论文标题
来自古怪超级质量黑洞二进制OJ的暗物质约束287
Dark Matter Constraints from the Eccentric Supermassive Black Hole Binary OJ 287
论文作者
论文摘要
OJ 287是一种被认为是一个二进制系统，其中包含约180亿个太阳质量的黑洞，伴随着一个怪异轨道中约有1.5亿个太阳能质量次要黑洞，当它在遍布主要磁盘时，每段〜12年的轨道时期都会触发电磁弹力。这些排放的时间与计算到纽顿后第4.5阶段的一般相对论的预测一致。次级黑洞的轨道样本在O（10）和O（50）Schwarzschild Radii之间的距离处进行了重力场，因此对周围可能存在暗物质尖峰而敏感。我们发现，一般性相关计算与来自OJ 287的耀斑的时机的一致性将这种尖峰的质量限制为<3％的主要质量。
OJ 287 is a blazar thought to be a binary system containing a ~ 18 billion solar mass primary black hole accompanied by a ~ 150 million solar mass secondary black hole in an eccentric orbit, which triggers electromagnetic flares twice in every ~ 12 year orbital period when it traverses the accretion disk of the primary. The times of these emissions are consistent with the predictions of general relativity calculated to the 4.5th post-Newtonian order. The orbit of the secondary black hole samples the gravitational field at distances between O(10) and O(50) Schwarzschild radii around the primary, and hence is sensitive to the possible presence of a dark matter spike around it. We find that the agreement of general-relativistic calculations with the measured timings of flares from OJ 287 constrains the mass of such a spike to < 3% of the primary mass.
