Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1

Details Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1 Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1

2001-11-24

arxiv.org/abs/astro-ph/0111464v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, in X-ray Emission from Accretion onto Black Holes, Proceedings of a joint workshop held by the Center for

Scientific paper

Using the Chandra High Energy Transmission Grating Spectrometer (HETGS), we have found significant absorption features in the X-ray spectrum of Cyg X-1 taken in the continuous clocking mode. These features include resonance lines of He-like ions of S, Si, and Mg; the Ly alpha lines of H-like S, Si, Mg, and Ne; and several lower ionization lines of Fe XX, XXII, and XXIV. Preliminary analysis shows that the lines are resolved in many cases, giving line widths of order 300 km/s and are redshifted by 460 +/- 10 km/s. These features are interpreted in the context of an accreting stellar wind model that is ionized by the X-ray source. In addition, there are clear absorption features due to neutral Mg, Fe, and O in the interstellar medium.

Affiliated with

Also associated with

No associations

Rating

Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Highly Ionized Absorption in the X-ray Spectrum of Cyg X-1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-178330