Birefringence tomography for axion cloud

doi:10.1088/1475-7516/2022/09/073

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Birefringence tomography for axion cloud
	Chen, Yifan 2; Li, Chunlong ; Mizuno, Yosuke 3,4; Shu, Jing 5,6; Xue, Xiao 7,8; Yuan, Qiang 1,9; Zhao, Yue 10; Zhou, Zihan 11
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2022
期号	9 页码:73
关键词	BLACK-HOLE ACCRETION FLOWS MAGNETOHYDRODYNAMIC SIMULATIONS CP CONSERVATION PHOTON RING POLARIZATION EQUATION SPIN M87
ISSN号	1475-7516
DOI	10.1088/1475-7516/2022/09/073
英文摘要	An axion cloud surrounding a supermassive black hole can be naturally produced through the superradiance process. Its existence can be examined by the axion induced birefringence effect. It predicts an oscillation of the electric vector position angle of linearly polarized radiations. Stringent constraints of the existence of the axion in a particular mass window has been obtained based on the recent Event Horizon Telescope measurement on M87*. The future Very-Long-Baseline Interferometry (VLBI) observations will be able to measure the vicinity of many supermassive black holes, thus it opens the possibility to search for the existence of axions in a wide mass regime. In this paper, we study how different black hole properties and accretion flows influence the signatures of the axion induced birefringence. We include the impacts of black hole inclination angles, spins, magnetic fields, plasma velocity distributions, the thickness of the accretion flows. We pay special attention to characterize the washout effects induced by the finite thickness of the accretion flows and the lensed photons. Based on this study, we give prospects on how to optimize the axion search using future VLBI observations, such as the next-generation Event Horizon Telescope, to further increase the sensitivity.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27690]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Niels Bohr Int Acad, Niels Bohr Inst, Blegdamsvej 17, DK-2100 Copenhagen, Denmark 4.Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Sch Phys & Astron, Shanghai 200240, Peoples R China 5.Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany 6.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 7.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 8.Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany 9.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210023, Peoples R China 10.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yifan,Li, Chunlong,Mizuno, Yosuke,et al. Birefringence tomography for axion cloud[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2022(9):73.
APA	Chen, Yifan.,Li, Chunlong.,Mizuno, Yosuke.,Shu, Jing.,Xue, Xiao.,...&Zhou, Zihan.(2022).Birefringence tomography for axion cloud.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(9),73.
MLA	Chen, Yifan,et al."Birefringence tomography for axion cloud".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .9(2022):73.