The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 38 Issue 1
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- Pages.77.2-77.2
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- 2013
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- 1226-2692(pISSN)
Particle capture by radiation drag around a highly luminous compact stars
- Oh, Jae Sok (Astronomy and Space Technology R&D Division, KASI) ;
- Park, Chan (Astronomy and Space Technology R&D Division, KASI) ;
- Kim, Hongsu (Advanced Astronomy and Space Science Division, KASI)
- Published : 2013.04.11
Abstract
xIn the present work, we explored the effect of the radiation on the effective impact parameter for capture in a fully general relativistic manner. To summarize our results, evidently due to the radiation drag (the Poynting-Robertson effect), critical impact parameter of point particle gets larger by the factor of two, thus, the effective cross section of the luminous relativistic star becomes 4 times larger than that of the star without radiation emission. In addition, the finite size effect of the star adds up to this growth of the effective cross section.
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