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Paper: The PSR J0514-4002A Binary System in NGC 1851
Volume: 328, Binary Radio Pulsars
Page: 207
Authors: Freire, P.C.; Gupta, Y.; Ransom, S.M.; Ishwara-Chandra, C.H.
Abstract: Using the Giant Metrewave Radio Telescope (GMRT), we have discovered PSR J0514−4002A, a binary millisecond pulsar in the globular cluster NGC 1851. This pulsar has a rotational period of 4.99 ms and the most eccentric pulsar orbit yet found, with e = 0.89. The orbital period is 18.8 days, and the companion has a minimum mass of 0.9MSolar; its nature is presently unclear. After accreting matter from a low-mass stellar companion, this pulsar exchanged it for its more massive present companion. This system presents the strongest evidence to date of such a process.
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