NO OBSERVATIONAL CONSTRAINTS FROM HYPOTHETICAL COLLISIONS OF HYPOTHETICAL DARK HALO PRIMORDIAL BLACK HOLES WITH GALACTIC OBJECTS

NO OBSERVATIONAL CONSTRAINTS FROM HYPOTHETICAL COLLISIONS OF HYPOTHETICAL DARK HALO PRIMORDIAL BLACK HOLES WITH GALACTIC OBJECTS
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假设的暗晕原初黑洞与星系物体的假设碰撞没有观测限制

DOI:
10.1088/0004-637x/705/1/659
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发表时间:
--
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
L. Qian
L. Qian
中科院分区:
--
文献类型:
--
作者:
M. A. Abramowicz;J. K. Becker;P. L. Biermann;A. Garzilli;F. Johansson;L. Qian

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几位作者提出,假想的原始黑洞(PBH)可能对我们银河系中的暗物质(DM)有贡献。基于霍金蒸发有很强的约束,实际上排除了质量为m,∼,10,15-10,16克及以下的多溴化氢作为银河DM的重要贡献者。同样,质量大于约1026g的PBH实际上也被引力透镜观测排除在外。质量范围在1016g<m PBH<1026g之间是无约束的。在这篇文章中,我们检查了在未探索的质量范围内可能的观测信号,调查了多溴联苯与我们银河系中的主序星、红巨星、白矮星和中子星的假设碰撞。此前已经讨论过,这可能会导致可观测到的光子喷发,因为在相遇期间会产生冲击波。我们发现,这样的碰撞要么太罕见而无法观察到(如果PBH质量通常大于约1020g),要么产生太小的能量而无法检测(如果质量小于约1020g)。
It was suggested by several authors that hypothetical primordial black holes (PBHs) may contribute to the dark matter (DM) in our Galaxy. There are strong constraints based on the Hawking evaporation that practically exclude PBHs with masses m pbh∼ 10 15 to10 16 g and smaller as significant contributors to the Galactic DM. Similarly, PBHs with masses greater than about 10 26 g are practically excluded by the gravitational lensing observation. The mass range between 10 16 g< m pbh< 10 26 g is unconstrained. In this paper, we examine possible observational signatures in the unexplored mass range, investigating hypothetical collisions of PBHs with main-sequence stars, red giants, white dwarfs, and neutron stars in our Galaxy. This has previously been discussed as possibly leading to an observable photon eruption due to shock production during the encounter. We find that such collisions are either too rare to be observed (if the PBH masses are typically larger than about 10 20 g), or produce too little power to be detected (if the masses are smaller than about 10 20 g).
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
B. Zhilyaev
通讯作者: B. Zhilyaev
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DOI: --
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影响因子: 64.8
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DOI: 10.1016/j.physrep.2007.10.006
发表时间: 2007-10
期刊: Physics Reports
影响因子: --
作者:
J. Becker
通讯作者: J. Becker