Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..493l&link_type=abstract
In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 1: X Ray Binaries p 493-498 (SEE N90-25711 19-89)
Astronomy and Astrophysics
Astronomy
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
Scientific paper
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.
Leahy Denis A.
Matsuoka Masaru
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