Globular clusters as testbeds for type Ia supernovae

Eric Pfahl, Evan Scannapieco, Lars Bildsten

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Fundamental mysteries remain regarding the physics of Type Ia supernovae (SNIa) and their stellar progenitors. We argue here that important clues to these questions may emerge by the identification of those SNIa that occur in extragalactic globular clusters-stellar systems with well-defined ages and metallicities. We estimate an all-sky rate of 0.1η(D/100 Mpc)3 yr-1 for SNIa in globular clusters within a distance D, where η is the rate enhancement per unit mass as a result of dynamical production channels that are inaccessible in the galactic field. If η 2-10, as suggested by observations and theory, the combined efforts of accurate supernova astrometry and deep follow-up imaging should identify the ≳1% of nearby (D < 100 Mpc) SNIa that occur in globular clusters.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume695
Issue number1
DOIs
StatePublished - 2009

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globular clusters
supernovae
stellar systems
physics
astrometry
metallicity
sky
augmentation
estimates
rate

Keywords

  • Galaxies: general
  • Globular clusters: general
  • Supernovae: general

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Globular clusters as testbeds for type Ia supernovae. / Pfahl, Eric; Scannapieco, Evan; Bildsten, Lars.

In: Astrophysical Journal, Vol. 695, No. 1, 2009.

Research output: Contribution to journalArticle

Pfahl, Eric ; Scannapieco, Evan ; Bildsten, Lars. / Globular clusters as testbeds for type Ia supernovae. In: Astrophysical Journal. 2009 ; Vol. 695, No. 1.
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