Properties of Circumstellar Matter in GX:301-2 Observed by TENMA
Abstract
High resolution spectral observations of the X-ray pulsar GX301-2 by Tenma are analyzed. The X-ray spectrum and the changes that occur as a function of pulse phase GX301-2 has the largest observed column densities of all the X-ray pulsars. The effects caused by scattering in the circumstellar material are modeled in part analytically and in part by Monte Carlo simulations. Scattering effects can account for a significant part of the observed variations in spectrum. The source of radiation from the neutron star must have intrinsic variations. The variations of the spectrum and its implications are discussed.
- Publication:
-
Two Topics in X-Ray Astronomy, Volume 1: X Ray Binaries. Volume 2: AGN and the X Ray Background
- Pub Date:
- November 1989
- Bibcode:
- 1989ESASP.296..493L
- Keywords:
-
- Light Curve;
- Pulsars;
- Pulsed Radiation;
- Satellite Observation;
- Stellar Envelopes;
- Iron;
- Line Spectra;
- Monte Carlo Method;
- Neutron Stars;
- Pulse Amplitude;
- Pulse Rate;
- X Ray Scattering;
- X Ray Spectra;
- Astronomy