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arXiv · astro-ph/0702338

Constraints on Type Ib/c and GRB Progenitors

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, we find that single-star models 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 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.

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C. L. Fryer, P. A. Mazzali, J. Prochaska, E. Cappellaro, A. Panaitescu, E. Berger, M. van Putten, E. P. J. van den Heuvel, P. Young, A. Hungerford, G. Rockefeller, S. -C. Yoon, P. Podsiadlowski, K. Nomoto, R. Chevalier, B. Schmidt, S. Kulkarni. 2007-02-13. Constraints on Type Ib/c and GRB Progenitors. https://doi.org/10.1086/523768

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