期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2016/05/054
关键词
astrophysical black holes; dark matter theory; GR black holes; gravitational waves / sources
资金
- European Union's H ERC Consolidator Grant Matter and strong-field gravity: new frontiers in Einstein's theory grant [MaGRaTh-646597]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico [232804/2014-1]
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development Innovation
- H-MSCA-RISE Grant [StronGrHEP-690904]
- FCT-Portugal [IF/00293/2013]
In viable models of minicharged dark matter, astrophysical black holes might be charged under a hidden U(1) symmetry and are formally described by the same Kerr Newman solution of Einstein-Maxwell theory. These objects are unique probes of minicharged dark matter and dark photons. We show that the recent gravitational-wave detection of a binary black-hole coalescence by aLIGO provides various observational bounds on the black hole's charge, regardless of its nature. The pre-merger inspiral phase can be used to constrain the dipolar emission of (ordinary and dark) photons, whereas the detection of the quasinormal modes set an upper limit on the final black hole's charge. By using a toy model of a point charge plunging into a Reissner-Nordstrom black hole, we also show that in dynamical processes the (hidden) electromagnetic quasinormal modes of the final object are excited to considerable amplitude in the gravitational-wave spectrum only when the black hole is nearly extremal. The coalescence produces a burst of low-frequency dark photons which might provide a possible electromagnetic counterpart to black-hole mergers in these scenarios.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据