PHOTOSPHERIC EMISSION FROM GAMMA-RAY BURSTS

被引:0
作者
Axelsson, M. [1 ]
机构
[1] Stockholm Univ, Dept Phys, Oskar Klein Ctr, S-10691 Stockholm, Sweden
来源
GAMMA-RAY BURSTS: 15 YEARS OF GRB AFTERGLOWS - PROGENITORS, ENVIRONMENTS AND HOST GALAXIES FROM THE NEARBY TO THE EARLY UNIVERSE | 2013年 / 61卷
关键词
SPECTRAL COMPONENT; PROMPT EMISSION; GRB; ENERGY;
D O I
10.1051/eas/1361006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In spite of extensive research over the past decades, a complete physical picture of the origin of the prompt gamma-ray burst emission is still lacking. During recent years, evidence has been accumulating that the jet photosphere plays an important role. In this paper we summarize the lessons learned from Fermi observations regarding the behavior of the photosphere and discuss why photospheric emission does not necessarily appear as blackbody radiation. We concentrate on two strong and important bursts, GRB 090902B and GRB 110721A, which serve as examples of the standard appearance photospheric emission may have in gamma-ray burst spectra.
引用
收藏
页码:53 / 57
页数:5
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