Investigating dense interstellar environments in the X-rays
Abstract
We present the modelling of the silicon and magnesium absorption edges due to dust absorption along the line of sight of bright X-ray sources. The shape and observed energy of these edges may indeed reveal the composition and abundance of the intervening dust grains in different environments of our Galaxy. Here we present, as a test case, the interpretation of a high-quality spectrum of a bright X-ray binary, GX5-1, located in the vicinity of the Galactic Center. This spectroscopic study, performed using data from the Chandra-HETG, benefits from new laboratory data in the X-ray band of several silicate compounds, taken at the Soleil synchrotron facility in Paris.
- Publication:
-
The X-ray Universe 2014
- Pub Date:
- July 2014
- Bibcode:
- 2014xru..confE.338Z