CMB扭曲不利于中等质量的暗物质吗？
Does CMB Distortion Disfavour Intermediate Mass Dark Matter?
摘要：
我们调查公布的限制MACHO在质量区域$10^2 - 10^5 M_{\odot}$和他们可能的贡献暗物质。我们专注于约束依赖于吸积的物质发出的X射线，可以导致，降级后的微波，扭曲的CMB光谱和各向同性。在这一连串的论证中，最值得怀疑的一步是使用了过于简化的吸积模型。我们比较了相同的吸积模型如何适用于X射线观测超大质量黑洞SMBHs，M87和Sgr A*。这两个SMBH与中等质量MACHO的比较表明，后者毕竟可以提供所有暗物质的成分。我们讨论了IM-MACHO的其他限制的状态。
英文摘要：
We investigate the published constraints on MACHOs in the mass region $10^2 - 10^5 M_{\odot}$ and their possible contribution to dark matter. We focus on constraints which rely on the accretion of matter which emits X-rays that can lead, after downgrading to microwaves, to distortion of the CMB spectrum and isotropy. The most questionable step in this chain of arguments is the use of overly simplified accretion models. We compare how the same accretion models apply to X-ray observations from supermassive black holes SMBHs, M87 and Sgr A*. The comparison of these two SMBHs with intermediate mass MACHOs suggests that the latter could, after all, provide the constituents of all the dark matter. We discuss the status of other constraints on IM-MACHOs.
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