Cosmic strings and primordial black holes
Cosmic strings and primordial black holes
复制标题
宇宙弦和原初黑洞
DOI:
10.1088/1475-7516/2018/11/008
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发表时间:
2018
影响因子:
6.4
通讯作者:
Gruzinov, Andrei
中科院分区:
文献类型:
--
作者:
Vilenkin, Alexander;Levin, Yuri;Gruzinov, Andrei
Cosmic strings and primordial black holes (PBHs) commonly and naturally form in many scenarios describing the early universe. Here we show that if both cosmic strings and PBHs are present, their interaction leads to a range of interesting consequences. At the time of their formation, the PBHs get attached to the strings and influence their evolution, leading to the formation of black-hole-string networks and commonly to the suppression of loop production in a range of redshifts. Subsequently, reconnections within the network give rise to small nets made of several black holes and connecting strings. The number of black holes in the network as well as the stability of the nets depend on the topological properties of the strings. The nets oscillate and shrink exponentially due to the emission of gravitational waves. This leads to potentially observable string-driven mergers of PBHs. The strings can keep PBHs from galactic halos, making the current bounds on PBHs not generally applicable. Alternatively, heavy PBHs can drag low-tension strings into the centers of galaxies. The superconducting strings can appear as radio filaments pointing towards supermassive black holes.
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DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1103/physrevd.47.3265
发表时间:
1992
期刊:
Physical review. D, Particles and fields
影响因子:
--
作者:
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通讯作者:
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发表时间:
2015
期刊:
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--
作者:
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通讯作者:
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DOI:
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1987
期刊:
Physical Review D, Particles and fields
影响因子:
--
作者:
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通讯作者:
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影响因子:
5
作者:
J. Blanco;K. Olum;Benjamin Shlaer
通讯作者:
Benjamin Shlaer