Dark fluxes from accreting black holes through several mechanisms

被引：4

作者：

Cai, Rong-Gen ^{[1
,2
,3
,9
]}

Sun, Sichun ^{[4
,5
]}

Zhang, Bing ^{[6
,7
]}

Zhang, Yun-Long ^{[1
,8
,9
,10
]}

机构：

[1] Univ Chinese Acad Sci, Sch Fundamental Phys & Math Sci, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China

[2] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[4] Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China

[5] Sapienza Univ Rome, Dept Phys, Ist Nazl Fis Nucl, I-00185 Rome, Italy

[6] Univ Nevada, Nevada Ctr Astrophys, Las Vegas, NV 89154 USA

[7] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[8] Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China

[9] Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China

[10] Kyoto Univ, Ctr Gravitat Phys, Yukawa Inst Theoret Phys, Sakyo Ku, Kyoto 6068502, Japan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2022年 / 82卷 / 03期

基金：

中国国家自然科学基金;

关键词：

MATTER; ENERGY; EXTRACTION; LINE; SPECTROSCOPY; SPECTRUM; ORIGIN; DISKS;

D O I：

10.1140/epjc/s10052-022-10173-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss the possibility that accreting black hole systems can be sources for dark matter flux through several different mechanisms. We firstly discuss two types of systems': coronal thermal plasmas around supermassive black holes in active galactic nuclei (AGNs), and accretion disks of stellar-mass X-ray black hole binaries (BHBs). We explore how these black hole systems may produce keV light dark matter fluxes and find that the dark fluxes from those sources might be too weak to account for the current XENON1T excess. On the other hand, black holes can be good accelerators to accrete and boost heavy dark matter particles. If considering collisions or dark electromagnetism, those particles can then escape and reach the benchmark speed of 0.1c at the detector. We also extend the black hole mass region to primordial black holes (PBHs) and discuss the possibility of contributing to keV light dark flux via superradiance of PBHs.

引用

页数：14

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