ausblenden:
Schlagwörter:
Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Solar and Stellar Astrophysics, astro-ph.SR
Zusammenfassung:
Binary interactions, especially mass transfer and mergers, can strongly
influence the evolution of massive stars and change their final properties and
the occurrence of supernovae. Here, we investigate how binary interactions
affect predictions of the diffuse flux of neutrinos. By performing stellar
population syntheses including prescriptions for binary interactions, we show
that the resulting detection rates of the diffuse supernova neutrino background
is enhanced by 15-20% compared to estimates without binary considerations, but
this may be as large as 75%. The large range of possible enhancement is driven
by the presently sparse knowledge of the evolution of rapidly rotating
carbon-oxygen cores, especially those created as a result of mergers near the
white dwarf to core collapse boundary.
