THE IMPACT OF A HIGH-VELOCITY CLOUD ONTO THE GALACTIC DISK

被引：0
|
作者：
KERP, J [1 ]
LESCH, H [1 ]
MACK, KH [1 ]
机构：
[1] MAX PLANCK INST RADIOASTRON, D-53121 BONN, GERMANY
来源：
ASTRONOMY & ASTROPHYSICS | 1994年 / 286卷 / 01期
关键词：
GALAXY; HALO; MHD; RADIO CONTINUUM; ISM; X-RAYS; GENERAL;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present ROSAT and radio observations of a high velocity cloud (HVC) which encounters the Milky Way. At the edges of the HVC90.5+42.5-130 X-ray emitting gas (with T(e) congruent-to 2 . 10(6) K) as well as relativistic electrons and magnetic fields (traced by non-thermal radio continuum emission) exist. We propose that the kinetic energy of the HVC is effectively transferred into heat via magnetic drag. The field lines are compressed, turbulently mixed and dissipated via magnetic reconnection, i.e. electric currents.
引用
收藏
页码：L13 / L16
页数：4
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