Detection of a glitch in the pulsar J1709-4429

Marcus E. Lower, Chris Flynn, Matthew Bailes, Ewan D. Barr, Timothy Bateman, Shivani Bhandari, Manisha Caleb, Duncan Campbell-Wilson, Cherie Day, Adam Deller, Wael Farah, Anne J. Green, Vivek Gupta, Richard W. Hunstead, Andrew Jameson, Fabian Jankowski, Evan F. Keane, Vivek Venkatraman Krishnan, Stefan Osłowski, Aditya Parthasarathy, Kathryn Plant, Danny C. Price, Vikram Ravi, Ryan M. Shannon, David Temby, Glen Torr, Glenn Urquhart

Published 2018-08-07Version 1

We report the detection of a glitch event in the pulsar J1709$-$4429 (also known as B1706$-$44) during regular monitoring observations with the Molonglo Observatory Synthesis Telescope (UTMOST). The glitch was found during timing operations, in which we regularly observe over 400 pulsars with up to daily cadence, while commensally searching for Rotating Radio Transients, pulsars, and FRBs. With a fractional size of $\Delta\nu/\nu \approx 52.4 \times10^{-9}$, the glitch reported here is by far the smallest known for this pulsar, attesting to the efficacy of glitch searches with high cadence using UTMOST.