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arXiv 0906.0800astro-ph.HE
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恒星-吸积盘碰撞产生的准周期耀斑

Quasi-Periodic Flares from Star-Accretion Disc Collisions

Lixin Dai, Steven V. Fuerst, Roger Blandford

摘要:

本文模拟了恒星与超大质量黑洞及其吸积盘的非弹性碰撞产生的准周期耀斑。我们发现,准周期性的行为受到影响的质量和自旋的黑洞和恒星轨道的轨道根。我们还评估了从这些准周期信号中提取有用信息的可能性,并验证了克尔度量的性质。与观测到的OJ 287的光学爆发,从银河系中心的红外耀斑和X射线变化RE J1034+396的比较。

英文摘要:

We present simulated results of quasi-periodic flares generated by the inelastic collisions of a star bound to a super-massive black hole (SMBH) and its attendant accretion disc. We show that the behavior of the quasi-periodicity is affected by the mass and spin of the black hole and the orbital elements of the stellar orbit. We also evaluate the possibility of extracting useful information on these parameters and verifying the character of the Kerr metric from such quasi-periodic signals. Comparisons are made with the observed optical outbursts of OJ287, infrared flares from the Galactic center and X-ray variability in RE J1034+396.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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