Transformation of a Star into a Planet in a Millisecond Pulsar Binary

  title={Transformation of a Star into a Planet in a Millisecond Pulsar Binary},
  author={Matthew Bailes and Samuel Bates and Varun Bhalerao and N. D. Ramesh Bhat and Marta Burgay and Sarah Burke-Spolaor and Nicolo' D'Amico and Simon Johnston and Michael J. Keith and Michael Kramer and Shrinivas R. Kulkarni and Lina Levin and Andrew G. Lyne and Sabrina Milia and Andrea Possenti and L. G. Spitler and Ben W. Stappers and Willem van Straten},
  pages={1717 - 1720}
Timing observations of a millisecond pulsar reveal a planet that is far denser than any known planet. Millisecond pulsars are thought to be neutron stars that have been spun-up by accretion of matter from a binary companion. Although most are in binary systems, some 30% are solitary, and their origin is therefore mysterious. PSR J1719−1438, a 5.7-millisecond pulsar, was detected in a recent survey with the Parkes 64-meter radio telescope. We show that this pulsar is in a binary system with an… 
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