Evolution of progenitor stars of Type Ibc supernovae and long gamma-ray bursts

Details Evolution of progenitor stars of Type Ibc supernovae and long gamma-ray bursts Evolution of progenitor stars of Type Ibc supernovae and long gamma-ray bursts

2008-01-28

arxiv.org/abs/0801.4362v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures, to appear in IAU Symp. 250, Massive Stars as Cosmic Engines, Kauai (HI), 12/2007, ed. F. Bresolin, P. Crow

Scientific paper

10.1017/S174392130802053X

We discuss how rotation and binary interactions may be related to the diversity of type Ibc supernovae and long gamma-ray bursts. After presenting recent evolutionary models of massive single and binary stars including rotation, the Tayler-Spruit dynamo and binary interactions, we argue that the nature of SNe Ibc progenitors from binary systems may not significantly differ from that of single star progenitors in terms of rotation, and that most long GRB progenitors may be produced via the quasi-chemically homogeneous evolution at sub-solar metallicity. We also briefly discuss the possible role of magnetic fields generated in the convective core of a massive star for the transport of angular momentum, which is potentially important for future stellar evolution models of supernova and GRB progenitors.

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