Simulations of quasi-periodic oscillations in accreting white dwarfs

被引:10
|
作者
Wu, KW
Pongracic, H
Chanmugam, G
Shaviv, G
机构
[1] LOUISIANA STATE UNIV,DEPT PHYS & ASTRON,BATON ROUGE,LA 70803
[2] TECHNION ISRAEL INST TECHNOL,DEPT PHYS,IL-32000 HAIFA,ISRAEL
[3] TECHNION ISRAEL INST TECHNOL,ASHER SPACE RES INST,IL-32000 HAIFA,ISRAEL
来源
关键词
accretion; accretion disks; shock waves; stars; binaries; close; white dwarfs;
D O I
10.1017/S1323358000020609
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The stability of accretion shocks in magnetic white dwarfs is investigated. Shock oscillations are simulated numerically, and in the simulations bremsstrahlung and cyclotron cooling are considered in an explicit form. We have found that for shocks with magnetic fields lower than 10 MG, shock oscillations can be sustained; while for magnetic fields greater than 20 MG, the oscillations are suppressed.
引用
收藏
页码:93 / 96
页数:4
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