NAOC Open IR
PSR J2222-0137 I. Improved physical parameters for the system
Guo, Y. J.1; Freire, P. C. C.1; Guillemot, L.2,3; Kramer, M.1; Zhu, W. W.4; Wex, N.1; McKee, J. W.1,5; Deller, A.6,7; Ding, H.6,7; Kaplan, D. L.8; Stappers, B.9; Cognard, I2,3; Miao, X.10,11; Haase, L.1; Keith, M.9; Ransom, S. M.12; Theureau, G.2,3,13
2021-10-01
Source PublicationASTRONOMY & ASTROPHYSICS
ISSN0004-6361
Volume654Pages:17
AbstractContext. The PSR J2222-0137 binary system has a set of features that make it a unique laboratory for tests of gravity theories. Aims. To fully exploit the system's potential for these tests, we aim to improve the measurements of its physical parameters, spin and orbital orientation, and post-Keplerian parameters, which quantify the observed relativistic effects. Methods. We describe an improved analysis of archival very long baseline interferometry (VLBI) data, which uses a coordinate convention in full agreement with that used in timing We have also obtained much improved polarimetry of the pulsar with the Five hundred meter Aperture Spherical Telescope (FAST). We provide an improved analysis of significantly extended timing datasets taken with the Effelsberg, Nancay, and Lovell radio telescopes; this also includes previous timing data from the Green Bank Telescope. Results. From the VLBI analysis, we have obtained a new estimate of the position angle of the ascending node, Omega = 189(-18)(+19) deg (all uncertainties are 68% confidence limits), and a new reference position for the pulsar with an improved and more conservative uncertainty estimate. The FAST polarimetric results, and in particular the detection of an interpulse, yield much improved estimates for the spin geometry of the pulsar, in particular an inclination of the spin axis of the pulsar of similar to 84 deg. From the timing, we obtain a new similar to 1% test of general relativity (GR) from the agreement of the Shapiro delay parameters and the rate of advance of periastron. Assuming GR in a self-consistent analysis of all effects, we obtain much improved masses: 1.831(10) M-circle dot for the pulsar and 1.319(4) M-circle dot for the white dwarf companion; the total mass, 3.150(14) M-circle dot, confirms this as the most massive double degenerate binary known in the Galaxy. This analysis also yields the orbital orientation; in particular, the orbital inclination is 85.27(4) deg - indicating a close alignment between the spin of the pulsar and the orbital angular momentum - and Omega = 187.7(5.7) deg, which matches our new VLBI estimate. Finally, the timing also yields a precise measurement of the variation in the orbital period, (P)over dot(b) = 0.251(8)x 10(-12) s s(-1); this is consistent with the expected variation in the Doppler factor plus the orbital decay caused by the emission of gravitational waves predicted by GR. This agreement introduces stringent constraints on the emission of dipolar gravitational waves.
Keywordbinaries: close gravitational waves pulsars: general pulsars: individual: J2222-0137 stars: neutron white dwarfs
Funding Organization"Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.1051/0004-6361/202141450
WOS KeywordWHITE-DWARF ; GENERAL-RELATIVITY ; SCALAR THEORIES ; BINARY-SYSTEMS ; NEUTRON-STAR ; PULSAR ; FIELD ; ASTROMETRY ; PLANETARY ; PSRCHIVE
Language英语
Funding Project"Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center[1430284] ; Natural Sciences and Engineering Research Council of Canada (NSERC)[CITA 490888-16] ; CAS-MPG LEGACY project ; National Key R&D Program of China[2017YFA0402600] ; National SKA Program of China[2020SKA0120200] ; National Natural Science Foundation of China[11873067] ; National Natural Science Foundation of China[12041303]
Funding Organization"Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; "Programme National de Cosmologie et Galaxies" (PNCG) of CNRS/INSU, France ; NSF Physics Frontiers Center ; NSF Physics Frontiers Center ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; Natural Sciences and Engineering Research Council of Canada (NSERC) ; CAS-MPG LEGACY project ; CAS-MPG LEGACY project ; National Key R&D Program of China ; National Key R&D Program of China ; National SKA Program of China ; National SKA Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000702520600016
PublisherEDP SCIENCES S A
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75204
Collection中国科学院国家天文台
Corresponding AuthorGuo, Y. J.
Affiliation1.Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
2.Univ Orleans, Lab Phys & Chim Environm & Espace, CNRS, F-45071 Orleans 02, France
3.CNRS INSU, Observ Paris, Stn Radioastron Nancay, F-18330 Nancay, France
4.Chinese Acad Sci, CAS Key Lab FAST, NAOC, Beijing 100101, Peoples R China
5.Univ Toronto, Canadian Inst Theoret Astrophys, 60 St George St, Toronto, ON M5S 3H8, Canada
6.Swinburne Univ Technol, Ctr Astrophys & Supercomp, John St, Hawthorn, Vic 3122, Australia
7.ARC Ctr Excellence Gravitat Wave Discovery OzGrav, Hawthorn, Vic, Australia
8.Univ Wisconsin, Dept Phys, Ctr Gravitat Cosmol & Astrophys, POB 413, Milwaukee, WI 53201 USA
9.Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
10.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
11.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
12.Natl Radio Astron Observ, 520 Edgemt Rd, Charlottesville, VA 22903 USA
13.Univ Paris Diderot, Sorbonne Paris Cite, PSL Res Univ, LUTH,Observ Paris,CNRS, F-92195 Meudon, France
Recommended Citation
GB/T 7714
Guo, Y. J.,Freire, P. C. C.,Guillemot, L.,et al. PSR J2222-0137 I. Improved physical parameters for the system[J]. ASTRONOMY & ASTROPHYSICS,2021,654:17.
APA Guo, Y. J..,Freire, P. C. C..,Guillemot, L..,Kramer, M..,Zhu, W. W..,...&Theureau, G..(2021).PSR J2222-0137 I. Improved physical parameters for the system.ASTRONOMY & ASTROPHYSICS,654,17.
MLA Guo, Y. J.,et al."PSR J2222-0137 I. Improved physical parameters for the system".ASTRONOMY & ASTROPHYSICS 654(2021):17.
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