标题： 超辐射玻色子驱动超大质量黑洞合并 显示英文标题

标题： Superradiant Bosons Driving Supermassive Black Hole Mergers

摘要： 超轻玻色子（ULBs）可以在旋转黑洞周围形成宏大的超辐射云。 我们表明，对于标量ULB质量为$\mu \sim 10^{-22}-10^{-21}$eV的玻色子云，动力学摩擦驱动超大质量黑洞（SMBH）最终-百帕秒演化在$\lesssim 1$Gyr内，并抑制了纳赫兹引力波背景的转折点。考虑到被监测一个世纪的OJ287系统，我们放置了新的限制来约束ULB质量范围$\mu \simeq (8.5-22) \times 10^{-22}$eV，而不依赖于任何暗物质假设，并表明ULB拖拽也可以有效地协调任何未来对争议轨道衰减过剩的确证。即将发布的脉冲星计时阵列数据和精确的SMBH轨道计时将决定性地测试这一情景。 显示英文摘要

摘要： Ultralight bosons (ULBs) can form macroscopic superradiant clouds around spinning black holes. We show that for scalar ULB masses $\mu \sim 10^{-22}-10^{-21}$ eV boson cloud dynamical friction drives supermassive black hole (SMBH) final-parsec evolution in $\lesssim 1$ Gyr and suppresses the nanohertz gravitational wave background with turnover. Considering century-monitored OJ287 system, we place novel bounds restricting ULB mass range $\mu \simeq (8.5-22) \times 10^{-22}$ eV independent of any dark matter assumptions and show ULB drag can also efficiently reconcile any future confirmations of the debated orbital decay excess. Forthcoming pulsar timing array data and precise SMBH orbital timings will decisively test this scenario.