Line Spectrum from Accretion-Disk Winds

この論文にアクセスする

この論文をさがす

著者

抄録

Prompted by the discovery of pair-annihilation lines in Nova Muscae 1991, we calculated the emission line spectra of optically thin winds emanating from the inner region of a geometrically thin accretion disk.The line profiles are generally double peaked, partly due to the configuration of the winds, and partly due to the rotational motion of the winds. Blue peaks are enhanced due to the Doppler beaming. The lines are broad when the emission region is in the vicinity of the disk where the rotation is large, whereas they are narrow when the emission height is far from the disk. Furthermore, the line-center is generally shifted blueward due to the Doppler effect, except for the case with high inclination angles, in which the transverse redshift (plus gravitational redshift) overcomes the Doppler blueshift. The model profiles were compared with the observed pair-annihilation lines in X-ray Nova Muscae 1991, which showed the red-shifted linecenter.If the annihilation lines of Nova Muscae originated from the (pair) winds from the inner accretion disks, we can thus conclude that the emission height would be several tens of the Schwarzschild radius, andthat the disk is nearly edge-on to observers.

収録刊行物

  • PASJ : publications of the Astronomical Society of Japan  

    PASJ : publications of the Astronomical Society of Japan 47(5), 639-643, 1995-10-25 

    Astronomical Society of Japan

参考文献:  12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)
    10002593530
  • 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
    3635886
  • NDL 刊行物分類
    MB0(宇宙科学)
  • 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