Continuum-Driven High-Velocity X-ray Winds

Details Continuum-Driven High-Velocity X-ray Winds Continuum-Driven High-Velocity X-ray Winds

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.2623e&link_type=abstract

American Astronomical Society, HEAD meeting #8, #26.23; Bulletin of the American Astronomical Society, Vol. 36, p.962

Astronomy and Astrophysics

Astronomy

Scientific paper

Reports of blueshifted X-ray absorption lines with v outflow ≳ 0.1c have been reported by Pounds et al. (PG 1211+143, PG 0844+349), Reeves et al. (PDS 456), and Chartas et al. (APM 08279+5255, PG 1115+080). For the case of PG 1211+143, King & Pounds (2003) have proposed that the large column (NH ≈ 5 × 1023 cm-2) of highly ionized gas is accelerated by continuum-driving, and launched from r ≈ 150 R Schwarzschild, where the escape velocity is of order 0.1c. We test simple models to determine whether such columns can be accelerated to the observed velocities by using Cloudy photoionization simulations and numerical integrations of a continuum-driven radial outflow. We also report on the observational signatures of such an wind. This work is supported by the Natural Sciences and Engineering Research Council of Canada.

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