Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3777....1e&link_type=abstract
The Astronomer's Telegram, #3777
Astronomy and Astrophysics
Astronomy
1
Radio, Neutron Star, Pulsar
Scientific paper
The normal spindown of the Crab pulsar was suddenly interrupted by an increase in its rotation rate at around 12:30 GTM on the 10th of November 2011. Using the almost daily observations performed by the 42-ft (at 608 MHz) and Lovell (at 1520 MHz) radiotelescopes at Jodrell Bank Observatory, we measure a difference of dNu=1.4 +- 0.1 uHz between the projected spin frequency using pre-glitch ephemerides (http://www.jb.man.ac.uk/pulsar/crab.html) and the current observations.
Bassa Cees
Espinoza Cristobal M.
Graham Smith F.
Janssen Gemma
Jordan Cathy
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