Other
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1357..134r&link_type=abstract
RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE. AIP Conference Proceedings, Volume 1357, pp. 134-135
Other
Supernovae, Neutron Stars, Time Series, Rotation Measurement, Supernovae, Neutron Stars, Time Series Analysis, Time Variability, Velocity, Acceleration, And Rotation
Scientific paper
We present the results from 5 years of timing observations with the GMRT of the young pulsar J1833-1034, in the galactic supernova remnant G21.5-0.9, which was discovered at the GMRT. Timing of J1833-1034 reveals the presence of as many as 4 glitches in the 5 years of data. These glitches show fractional change of the rotational frequency ranging from 1×10-9 to 5×10-9, with no evidence for any appreciable relaxation of the rotational frequency visible after the glitches. After fitting for the glitches, the pulsar rotational frequency, as well as its first and second derivatives, are found to be fairly constant over the full data set, and yield a plausible value for the breaking index of around 2.1.
This pulsar appears to show fairly frequent occurrence of low amplitude glitches, and estimates of its glitch activity parameter put it in a regime similar to the Crab pulsar, and very different from other glitching pulsars.
Gupta Yashwant
Lewandowski Wojciech
Roy Jayanta
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