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PSR J0030+0451, GW170817, and the Nuclear Data: Joint Constraints on Equation of State and Bulk Properties of Neutron Stars
Jiang, Jin-Liang1,2; Tang, Shao-Peng1,2; Wang, Yuan-Zhu1; Fan, Yi-Zhong1,2; Wei, Da-Ming1,2
2020-03-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume892Issue:1Pages:7
Corresponding AuthorFan, Yi-Zhong(yzfan@pmo.ac.cn)
AbstractVery recently the NICER collaboration published the first-ever accurate measurement of mass and radius together for PSR J0030+0451, a nearby isolated quickly rotating neutron star (NS). In this work we set the joint constraints on the equation of state (EoS) and some bulk properties of NSs with the data of PSR J0030+0451, GW170817, and some nuclear experiments. The piecewise polytropic expansion method and the spectral decomposition method have been adopted to parameterize the EoS. The resulting constraints are consistent with each other. Assuming the maximal gravitational mass of nonrotating NS Mrov lies between 2.04M. and 2.44D, with the piecewise method the pressure at twice nuclear saturation density is measured to be 3.191g x 1034 dyn cm2 at the 90% level. For an NS with canonical mass of 1.44D, we have the moment of inertia h.4 = 1.43 ST x 1038 kg " m2, tidal deformability A1.4 = 370 M, radius R1.4 = 12.1 10i km, and binding energy BE1.4 = 0.161(0)1M0 at the 90% level, which are improved in comparison to the constraints with the sole data of GW170817. These conclusions are drawn for the mass/radius measurements of PSR J0030+0451 by Riley et al. For the measurements of Miller et al., the results are rather similar.
KeywordGravitational waves Neutron stars Neutron star cores
DOI10.3847/1538-4357/ab77cf
WOS KeywordMAXIMUM MASS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000522409900001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/35911
Collection中国科学院紫金山天文台
Corresponding AuthorFan, Yi-Zhong
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210023, Peoples R China
2.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Jin-Liang,Tang, Shao-Peng,Wang, Yuan-Zhu,et al. PSR J0030+0451, GW170817, and the Nuclear Data: Joint Constraints on Equation of State and Bulk Properties of Neutron Stars[J]. ASTROPHYSICAL JOURNAL,2020,892(1):7.
APA Jiang, Jin-Liang,Tang, Shao-Peng,Wang, Yuan-Zhu,Fan, Yi-Zhong,&Wei, Da-Ming.(2020).PSR J0030+0451, GW170817, and the Nuclear Data: Joint Constraints on Equation of State and Bulk Properties of Neutron Stars.ASTROPHYSICAL JOURNAL,892(1),7.
MLA Jiang, Jin-Liang,et al."PSR J0030+0451, GW170817, and the Nuclear Data: Joint Constraints on Equation of State and Bulk Properties of Neutron Stars".ASTROPHYSICAL JOURNAL 892.1(2020):7.
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