Heavy Neutron Stars? A Status Report on Arecibo Timing of Four Pulsar-White Dwarf Systems

  title={Heavy Neutron Stars? A Status Report on Arecibo Timing of Four Pulsar-White Dwarf Systems},
  author={David J. Nice and Eric M. Splaver and Ingrid H. Stairs},
  journal={arXiv: Astrophysics},
Relativistic phenomena (orbital precession, Shapiro delay, and/or orbital decay) have been measured in Arecibo timing observations of four pulsar-white dwarf binaries, leading to constraints on the neutron star masses. We have detected the decay of the PSR J0751+1807 orbit due to gravitational radiation emission, the first such measurement in a binary with a low mass ratio (m_2/m_1<<1). Timing data constrains the mass of this pulsar to bet between 1.6 and 2.8 solar masses. Masses of the other… Expand

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