标题： 长周期瞬变体是否可能由原初黑洞捕获提供能量？ 显示英文标题

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

摘要： 长周期射电瞬变体具有不寻常的特性，这对其作为脉冲星或磁星的解释构成了挑战。 我们检查它们是否可能是由原初黑洞（PBHs）驱动的，这些黑洞多次穿过宿主恒星，从而提供了一种难以捉摸的暗物质候选者的特征。 我们证明，仅从瞬变体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，但它们不太可能捕获所需质量范围内的PBHs。 显示英文摘要

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.