Vela-size glitch rates in youthful pulsars

Details Vela-size glitch rates in youthful pulsars Vela-size glitch rates in youthful pulsars

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.310..313u&link_type=abstract

Monthly Notices, Volume 310, Issue 2, pp. 313-316.

Astronomy and Astrophysics

Astronomy

16

Methods: Statistical, Stars: Neutron, Pulsars: General

Scientific paper

A total of 71 glitches (Δνν>=10-9) have been reported to date in 30 pulsars. 13 of these glitches come from the Vela pulsar, whose glitches are mostly of magnitude Δνν~10-6. Only about 40per cent of the total glitches are of this magnitude. While glitches of this size have been observed from pulsars aged 104-107yr, 80per cent of them come from the youthful pulsars, aged 104-105yr. For pulsars older than 104yr, the glitch activity is found to be proportional to the logarithm of the spin-down rate, νsolar. Based on this relationship, we identify six other pulsars that are most likely to yield frequent large glitches. Since these pulsars are of comparable ages to the Vela pulsar, real-time glitch detection on them and studies of their subsequent recovery would play a vital role in improving understanding of the neutron star interior and the pulsar glitch mechanisms.

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