4 papers
Seeking the Progenitors of Type Ia Supernovae
Ferdinando Patat
The nature of the progenitor system[s] of Type Ia Supernovae is still unclear. In this contribution I review the projects that have been undertaken to answer this question and the…
Detection of circumstellar material in a normal Type Ia Supernova
F. Patat, P. Chandra, R. Chevalier +19
Type Ia supernovae are thought to be thermonuclear explosions of accreting white dwarfs that reach a critical mass limit. Despite their importance as cosmological distance indicato…
Constraints on Type Ib/c and GRB Progenitors
C. L. Fryer, P. A. Mazzali, J. Prochaska +14
Although there is strong support for the collapsar engine as the power source of long-duration gamma-ray bursts (GRBs), we still do not definitively know the progenitor of these ex…
A New Population of High Redshift Short-Duration Gamma-Ray Bursts
E. Berger, D. B. Fox, P. A. Price +23
The redshift distribution of the short-duration GRBs is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine…