Radiative Disk Winds in Supersoft X-Ray Sources

Details Radiative Disk Winds in Supersoft X-Ray Sources Radiative Disk Winds in Supersoft X-Ray Sources

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasj...50..367h&link_type=abstract

Publications of the Astronomical Society of Japan, v.50, p.367-372.

Astronomy and Astrophysics

Astronomy

7

Accretion Disks, Radiation Processes, Ssxss, Stars: Cataclysmic, Stars: Winds}%

Scientific paper

Since they depend on inclination angles, P Cyg profiles observed in CVs strongly suggest the existence of accretion disk winds in CVs. Recently, X-ray observations revealed bipolar outflows in SSXSs. The wind velocity measured in these observations is about 3000--5000 km s(-1) , which is of the order of the escape velocity of white dwarfs. Hence, it is supposed that the winds originate from the inner disk and/or the boundary layers between the disk and white dwarf. % We examined radiatively-accelerated accretion-disk winds, and found that the terminal speed of the wind emanating from the inner disk becomes ~ 0.6 sqrt {GM/R_star }, where M is the white dwarf mass and R_star the inner radius of the disk (= the white dwarf radius).

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