X-rays from comets generated by energetic solar wind particles

被引：93

作者：

Wegmann, R ^{[1
]}

Schmidt, HU

Lisse, CM

Dennerl, K

Englhauser, J

机构：

[1] Max Planck Inst Astrophys, D-85748 Garching, Germany

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20742 USA

[3] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany

来源：

PLANETARY AND SPACE SCIENCE | 1998年 / 46卷 / 05期

关键词：

D O I：

10.1016/S0032-0633(97)00196-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

By means of axisymmetric hydrodynamic models with chemistry we study the X-ray emission of two processes in a comet : Bremsstrahlung of solar wind electrons interacting with the neutral gas coma, and :charge exchange of heavy solar wind ions in high ionization states with the neutral cometary gas. Comparisons of morphology, intensity and spectrum with observations favour heavy ions as the emitting agent (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：603 / 612

页数：10

共 21 条

[11]

HEFTI S, 1997, THESIS U BERN

[12]

Heitler W., 1954, QUANTUM THEORY RAD

[13] Discovery of x-ray and extreme ultraviolet emission from comet C/Hyakutake 1996 B2 [J].