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Parkes observations for project P1012 semester 2019APRS_02
This proposal intends to confirm 10 candidate pulsars in a certain dispersion measures (DMs) range. Using new machine learning ranking and image processing methods, we have identified new candidates (with relatively low dispersion measures) in the Parkes Multibeam Pulsar Survey (PMPS) data. The initial processing of the multibeam survey was so succ... moreessful that relatively low S/N candidates were placed in a "tier 2" category and never followed-up for re-observation. We, therefore, expect that a large number of relatively weak pulsars with S/N ratios around 8 will later be identified as "real" pulsars. We have already shown, with previous observations, that two of our ranked candidates are pulsars that were missed by the previous processing of the survey and wish to carry out confirmation observation of the next ten of our top-ranked candidates. The new discoveries of low-DM pulsars will significantly improve our understanding of the nearby neutron star population, which may generate a gamma-ray background affecting all related experiments. Additionally, it will also improve our knowledge of the completeness of low DM pulsars in existing surveys, and in turn, help improve the design and performance of further pulsar search surveys. In the last round we were allocated 5 hours, but unfortunately, these were canceled because of the NASA Voyager Voyager tracking. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2019
30 Sep 2019
Creative Commons Attribution 4.0 International Licence
Wang, Shen; Hobbs, George; Cordes, Jim; Lorimer, Duncan Ross; Chatterjee, Shami; Li, Di; Cameron, Andrew; Wang, Pei; Qian, Lei; Zhu, Weiwei; Pan, Zhichen; Lynch, Ryan (2019): Parkes observations for project P1012 semester 2019APRS_02. 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
P1012 - Confirming a Certain Dispersion Measures Range of Pulsar Candidates
The Parkes Multibeam Pulsar Survey more than doubled the number of known pulsars. The data have been archived and numerous successful attempts have been made to find new pulsars hiding in the data. We have joined the search using a new suite of software developed. Our new software has indicated, possible new pulsar candidates that we wish to re-obs... moreerve with the Parkes telescope in order to determine whether or not they actually are pulsars. We have already shown that our ranking methods work, by recently confirming two new pulsars from the archival data that had been missed by previous analyses. less
Duncan Ross Lorimer