The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar

被引：64

作者：

Cameron, A. D. ^{[1
]}

Champion, D. J. ^{[1
]}

Kramer, M. ^{[1
,2
]}

Bailes, M. ^{[3
,4
,5
]}

Barr, E. D. ^{[1
]}

Bassa, C. G. ^{[6
]}

Bhandari, S. ^{[3
,4
]}

Bhat, N. D. R. ^{[4
,7
]}

Burgay, M. ^{[8
]}

Burke-Spolaor, S. ^{[9
,10
]}

Eatough, R. P. ^{[1
]}

Flynn, C. M. L. ^{[3
]}

Freire, P. C. C. ^{[1
]}

Jameson, A. ^{[3
,4
]}

Johnston, S. ^{[11
]}

Karuppusamy, R. ^{[1
]}

Keith, M. J. ^{[2
]}

Levin, L. ^{[2
]}

Lorimer, D. R. ^{[9
]}

Lyne, A. G. ^{[2
]}

McLaughlin, M. A. ^{[9
]}

Ng, C. ^{[12
]}

Petroff, E. ^{[6
]}

Possenti, A. ^{[8
]}

Ridolfi, A. ^{[1
]}

Stappers, B. W. ^{[2
]}

van Straten, W. ^{[3
,4
,13
]}

Tauris, T. M. ^{[1
,14
]}

Tiburzi, C. ^{[1
,15
]}

Wex, N. ^{[1
]}

机构：

[1] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany

[2] Univ Manchester, Jodrell Bank Ctr Astrophys, Alan Turing Bldg,Oxford Rd, Manchester M13 9PL, Lancs, England

[3] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Mail H39,POB 218, Hawthorn, Vic 3122, Australia

[4] Swinburne Univ Technol, ARC Ctr Excellence All Sky Astron CAASTRO, Mail H30,POB 218, Hawthorn, Vic 3122, Australia

[5] Swinburne Univ Technol, ARC Ctr Excellence Gravitat Wave Discovery OzGrav, Mail H11,POB 218, Hawthorn, Vic 3122, Australia

[6] ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands

[7] Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia

[8] Osservatorio Astron Cagliari, INAF, Via Sci 5, I-09047 Selargius, CA, Italy

[9] West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA

[10] West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA

[11] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia

[12] Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada

[13] Auckland Univ Technol, Inst Radio Astron & Space Res, Private Bag 92006, Auckland 1142, New Zealand

[14] Argelander Insitut Astron, Hugel 71, D-53121 Bonn, Germany

[15] Univ Bielefeld, Fak Phys, Postfach 100131, D-33501 Bielefeld, Germany

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 475卷 / 01期

基金：

欧洲研究理事会; 英国科学技术设施理事会; 美国国家科学基金会;

关键词：

gravitation; surveys; binaries: close; pulsars: individual: PSR J1757-1854; RELATIVISTIC CELESTIAL MECHANICS; GENERAL-RELATIVITY; DISCOVERY; GRAVITY; SYSTEMS; SEARCH; TESTS;

D O I：

10.1093/mnrasl/sly003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of PSR J1757-1854, a 21.5-ms pulsar in a highly-eccentric, 4.4-h orbit with a neutron star (NS) companion. PSR J1757-1854 exhibits some of the most extreme relativistic parameters of any known pulsar, including the strongest relativistic effects due to gravitational-wave damping, with a merger time of 76 Myr. Following a 1.6-yr timing campaign, we have measured five post-Keplerian parameters, yielding the two component masses (m(p) = 1.3384(9) M-circle dot and m(c) = 1.3946(9) M-circle dot) plus three tests of general relativity, which the theory passes. The larger mass of the NS companion provides important clues regarding the binary formation of PSR J1757-1854. With simulations suggesting 3-sigma measurements of both the contribution of Lense-Thirring precession to the rate of change of the semimajor axis and the relativistic deformation of the orbit within similar to 7-9 yr, PSR J1757-1854 stands out as a unique laboratory for new tests of gravitational theories.

引用

页码：L57 / L61

页数：5

共 17 条

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Cameron, A. D.
Bailes, M.
Balakrishnan, V.
Champion, D. J.
Freire, P. C. C.
Kramer, M.
Wex, N.
Johnston, S.
Lyne, A. G.
Stappers, B. W.
McLaughlin, M. A.
Pol, N.
Wahl, H.
Ng, C.
Possenti, A.
Ridolfi, A.
SIXTEENTH MARCEL GROSSMANN MEETING, 2023, : 3774 - 3784
[2] The discovery of two mildly recycled binary pulsars in the Northern High Time Resolution Universe pulsar survey
Berezina, M.
Champion, D. J.
Freire, P. C. C.
Tauris, T. M.
Kramer, M.
Lyne, A. G.
Stappers, B. W.
Guillemot, L.
Cognard, I.
Barr, E. D.
Eatough, R. P.
Karuppusamy, R.
Spitler, L. G.
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[3] The High Time Resolution Universe Pulsar Survey -VIII. The Galactic millisecond pulsar population
Levin, L.
Bailes, M.
Barsdell, B. R.
Bates, S. D.
Bhat, N. D. R.
Burgay, M.
Burke-Spolaor, S.
Champion, D. J.
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Jameson, A.
Johnston, S.
Keith, M. J.
Kramer, M.
Milia, S.
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van Straten, W.
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[4] The Northern High Time Resolution Universe pulsar survey - I. Setup and initial discoveries
Barr, E. D.
Champion, D. J.
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[5] The High Time Resolution Universe Pulsar Survey - I. System configuration and initial discoveries
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[8] The High Time Resolution Universe Pulsar survey - XVIII. The reprocessing of the HTRU-S Low Lat survey around the Galactic Centre using a Fast Folding Algorithm pipeline for accelerated pulsars
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