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

Cameron AD, Champion DJ, Kramer M, Bailes M, Barr ED, Bassa CG, Bhandari S, Bhat NDR, Burgay M, Burke-Spolaor S, Eatough RP, et al. (2018)
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475(1): L57-L61.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
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.
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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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475
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1
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L57-L61
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Cameron AD, Champion DJ, Kramer M, et al. The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2018;475(1):L57-L61.
Cameron, A. D., Champion, D. J., Kramer, M., Bailes, M., Barr, E. D., Bassa, C. G., Bhandari, S., et al. (2018). The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 475(1), L57-L61. doi:10.1093/mnrasl/sly003
Cameron, A. D., Champion, D. J., Kramer, M., Bailes, M., Barr, E. D., Bassa, C. G., Bhandari, S., Bhat, N. D. R., Burgay, M., Burke-Spolaor, S., et al. (2018). The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475, L57-L61.
Cameron, A.D., et al., 2018. The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 475(1), p L57-L61.
A.D. Cameron, et al., “The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar”, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 475, 2018, pp. L57-L61.
Cameron, A.D., Champion, D.J., Kramer, M., Bailes, M., Barr, E.D., Bassa, C.G., Bhandari, S., Bhat, N.D.R., Burgay, M., Burke-Spolaor, S., Eatough, R.P., Flynn, C.M.L., Freire, P.C.C., Jameson, A., Johnston, S., Karuppusamy, R., Keith, M.J., Levin, L., Lorimer, D.R., Lyne, A.G., McLaughlin, M.A., Ng, C., Petroff, E., Possenti, A., Ridolfi, A., Stappers, B.W., van Straten, W., Tauris, T.M., Tiburzi, C., Wex, N.: The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 475, L57-L61 (2018).
Cameron, A. D., Champion, D. J., Kramer, M., Bailes, M., Barr, E. D., Bassa, C. G., Bhandari, S., Bhat, N. D. R., Burgay, M., Burke-Spolaor, S., Eatough, R. P., Flynn, C. M. L., Freire, P. C. C., Jameson, A., Johnston, S., Karuppusamy, R., Keith, M. J., Levin, L., Lorimer, D. R., Lyne, A. G., McLaughlin, M. A., Ng, C., Petroff, E., Possenti, A., Ridolfi, A., Stappers, B. W., van Straten, W., Tauris, T. M., Tiburzi, Caterina, and Wex, N. “The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar”. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475.1 (2018): L57-L61.