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arXiv 2602.23474astro-ph.HEastro-ph.SR
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瞬态X射线源作为具有致密伴星的极端偏心质量转移双星

Transient X-ray Sources as Extremely Eccentric Mass-Transfer Binaries with Compact Companions

Washington University(华盛顿大学)

Jonathan I. Katz, Michael A. Nowak

AI总结:

提出X射线瞬变源由恒星-致密天体偏心双星在近星点处的质量转移产生,并解释其轨道演化及周期性特征。

摘要:

长期以来,人们认为X射线瞬变源是由具有偏心轨道的恒星-致密天体双星在近星点处产生的。在近星点处,由转移物质产生的X射线蒸发恒星物质,其反冲增加了轨道半长轴和偏心率。经过近星点后,该天体将成为瞬态X射线源,类似于星系中的潮汐瓦解事件(TDE),但它是周期性的,且周期逐渐增加,而非灾难性的。

英文摘要:

It has long been suggested that X-ray transients are produced at periastron of stellar-compact object binaries with eccentric orbits. Recoil of matter evaporated from the star by X-rays from matter transferred at periastron increases the orbital semi-major axis and eccentricity. After periastrons the object would be a transient X-ray source, a Galactic analogue of a tidal disruption event (TDE), but recurrent with a gradually increasing period rather than catastrophic.

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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