Relativistic effects on radiative ejection of coronae in variable X-ray sources

Relativistic effects on radiative ejection of coronae in variable X-ray sources

Bhupendra Mishra and Włodek Kluźniak

We discuss coronal ejection in a general relativistic calculation of the motion of a test particle in a spherically symmetric radiation field. At every radial distance from the star larger than that of the ISCO, and any initial luminosity of the star, there exists a luminosity change which leads to coronal ejection. Mildly fluctuating luminosity will lead to dissipation in the plasma and may explain the observed X-ray temperatures of coronae in low mass X-ray binaries (LMXBs). At large radial distances from the star (3 * 103RG or more) the results do not depend on whether or not Poynting-Robertson drag is included in the calculation.

Proceedings of the Polish Astronomical Society, vol. 1, 144-147 (2014)

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