetypeiibsupernova2011dhfromasupergiantprogenitor
AT frasermorgan thetypeiibsupernova2011dhfromasupergiantprogenitor
AT kotakrubina thetypeiibsupernova2011dhfromasupergiantprogenitor
AT maedakeiichi thetypeiibsupernova2011dhfromasupergiantprogenitor
AT ochnerpaolo thetypeiibsupernova2011dhfromasupergiantprogenitor
AT tomasellalina thetypeiibsupernova2011dhfromasupergiantprogenitor
AT berstenmelinacecilia typeiibsupernova2011dhfromasupergiantprogenitor
AT benvenutoomargustavo typeiibsupernova2011dhfromasupergiantprogenitor
AT nomotokenichi typeiibsupernova2011dhfromasupergiantprogenitor
AT ergonmattias typeiibsupernova2011dhfromasupergiantprogenitor
AT folatelligaston typeiibsupernova2011dhfromasupergiantprogenitor
AT sollermanjesper typeiibsupernova2011dhfromasupergiantprogenitor
AT benettistefano typeiibsupernova2011dhfromasupergiantprogenitor
AT botticellamariateresa typeiibsupernova2011dhfromasupergiantprogenitor
AT frasermorgan typeiibsupernova2011dhfromasupergiantprogenitor
AT kotakrubina typeiibsupernova2011dhfromasupergiantprogenitor
AT maedakeiichi typeiibsupernova2011dhfromasupergiantprogenitor
AT ochnerpaolo typeiibsupernova2011dhfromasupergiantprogenitor
AT tomasellalina typeiibsupernova2011dhfromasupergiantprogenitor
bdutipo_str Repositorios
_version_ 1764820489038987266

Ejemplares similares