Radiative Winds in Supersoft X-Ray Sources with Passive Disks

この論文にアクセスする

この論文をさがす

著者

抄録

In supersoft X-ray sources (SSXSs) the central source, which is supposed to be a nuclear-burning white dwarf, is very luminous. In such a case the central luminosity (nuclear energy) dominates the disk luminosity (accretion energy). Therefore, the surrounding disk is not active, but passive, in the sense that irradiation heating dominates viscous heating. We examined the radiative environment and radiatively acceleratedwinds in such luminous SSXSs with passive disks. The radiation fields are generally enhanced in the polar direction due to the existence of the disk. We found that the wind configuration bifurcates according tothe origin of wind gas; the wind tends to be a polar flow if it originates from the central star, whereas it becomes equatorial flow if it originates from the disk. The latter disk winds blow off the surface of the disk, confined in the vertical direction by the radiation fields. In both cases the terminal speed of the wind is of the order of sqrt(GM(Gamma - 1)/R), where M is the white-dwarf mass, R the white-dwarf radius, and Gamma the white-dwarf luminosity normalized by the Eddington luminosity. The polar flow is slightly faster than the equatorial flow, reflecting the bipolarity of radiation fields and the mass evaporation from the disk.

収録刊行物

  • PASJ : publications of the Astronomical Society of Japan  

    PASJ : publications of the Astronomical Society of Japan 51(2), 185-196, 1999-04-25 

    Astronomical Society of Japan

参考文献:  19件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002601603
  • NII書誌ID(NCID)
    AA1082896X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00046264
  • NDL 記事登録ID
    4710335
  • NDL 雑誌分類
    ZM33(科学技術--宇宙科学)
  • NDL 請求記号
    Z53-A296
  • データ提供元
    CJP書誌  NDL  IR 
ページトップへ