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Probing Axions with Event Horizon Telescope Polarimetric Measurements
Chen, Yifan1,2,3; Shu, Jing1,4,5,6,7; Xue, Xiao1,4; Yuan, Qiang7,8,9; Zhao, Yue10
2020-02-14
Source PublicationPHYSICAL REVIEW LETTERS
ISSN0031-9007
Volume124Issue:6Pages:7
Corresponding AuthorShu, Jing(jshu@itp.ac.cn) ; Yuan, Qiang(yuanq@pmo.ac.cn) ; Zhao, Yue(zhaoyue@physics.utah.edu)
AbstractWith high spatial resolution, polarimetric imaging of a supermassive black hole, like M87(star) or Sgr A(star), by the Event Horizon Telescope can be used to probe the existence of ultralight bosonic particles, such as axions. Such particles can accumulate around a rotating black hole through the superradiance mechanism, forming an axion cloud. When linearly polarized photons are emitted from an accretion disk near the horizon, their position angles oscillate due to the birefringent effect when traveling through the axion background. In particular, the observations of supermassive black holes M87(star) (Sgr A(star)) can probe the dimensionless axion-photon coupling c = 2 pi g(a gamma)f(a) for axions with mass around O(10(-20)) eV [O(10(-17)) eV] and decay constant f(a) < O(10(16)) GeV, which is complimentary to other axion measurements.
DOI10.1103/PhysRevLett.124.061102
WOS KeywordROTATING BLACK-HOLE ; CP CONSERVATION ; PERTURBATIONS ; POLARIZATION
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000513568400005
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/36213
Collection中国科学院紫金山天文台
Corresponding AuthorShu, Jing; Yuan, Qiang; Zhao, Yue
Affiliation1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Sorbonne Univ, LPTHE, UMR 7589, 4 Pl Jussieu, F-75252 Paris 05, France
3.CNRS, 4 Pl Jussieu, F-75252 Paris 05, France
4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
5.Ctr Excellence Particle Phys, Beijing 100049, Peoples R China
6.Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
7.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
8.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
9.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
10.Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA
Recommended Citation
GB/T 7714
Chen, Yifan,Shu, Jing,Xue, Xiao,et al. Probing Axions with Event Horizon Telescope Polarimetric Measurements[J]. PHYSICAL REVIEW LETTERS,2020,124(6):7.
APA Chen, Yifan,Shu, Jing,Xue, Xiao,Yuan, Qiang,&Zhao, Yue.(2020).Probing Axions with Event Horizon Telescope Polarimetric Measurements.PHYSICAL REVIEW LETTERS,124(6),7.
MLA Chen, Yifan,et al."Probing Axions with Event Horizon Telescope Polarimetric Measurements".PHYSICAL REVIEW LETTERS 124.6(2020):7.
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