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Parkes observations for project P1027 semester 2019OCTS_04
We propose to carry out Parkes follow-up observations of the new millisecond pulsar, J1431-6328, discovered by the Australian SKA Pathfinder (ASKAP) and Parkes Ultra-Wideband Low (UWL) receiver. The discovery demonstrated the power of identifying pulsar candidates in radio continuum images and then following up with high time resolution observation... mores. The discovery itself is also interesting. PSR J1431-6328 has a spin period of 2.77 ms, and is likely to be in a binary system. Follow-up observations will enable us to measure the binary parameters, which will guide future multi-wavelength observations and might shed new lights on the binary evolution. The short spin period, relatively large flux density and sky location of PSR J1431-6328 also make it a promising candidate for pulsar timing arrays. The proposed observations will allow us to obtain a timing solution of this new pulsar, and are therefore essential for future timing observations. less
Astronomical and Space Sciences not elsewhere classified
01 Oct 2019
31 Mar 2020
Creative Commons Attribution 4.0 International Licence
Dai, Shi; Murphy, Tara; Lenc, Emil; Hobbs, George; Cameron, Andrew; Kaplan, David (2019): Parkes observations for project P1027 semester 2019OCTS_04. 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 Sep 2021.
Australia Telescope National Facility
P1027 - Follow-up of the ASKAP discovery of millisecond pulsar J1431-6328
Neutron stars contain more mass than the Sun collapsed into the size of a city. Many of these neutron stars rotate hundreds of times per second and emit beams of radio waves that we can detect on Earth, in lighthouse-like fashion. Traditionally, these extreme objects are found by searching for periodic signals recorded by single dish telescopes, su... morech as Parkes. However, recently we showed that neutron stars can also be identified in radio images with observations taken by the Australian SKA Pathfinder, ASKAP. The new discovery is a neutron star that rotates 370 times per second, named PSR J1431-6328. We propose to use Parkes to observe this neutron star, and find out if it is in a binary with another star. Eventually, we would like to use this pulsar to detect gravitational waves coming from the early Universe. less