Einstein@Home discovery of a Double-Neutron Star Binary in the PALFA Survey

  title={Einstein@Home discovery of a Double-Neutron Star Binary in the PALFA Survey},
  author={Patrick Lazarus and Paulo C. C. Freire and Bruce Allen and Slavko Bogdanov and Adam Brazier and Fernando Camilo and F. Cardoso and Sourav Chatterjee and James M. Cordes and Fronefield Crawford and Julia S. Deneva and Robert D. Ferdman and Jason W. T. Hessels and Fredrick A. Jenet and Chen Karako-Argaman and Victoria M. Kaspi and Benjamin Knispel and Ryan S. Lynch and Joeri van Leeuwen and E. C. Madsen and Maura Mclaughlin and C. Patel and Scott M. Ransom and Paul Scholz and Andrew D. Seymour and Xavier Siemens and L. G. Spitler and Ingrid H. Stairs and Kevin Stovall and Joseph K. Swiggum and Arun Venkataraman and W. W. Zhu},
  journal={The Astrophysical Journal},
We report here the Einstein@Home discovery of PSR J1913+1102, a 27.3 ms pulsar found in data from the ongoing Arecibo PALFA pulsar survey. The pulsar is in a 4.95 hr double neutron star (DNS) system with an eccentricity of 0.089. From radio timing with the Arecibo 305 m telescope, we measure the rate of advance of periastron to be $\dot{\omega }=5.632(18)$° yr−1. Assuming general relativity accurately models the orbital motion, this corresponds to a total system mass of M tot = 2.875(14) ${M}_… 

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