NAOC Open IR
Investigating the existence of gravitomagnetic monopole in M87
Ghasemi-Nodehi, M.1,2; Chakraborty, Chandrachur3,4; Yu, Qingjuan3; Lu, Youjun1,5
2021-10-01
Source PublicationEUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
Volume81Issue:10Pages:12
AbstractWe examine the possibility for the existence of gravitomagnetic monopole (n(*)) in M87* by using the results obtained from its first Event Horizon Telescope image. By numerically deducing the shadow sizes in Kerr-Taub-NUT (KTN) spacetime, we show that the shadow size increases with increasing vertical bar n(*)vertical bar for a fixed Kerr parameter vertical bar a*vertical bar in case of the KTN black hole, whereas for a KTN naked singularity it increases with increasing n(*) for a fixed a(*) > 0 if n(*) > - cot 17 degrees. In general, the asymmetry of shadow shape increases if the central dark object in M87 is a KTN/Kerr naked singularity instead of a KTN/Kerr black hole. We find that a non-zero gravitomagnetic monopole is still compatible with the current EHT observations, in which case the upper limit of n(*) cannot be greater than 1.1, i.e., n(*) less than or similar to 1.1 for the prograde rotation (a(*) > 0), and the lower limit of n(*) cannot be less than -1.1, i.e., n(*) greater than or similar to -1.1 for the retrograde rotation (a(*) <0). Moreover, if the circularity of the shadow can be measured on a precision of less than or similar to 1%, the Kerr and KTN naked singularities can be falsified for M87*.
Funding OrganizationNational Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
DOI10.1140/epjc/s10052-021-09696-3
WOS KeywordNO-HAIR THEOREM ; KERR ; SHADOW ; NEWMAN ; SPACE ; SPIN ; MASS
Language英语
Funding ProjectNational Key Program for Science and Technology Research and Development[2016YFA0400703] ; National Key Program for Science and Technology Research and Development[2016YFA0400704] ; National Natural Science Foundation of China[11873056] ; National Natural Science Foundation of China[11690024] ; National Natural Science Foundation of China[11673001] ; National Natural Science Foundation of China[11750110410] ; National Natural Science Foundation of China[11721303] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB 23040100] ; China Postdoctoral Science Foundation[2017LH021] ; China Postdoctoral Science Foundation[2018M630023]
Funding OrganizationNational Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
WOS IDWOS:000710216800003
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/74972
Collection中国科学院国家天文台
Corresponding AuthorGhasemi-Nodehi, M.
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
2.Inst Res Fundamental Sci, Sch Astron, Tehran 193955531, Iran
3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
4.Indian Inst Sci, Depatment Phys, Bengaluru 560012, India
5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ghasemi-Nodehi, M.,Chakraborty, Chandrachur,Yu, Qingjuan,et al. Investigating the existence of gravitomagnetic monopole in M87[J]. EUROPEAN PHYSICAL JOURNAL C,2021,81(10):12.
APA Ghasemi-Nodehi, M.,Chakraborty, Chandrachur,Yu, Qingjuan,&Lu, Youjun.(2021).Investigating the existence of gravitomagnetic monopole in M87.EUROPEAN PHYSICAL JOURNAL C,81(10),12.
MLA Ghasemi-Nodehi, M.,et al."Investigating the existence of gravitomagnetic monopole in M87".EUROPEAN PHYSICAL JOURNAL C 81.10(2021):12.
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