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Parkes observations for project P1006 semester 2019APRS_12
We propose observations with the ultra-wide-bandwidth, low-frequency receiver installed at the Parkes telescope to carry out the first ultra-high time resolution, coherently de-dispersed search for pulsars in globular clusters. We have chosen the 11 most likely clusters for new discoveries. These clusters all have at least three pulsars already k... morenown allowing us to have a precise estimate of the pulsar dispersion measures and our observations will provide the first ultra-wide-bandwidth observation of these pulsars. Our observing strategy will enable us to search for extremely narrow pulsars and even pulsars with sub-millisecond periods. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2019
30 Sep 2019
Creative Commons Attribution 4.0 International Licence
Zhang, Lei; Hobbs, George; Toomey, Lawrence; Li, Di; Cameron, Andrew; Dai, Shi; Zhu, Weiwei (2019): Parkes observations for project P1006 semester 2019APRS_12. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2019.
Access to this collection's metadata and/or files (if any) are restricted until 30 Mar 2021.
Australia Telescope National Facility
P1006 - The first ultra-high time resolution coherently de-dispersed search for new pulsars in globular clusters
One of the primary goals of modern-day pulsar astronomy is to discover a millisecond pulsar in orbit around a stellar mass black hole. Such a discovery would allow us to carry out precision tests of gravity and place stringent bounds on a broad class of theories beyond general relativity. One likely place to look is in the centre of globular cluste... morers where there are many stars. A high time resolution search for pulsars potentially would allow us to find such millisecond pulsars or at least enable us to determine whether there is a cut-off in the maximum spin frequency of a pulsar. The Parkes telescope has recently been upgraded and our observations will provide the most sensitive search to date in globular clusters to look for new pulsars. less
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