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    • Millisecond Pulsars, their Evolution and Applications

      R. N. Manchester

      Review Article Volume 38 Issue 3 September 2017 Article ID 0042

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/038/03/0042

    • Keywords

       

      Pulsars; general; stars: evolution; gravitation.

    • Abstract

       

      Millisecond pulsars (MSPs) are short-period pulsars that are distinguished from “normal” pulsars, not only by their short period, but also by their very small spin-down rates and high probability of being in a binary system. These properties are consistent with MSPs having a different evolutionary history to normal pulsars, viz., neutron-star formation in an evolving binary system and spin-up due to accretion from the binary companion. Their very stable periods make MSPs nearly ideal probes of a wide variety of astrophysical phenomena. For example, they have been used to detect planets around pulsars, to test the accuracy of gravitational theories, to set limits on the low-frequency gravitational-wave background in the Universe, and to establish pulsar-based timescales that rival the best atomic-clock timescales in long-term stability. MSPs also provide a window into stellar and binary evolution, often suggesting exotic pathways to the observed systems. The X-ray accretion-powered MSPs, and especially those that transition between an accreting X-ray MSP and a non-accreting radio MSP, give important insight into the physics of accretion on to highly magnetized neutron stars.

    • Author Affiliations

       

      R. N. Manchester1

      1. CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710, Australia.

    • Dates

       
      Published
      13 September 2017
      Manuscript received
      15 May 2017
      Accepted
      28 July 2017

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