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
相关论文
共 50 条
  • [41] QUASI-PERIODIC OSCILLATIONS IN LUMINOUS ACCRETION DISKS
    OKUDA, T
    MINESHIGE, S
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 249 (04) : 684 - 692
  • [42] On the high coherence of kHz quasi-periodic oscillations
    Barret, D
    Kluzniak, W
    Olive, JF
    Paltani, S
    Skinner, GK
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 357 (04) : 1288 - 1294
  • [43] TT Ari and its Quasi-Periodic Oscillations
    Smak, J.
    ACTA ASTRONOMICA, 2014, 64 (02): : 167 - 175
  • [44] Autoregressive spectral estimation for quasi-periodic oscillations
    Chen, L
    Li, TP
    CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2005, 5 (05): : 495 - 507
  • [45] Autoregressive Spectral Estimation for Quasi-Periodic Oscillations
    Li Chen and Ti-Pei Li Department of Astronomy
    Center for Astrophysics
    Chinese Journal of Astronomy and Astrophysics, 2005, (05) : 55 - 67
  • [46] Models of kilohertz quasi-periodic brightness oscillations
    Miller, MC
    ACCRETION PROCESSES IN ASTROPHYSICAL SYSTEMS: SOME LIKE IT HOT!, 1998, (431): : 371 - 380
  • [47] Specific heat oscillations in quasi-periodic structures
    da Silva, LR
    Vallejos, RO
    Mendes, RS
    CHAOS SOLITONS & FRACTALS, 2002, 13 (03) : 539 - 544
  • [48] A THEORY FOR QUASI-PERIODIC OSCILLATIONS OBSERVED IN IONOSPHERE
    JONES, WL
    JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1970, 32 (09): : 1555 - &
  • [49] Quasi-periodic oscillations from magnetorotational turbulence
    Arras, Phil
    Blaes, Omer
    Turner, Neal J.
    ASTROPHYSICAL JOURNAL, 2006, 645 (01): : L65 - L68
  • [50] Oscillations and chaos in driven quasi-periodic oscillators
    Belhaq, M
    Houssni, M
    CONTROL OF OSCILLATIONS AND CHAOS - 1997 1ST INTERNATIONAL CONFERENCE, PROCEEDINGS, VOLS 1-3, 1997, : 146 - 147