RELATIVISTIC FIREBALLS - ENERGY-CONVERSION AND TIME-SCALES

被引：672

作者：

REES, MJ ^{[1
]}

MESZAROS, P ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT ASTRON & ASTROPHYS,UNIV PK,PA 16802

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1992年 / 258卷 / 02期

基金：

美国国家航空航天局;

关键词：

RADIATION MECHANISMS COMPTON AND INVERSE COMPTON; RELATIVITY; SHOCK WAVES; CIRCUMSTELLAR MATTER; STARS NEUTRON; GAMMA RAYS BURSTS;

D O I：

10.1093/mnras/258.1.41P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The expansion energy of a relativistic fireball can be reconverted into radiation when ft interacts with an external medium. For expansion with Lorentz factors greater-than-or-similar-to 10(3) into a typical galactic environment, the corresponding time-scale in the frame of the observer is of the order of seconds. This mechanism would operate in any cosmological scenario of gamma-ray bursts invoking initial energies of order a per cent of a stellar rest mass, and implies photon energies and time-scales compatible with those observed in gamma-ray bursts.

引用

页码：P41 / P43

页数：3

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