The Very Young Radio Pulsar J1357-6429

Details The Very Young Radio Pulsar J1357-6429 The Very Young Radio Pulsar J1357-6429

2004-06-23

arxiv.org/abs/astro-ph/0406528v1

Astrophys.J. 611 (2004) L25

Astronomy and Astrophysics

Astrophysics

Accepted for publication in ApJ Letters; 6 pages, 2 included EPS figures

Scientific paper

10.1086/423620

We report the discovery of a radio pulsar with a characteristic age of 7300 years, making it one of the 10 apparently youngest Galactic pulsars known. PSR J1357-6429, with a spin period of P = 166 ms and spin-down luminosity of 3.1e36 ergs/s, was detected during the Parkes multibeam survey of the Galactic plane. We have measured a large rotational glitch in this pulsar, with Delta P/P = -2.4e-6, similar in magnitude to those experienced occasionally by the Vela pulsar. At a nominal distance of only ~ 2.5 kpc, based on the measured free electron column density of 127 pc/cc and the electron distribution model of Cordes & Lazio, this may be, after the Crab, the nearest very young pulsar known. The pulsar is located near the radio supernova remnant candidate G309.8-2.6.

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