• DOI:10.1088/2041-8205/760/2/L36
Corpus ID: 56207483

PSR J1311-3430: A Heavyweight Neutron Star with a Flyweight Helium Companion

@article{Romani2012PSRJA,
  title={PSR J1311-3430: A Heavyweight Neutron Star with a Flyweight Helium Companion},
  author={R. Romani and A. Filippenko and J. Silverman and S. Cenko and J. Greiner and A. Rau and J. Elliott and H. J. Pletsch},
  journal={The Astrophysical Journal},
  year={2012},
  volume={760},
  pages={1-6}
}

R. Romani, A. Filippenko, +5 authors H. J. Pletsch

Published 2012

Physics

The Astrophysical Journal

We have obtained initial spectroscopic observations and additional photometry of the newly discovered Pb = 94 minute γ-ray black-widow pulsar PSR J1311–3430. The Keck spectra show a He-dominated, nearly H-free photosphere and a large radial-velocity amplitude of 609.5 ± 7.5 km s–1. Simultaneous seven-color GROND photometry further probes the heating of this companion, and shows the presence of a flaring infrared excess. We have modeled the quiescent light curve, constraining the orbital… CONTINUE READING

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