Abstract
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 explosions. Here we review the current set of progenitor scenarios for long-duration GRBs and the observational constraints on these scenarios. Examining these models, we find that single stars cannot be the only progenitor for long-duration GRBs. Several binary progenitors can match the solid observational constraints and also have the potential to match the trends that we are currently seeing in the observations. Type Ib/c supernovae are also likely to be produced primarily in binaries; we discuss the relationship between the progenitors of these explosions and those of the long-duration GRBs.
| Original language | English |
|---|---|
| Pages (from-to) | 1211-1232 |
| Number of pages | 22 |
| Journal | Publications of the Astronomical Society of the Pacific |
| Volume | 119 |
| Issue number | 861 |
| DOIs | |
| Publication status | Published - Nov 2007 |
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