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Parkes observations for project P1032 semester 2020APRS_11
We propose timing observations of southern double neutron star (DNS) systems to obtain precise estimates
of the component masses and thus increase the statistics of neutron star mass distribution. The improved
sensitivity of the Ultra Wideband Low (UWL) receiver will provide a 3X increase in the precision of the time
of arrivals (ToAs) of the pu... morelses compared to the multibeam data. This has the potential to perform quick
measurements of masses for a number of binary systems in the next 1-2 years. We will also use MeerKAT
observations at crucial orbital phases to increase our chances of mass measurements. Increase in the number
of measured NS masses has significant implications for understanding NS internal structure and for stellar
and binary evolution physics. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2020
30 Sep 2020
Creative Commons Attribution 4.0 International Licence
Venkatraman Krishnan, Vivek; Kramer, Michael; Burgay, Marta; Freire, Paulo; Bailes, Matthew; Champion, David; Buchner, Sarah; Parthasarathy, Aditya; Lower, Marcus (2020): Parkes observations for project P1032 semester 2020APRS_11. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2020.
Access to this collection's metadata and/or files (if any) are restricted until 30 Mar 2022.
Australia Telescope National Facility
P1032 - Mass measurements of southern binary pulsar systems
Even after 50 years since the discovery of neutron stars as radio pulsars, their internal composition has remained elusive. Several models have been proposed for the internal structure of neutron stars, each defining a maximum mass that neutron stars can possess. Searching for and finding very heavy neutron stars have the ability to rule out models... more that do not predict such heavy objects should exist. In this proposal, we aim to measure the masses of a number of neutron stars in binary star systems to constrain their internal composition. less
Vivek Venkatraman Krishnan