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Qualifying ringdown and shadow of black holes under general parametrized metrics with photon orbits
Li, Song1,2; Abdujabbarov, Ahmadjon A.1,3; Han, Wen-Biao1,2,4
2021-07-01
Source PublicationEUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
Volume81Issue:7Pages:16
AbstractThe motion of photons around black holes determines the shape of shadow and match the ringdown properties of a perturbed black hole. Observations of shadows and ringdown waveforms will reveal the nature of black holes. In this paper, we study the motion of photons in a general parametrized metric beyond the Kerr hypothesis. We investigated the radius and frequency of the photon circular orbits on the equatorial plane and obtained fitted formula with varied parameters. The Lyapunov exponent which connects to the decay rate of the ringdown amplitude is also calculated. We also analyzed the shape of shadow with full parameters of the generally axisymmetric metric. Our results imply the potential constraint on black hole parameters by combining the Event Horizon Telescope and gravitational wave observations in the future.
Funding OrganizationNSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences
DOI10.1140/epjc/s10052-021-09445-6
WOS KeywordQUASI-NORMAL MODES ; EHT OBSERVATIONS ; GRAVITY ; FIELD ; STABILITY ; TESTS ; HAIR
Language英语
Funding ProjectNSFC[11773059] ; PIFI fund of Chinese Academy of Sciences
Funding OrganizationNSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences ; NSFC ; NSFC ; PIFI fund of Chinese Academy of Sciences ; PIFI fund of Chinese Academy of Sciences
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000691566700003
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75376
Collection中国科学院国家天文台
Corresponding AuthorHan, Wen-Biao
Affiliation1.Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Ulugh Beg Astron Inst, Astron Skaya 33, Tashkent 100052, Uzbekistan
4.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
Recommended Citation
GB/T 7714
Li, Song,Abdujabbarov, Ahmadjon A.,Han, Wen-Biao. Qualifying ringdown and shadow of black holes under general parametrized metrics with photon orbits[J]. EUROPEAN PHYSICAL JOURNAL C,2021,81(7):16.
APA Li, Song,Abdujabbarov, Ahmadjon A.,&Han, Wen-Biao.(2021).Qualifying ringdown and shadow of black holes under general parametrized metrics with photon orbits.EUROPEAN PHYSICAL JOURNAL C,81(7),16.
MLA Li, Song,et al."Qualifying ringdown and shadow of black holes under general parametrized metrics with photon orbits".EUROPEAN PHYSICAL JOURNAL C 81.7(2021):16.
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