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Measurement of Orbital Decay in the Double Neutron Star Binary PSR B2127+11C

B. A. Jacoby·P. B. Cameron·F. A. Jenet·S. B. Anderson·R. N. Murty·S. R. Kulkarni
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Abstract

We report the direct measurement of orbital period decay in the double neutron star pulsar system PSR B2127+11C in the globular cluster M15 at the rate of $(-3.95 \pm 0.13) \times 10^{-12}$, consistent with the prediction of general relativity at the $\sim 3 %$ level. We find the pulsar mass to be $m_p = (1.358 \pm 0.010) M_\odot$ and the companion mass $m_c = (1.354 \pm 0.010) M_\odot$. We also report long-term pulse timing results for the pulsars PSR B2127+11A and PSR B2127+11B, including confirmation of the cluster proper motion.

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B. A. Jacoby, P. B. Cameron, F. A. Jenet, S. B. Anderson, R. N. Murty, S. R. Kulkarni. 2006-05-15. Measurement of Orbital Decay in the Double Neutron Star Binary PSR B2127+11C. https://doi.org/10.1086/505742

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