Pair-Instability Supernovae at the Epoch of Reionization

Details Pair-Instability Supernovae at the Epoch of Reionization Pair-Instability Supernovae at the Epoch of Reionization

2011-12-12

arxiv.org/abs/1112.2710v3

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

12 pages, 11 figures. Matches MNRAS accepted version

Scientific paper

Pristine stars with masses between ~140 and 260 M_sun are theoretically predicted to die as pair-instability supernovae. These very massive progenitors could come from Pop III stars in the early universe. We model the light curves and spectra of pair-instability supernovae over a range of masses and envelope structures. At redshifts of reionization z >= 6, we calculate the rates and detectability of pair-instability and core collapse supernovae, and show that with the James Webb Space Telescope, it is possible to determine the contribution of Pop III and Pop II stars toward reionization by constraining the stellar initial mass function at that epoch using these supernovae. We also find the rates of Type Ia supernovae, and show that they are not rare during reionization, and can be used to probe the mass function at 4-8 M_sun. If the budget of ionizing photons was dominated by contributions from top-heavy Pop III stars, we predict that the bright end of the galaxy luminosity function will be contaminated by pair-instability supernovae.

Affiliated with

Also associated with

No associations

Rating

Pair-Instability Supernovae at the Epoch of Reionization does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pair-Instability Supernovae at the Epoch of Reionization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pair-Instability Supernovae at the Epoch of Reionization will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-484854