Models of Long Gamma-Ray Burst Progenitors

被引：0
|
作者：
Yoon, Sung-Chul [1 ]
机构：
[1] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany
来源：
DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS | 2010年 / 1279卷
关键词：
Stars:rotation; Stars:evolution; Supernovae; CORE-COLLAPSE SUPERNOVAE; ROTATING MASSIVE STARS; VLT-FLAMES SURVEY; STELLAR EVOLUTION; PRESUPERNOVA EVOLUTION; NEUTRON-STARS; DYNAMO ACTION; BINARIES; PULSARS; MERGER;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We briefly review the current status of massive star evolution models including the effects of rotation and magnetic fields, and discuss possible evolutionary paths of massive stars towards long gamma-ray bursts. We also discuss the evolution of the first stars with rotation, and argue that the so-called chemically homogeneous evolution channel is most relevant for GRBs from the first generations of stars in the early universe. Our preliminary result indicates that PopIII GRB progenitors should have initial masses of about 20 - 60 M-circle dot and that super-collapsar from very massive stars (>similar to 250 M-circle dot) is not likely to occur.
引用
收藏
页码：69 / 76
页数：8
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