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Testing Ghasemi-Nodehi-Bambi metric parameters with quasi-periodic oscillations
Ghasemi-Nodehi, M.1,2; Lu, Youjun1,3; Chen, Ju1,3; Yang, Chao1,3
2020-06-05
Source PublicationEUROPEAN PHYSICAL JOURNAL C
ISSN1434-6044
Volume80Issue:6Pages:12
AbstractQPOs are seen as peak features in the X-ray power spectral density of stellar mass black holes and neutron stars, of which frequencies can be measured with high precision. These QPO frequencies are believed to be related to fundamental frequencies of test particles, which are mainly determined by the background metric. We consider the metric introduced in Ghasemi-Nodehi and Bambi (Eur Phys J C 76:290, 2016). The fundamental frequencies in this metric are sensitive to some of the metric parameters but insensitive to other parameters, which means, the differences in fundamental frequencies in this metric and those in the Kerr ones can be significant for small changes of some but not all parameters around the Kerr value. By comparing with the QPO observations of GRO J1655-40, we find that only one parameter of the Ghasemi-Nodehi-Bambi metric can be strongly constrained, but other parameters cannot. We also use nested algorithm to investigate whether better constraints on the Ghasemi-Nodehi-Bambi metric parameters can be obtained from QPO observations of multiple objects by simulations. We find that four parameters can be strongly constrained while other parameters cannot . Our results suggest that QPOs may be important tools for testing the Kerr metric.
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/s10052-020-7915-9
WOS KeywordX-RAY BINARIES ; KERR BLACK-HOLE ; GENERAL-RELATIVITY ; SPIN MEASUREMENTS ; IRON LINES ; MASS ; PRECESSION ; MODEL ; DISK ; DISKOSEISMOLOGY
Language英语
Funding ProjectNational Key Program for Science and Technology Research and Development[2016YFA0400704] ; National Natural Science Foundation of China[11690024] ; National Natural Science Foundation of China[11390372] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB 23040100] ; China Postdoctoral Science Foundation[2017LH021]
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:000540584800003
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/83251
Collection中国科学院国家天文台
Corresponding AuthorGhasemi-Nodehi, M.
Affiliation1.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Computat Astrophys, Beijing 100101, Peoples R China
2.Inst Res Fundamental Sci IPM, Sch Astron, POB 19395-5531, Tehran, Iran
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ghasemi-Nodehi, M.,Lu, Youjun,Chen, Ju,et al. Testing Ghasemi-Nodehi-Bambi metric parameters with quasi-periodic oscillations[J]. EUROPEAN PHYSICAL JOURNAL C,2020,80(6):12.
APA Ghasemi-Nodehi, M.,Lu, Youjun,Chen, Ju,&Yang, Chao.(2020).Testing Ghasemi-Nodehi-Bambi metric parameters with quasi-periodic oscillations.EUROPEAN PHYSICAL JOURNAL C,80(6),12.
MLA Ghasemi-Nodehi, M.,et al."Testing Ghasemi-Nodehi-Bambi metric parameters with quasi-periodic oscillations".EUROPEAN PHYSICAL JOURNAL C 80.6(2020):12.
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