Astrophysics and Space Science

, Volume 308, Issue 1, pp 585–589

Two decades of pulsar timing of Vela

Authors

    • Marie Curie Fellow Observatorio Astronómico Nacional
  • Dion Lewis
    • CSIRO
  • Peter McCulloch
    • University of Tasmania
Original Article

DOI: 10.1007/s10509-007-9372-4

Cite this article as:
Dodson, R., Lewis, D. & McCulloch, P. Astrophys Space Sci (2007) 308: 585. doi:10.1007/s10509-007-9372-4

Abstract

Pulsar timing at the Mt Pleasant observatory has focused on Vela, which can be tracked for 18 hours of the day. These nearly continuous timing records extend over 24 years allowing a greater insight into details of timing noise, micro glitches and other more exotic effects. In particular we report the glitch parameters of the 2004 event, along with the reconfirmation that the spin up for the Vela pulsar occurs instantaneously to the accuracy of the data. This places a lower limit of about 30 seconds for the acceleration of the pulsar to the new rotational frequency. We also confirm of the low braking index for Vela, and the continued fall in the DM for this pulsar.

Keywords

Stars: neutron Dense matter Pulsars: individual (PSR B0833-45)

PACS

97.60.Jd 97.60.Gb

Copyright information

© Springer Science+Business Media B.V. 2007