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Evidence for a sub-Chandrasekhar-mass type Ia supernova in the Ursa Minor dwarf galaxys

Autor
McWilliam, A.; Piro, A.; Badenes, C.; Bravo, E.
Tipus d'activitat
Article en revista
Revista
Astrophysical journal
Data de publicació
2018-04-19
Volum
857
Número
2
Pàgina inicial
97.1
Pàgina final
97.17
DOI
https://doi.org/10.3847/1538-4357/aab772 Obrir en finestra nova
Projecte finançador
Las estrellas de masa baja e intermedia como motores de la evolución química de galaxias, progenitores de supernovas termonucleares y laboratorio de astropartículas
Repositori
http://hdl.handle.net/2117/116620 Obrir en finestra nova
URL
http://iopscience.iop.org/article/10.3847/1538-4357/aab772/meta Obrir en finestra nova
Resum
A long-standing problem is identifying the elusive progenitors of Type Ia supernovae (SNe Ia), which can roughly be split into Chandraksekhar and sub-Chandrasekhar-mass events. An important difference between these two cases is the nucleosynthetic yield, which is altered by the increased neutron excess in Chandrasekhar progenitors due to their pre-explosion simmering and high central density. Based on these arguments, we show that the chemical composition of the most metal-rich star in the Ursa ...
Citació
McWilliam, A., Piro, A., Badenes, C., Bravo, E. Evidence for a sub-Chandrasekhar-mass type Ia supernova in the Ursa Minor dwarf galaxys. "Astrophysical journal", 19 Abril 2018, vol. 857, núm. 2, p. 97.1-97.17.
Paraules clau
Abundances - stars: abundances - Supernovae: general, Galaxies: dwarf - nuclear reactions, Nucleosynthesis

Participants

  • McWilliam, Andrew  (autor)
  • Piro, Anthony  (autor)
  • Badenes, Carles  (autor)
  • Bravo Guil, Eduardo  (autor)

Arxius