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arXiv 2402.11019astro-ph.HEgr-qc
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长周期瞬变源能否由原初黑洞俘获提供能量?

Could long-period transients be powered by primordial black hole capture?

Thomas W. Baumgarte, Stuart L. Shapiro

AI总结:

本研究探讨了长周期射电瞬变源是否可能由原初黑洞反复穿过宿主恒星提供能量,发现仅凭周期和周期导数约束即可排除大多数宿主恒星,白矮星虽满足约束但难以俘获所需质量的黑洞。

摘要:

长周期射电瞬变源具有不寻常的特性,挑战了将其解释为脉冲星或磁星的观点。我们研究了它们是否可能由原初黑洞(PBHs)反复穿过宿主恒星来提供能量,从而提供难以捉摸的暗物质候选者的特征。我们证明,仅从瞬变源的周期和周期导数得出的约束已经排除了大多数潜在宿主恒星的这种情景。虽然白矮星可能满足这些约束,但它们不太可能俘获所需质量范围内的 PBHs。

英文摘要:

Long-period radio transients have unusual properties that challenge their interpretation as pulsars or magnetars. We examine whether they might instead be powered by primordial black holes (PBHs) making repeated passages through a host star, thereby providing a signature of elusive dark-matter candidates. We demonstrate that constraints derived from the transients' period and period derivative alone already rule out this scenario for most potential host stars. While white dwarfs may satisfy these constraints, they are unlikely to capture PBHs in the required mass range.

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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