Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aipc.1357..113b&link_type=abstract
RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE. AIP Conference Proceedings, Volume 1357, pp. 113-116
Astronomy and Astrophysics
Astronomy
Radiotelescopes, Deformation, Frequency Measurement, Radioastronomy, Radio Telescopes And Instrumentation, Heterodyne Receivers, Crustal Movements And Deformation, Time And Frequency, Radio, Microwave
Scientific paper
The Vela pulsar has been monitored almost daily since 1985 using the HartRAO 26 m antenna. During this time ten large glitches have been observed. In 1994 the Vela pulsar experienced two large glitches (Δν/ν = 8.61×10-7 and Δν/ν = 1.99×10-7) separated by only 32 days. The event is accompanied by typical transients in rotation frequency derivative (ν˙) although all of the long-term offset occurs at the first event and the rapidly-decaying transient is only seen with the second spin-up. We discuss the unique features of these glitches and show that they do not seem to fit in with the widely accepted creep theory of post-glitch recovery.
Buchner Stephen
Flanagan C.
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