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Estimating the masses of three neutron stars by twin kilohertz quasi-periodic oscillations and innermost stable circular orbits: constraining equations of state
Shi, Chang-Sheng1; Zhang, Shuang-Nan2,3,4
2020-05-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume494Issue:3Pages:4382-4392
AbstractWe test the magnetohydrodynamics (MHD) model derived by Shi, Zhang and Li by the like-standard deviations of the twin kilohertz (kHz) quasi-periodic oscillation (QPO) frequencies when the modes of the MHD waves in the MHD model are recalculated. A group of approximate equations derived from the MILD equations in the MILD model are proposed. Consequently, the dependence of the twin kHz QPO frequencies on several neutron star (NS) parameters is determined by the approximate equations. Based on the selection criterion that NS parameters corresponding to the minimum like-standard deviation are the most reasonable parameters, the masses of the three NSs in 4U 0614+09, 4U 1636-53 and 4U 1608-52 are estimated as M < 2.60 M-circle dot, 2.00 M-circle dot < M < 2.31 M-circle dot and 2.17 M-circle dot < M < 2.62 M-circle dot, respectively. According to these NS masses, some equations of state for the nuclear matter in compact stars can be ruled out.
Keywordaccretion, accretion discs MHD X-rays: binaries stars: neutron stars: magnetic field equation of state
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS
DOI10.1093/mnras/staa802
WOS KeywordATOLL SOURCE STATES ; X-RAY BINARIES ; BLACK-HOLES ; 4U 1636-53 ; OF-STATE ; FREQUENCY ; MODEL ; ACCRETION ; PULSARS ; RADII
Language英语
Funding ProjectNational Program on Key Research and Development Project[2016YFA0400802] ; National Natural Science Foundation of China[11563003] ; National Natural Science Foundation of China[U1838202] ; program of China Scholarships Council[201907565014] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-SLH008]
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; program of China Scholarships Council ; program of China Scholarships Council ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000535882100099
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/54746
Collection中国科学院国家天文台
Corresponding AuthorShi, Chang-Sheng
Affiliation1.Hainan Univ, Sch Sci, Haikou 570228, Hainan, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Shi, Chang-Sheng,Zhang, Shuang-Nan. Estimating the masses of three neutron stars by twin kilohertz quasi-periodic oscillations and innermost stable circular orbits: constraining equations of state[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,494(3):4382-4392.
APA Shi, Chang-Sheng,&Zhang, Shuang-Nan.(2020).Estimating the masses of three neutron stars by twin kilohertz quasi-periodic oscillations and innermost stable circular orbits: constraining equations of state.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,494(3),4382-4392.
MLA Shi, Chang-Sheng,et al."Estimating the masses of three neutron stars by twin kilohertz quasi-periodic oscillations and innermost stable circular orbits: constraining equations of state".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 494.3(2020):4382-4392.
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