Discovery of Three Wide-orbit Binary Pulsars: Implications for Binary Evolution and Equivalence Principles

Abstract

We report the discovery of three binary millisecond pulsars during the Parkes Multibeam Pulsar Survey of the Galactic Plane. The objects are highly recycled and are in orbits of many tens of days about low-mass white-dwarf companions. The eccentricity of one object, PSR J1853+1303, is more than an order of magnitude lower than predicted by the theory of convective fluctuations during tidal circularization. We demonstrate that, under the assumption that the systems are randomly oriented, current theoretical models of the core-mass--orbital-period relation for the progenitors of these systems likely overestimate the white-dwarf masses, strengthening previous concerns about the match of these models to the data. The new objects allow us to update the limits on violation of relativistic equivalence principles to 95% confidence upper limits of 5.6 x 10^-3 for the Strong Equivalence Principle parameter Delta and 4.0 x 10^-20 for the Lorentz-invariance/momentum-conservation parameter alpha_3.

8 pages; accepted to ApJ. Small changes to parameters from including correct Parkes clock corrections; changes/corrections to Figures 1, 4 and 5; minor changes to text and references. The limit on Delta has increased from 0.0055 to 0.0056

References in corpus (6)

• The Parkes multibeam pulsar survey: IV. Discovery of 180 pulsars and parameters for 281 previously known pulsars
• The Parkes Multibeam Pulsar Survey: V. Finding binary and millisecond pulsars
• PSR J1756-2251: a new relativistic double neutron star system
• Masses, Parallax, and Relativistic Timing of the PSR J1713+0747 Binary System
• Shapiro delay in the PSR J1640+2224 binary system
• Discovery of 10 pulsars in an Arecibo drift-scan survey

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