Light curve simulation of x-ray binaries in presence of stellar wind
Abstract
The document provides a detailed discussion of simulating X ray light curves from a close X ray binary system, which consists of a compact object accreting matter from a normal companion star orbiting around a common center of mass in the presence of a radiation-driven stellar wind. The model calculates the column integrals of the absorbing material at different phase values around the orbit in the stellar wind along the line of sight joining the emitter which is an accretion disk and the observer. The column integral values are then processed to calculate the flux values considering neutral hydrogen as the absorber and ignoring scattering and ionization effects on the emitted light. The generated light curves are then compared with the observed Chandra data of TC 10 X1. The light curves are generated in different energy bands for the cases of a constant outflow velocity wind and a constant accelerating wind. The obtained light curves from the model showed energy dependence and showed difference in case of constant velocity wind and constant accelerating wind. The model also seemed to confirm the idea that the compact object in IC 10 X1 may have been eclipsed by a thick core of the companion wind instead of a physical eclipse.
- Publication:
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Masters Thesis
- Pub Date:
- November 2017
- Bibcode:
- 2017MsT.........37P
- Keywords:
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- Astrophysics;Astronomy;Physics