COSMIC GAMMA-RAY BURST FROM INTER-GALACTIC RELATIVISTIC DUST GRAINS

被引：7

作者：

DASGUPTA, AK

机构：

[1] Dept. of Mathematics, University of Dundee

来源：

ASTROPHYSICS AND SPACE SCIENCE | 1979年 / 63卷 / 02期

关键词：

D O I：

10.1007/BF00638920

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Charged dust grains of radii a≃3×10-6∼3×10-5 cm may acquire relativistic energy (>1018 eV) in the intergalactic medium. In order to attain relativistic energy, dust grains have to move in and out ('scattering') of the magnetic field of the medium. A relativistic grain of radius a≤10-5 cm with Lorentz factor γ∼103 approaching the Earth will break up either due to electrostatic charge or due to sputtering about 150∼100 km, and may scatter solar photons via a fluorescence process. Dust grains may also melt into droplets in the solar vicinity and may contribute towards observed gamma-ray bursts. © 1979 D. Reidel Publishing Co.

引用

页码：517 / 523

页数：7

共 10 条

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