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arXiv 2102.08857astro-ph.HEastro-ph.COgr-qchep-ph
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约束来自GW190517和GW 190426_152155的亮暗光子

Constraining Light Dark Photons from GW190517 and GW190426_152155

Diptimoy Ghosh, Divya Sachdeva

摘要:

在几个标准模型扩展中预测的超轻暗光子,如果它们的康普顿波长与黑洞半径相当,则可以触发旋转黑洞周围的超辐射不稳定性。因此,黑洞的角动量减少到一个值,该值取决于黑洞的质量和自旋以及暗光子的质量。我们利用最近观测到的两个二元黑洞系统:GW 190517和GW 190426_152155中的主黑洞的质量和自旋测量值,将暗光子质量分别限制在$1.7\times 10^{-14}{\rm\ eV}<m_{A'}<7.6\times 10^{-13}{\rm\ eV}$和$1.3\times 10^{-13}{\rm\ eV}<m_{A'}<4.2\times 10^{-12}{\rm\ eV}$的范围内,假设从二元黑洞系统形成到它们合并的时间为几百万年。我们还讨论了一个有趣的X射线双星系统,MAXI J1820_070,尽管自旋参数的值相对较小。

英文摘要:

Ultralight dark photons predicted in several Standard Model extensions can trigger the superradiant instability around rotating black holes if their Compton wavelength is comparable to the Blackhole radius. Consequently, the angular momentum of the black hole is reduced to a value which depends upon the mass and spin of the black hole as well as the mass of the dark photon. We use the mass and spin measurements of the primary black holes in two recently observed binary black hole systems: GW190517 and GW190426_152155 to constrain dark photon mass in the ranges $1.7\times 10^{-14}{\rm\ eV}<m_{A'}<7.6\times 10^{-13}{\rm\ eV}$ and $1.3\times 10^{-13}{\rm\ eV}<m_{A'}<4.2\times 10^{-12}{\rm\ eV}$ respectively, assuming a timescale of a few million years from the time of formation of the binary black hole system to the time of their merger. We also discuss an interesting X-ray binary system, MAXI J1820_070, albeit with a relatively small value of the spin parameter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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