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Strong field tests of gravity with PSR J1141–6545

Published online by Cambridge University Press:  04 June 2018

V. Venkatraman Krishnan ,
W. van Straten ,
P. A. Rosado ,
M. Bailes ,
E. F. Keane ,
R. Bhat  and
C. Flynn
V. Venkatraman Krishnan
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)
W. van Straten
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia Institute for Radio Astronomy and Space Research, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand email: [email protected]
P. A. Rosado
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia
M. Bailes
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav)
E. F. Keane
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) SKA Organisation, Jodrell Bank Observatory, SK11 9DL, UK
R. Bhat
Affiliation:
ARC Centre of Excellence for All-sky Astrophysics (CAASTRO) International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia
C. Flynn
Affiliation:
Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Mail H30, PO Box 218, VIC 3122, Australia ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)
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Abstract

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The initial results from timing observations of PSR J1141–6545, a relativistic pulsar-white dwarf binary system, are presented. Predictions from the timing baseline hint at the most stringent test of gravity by an asymmetric binary yet. The timing precision has been hindered by the dramatic variations of the pulse profile due to geodetic precession, a pulsar glitch and red timing noise. Methods to overcome such timing irregularities are briefly presented along with preliminary results from the test of the General Theory of Relativity (GR) from this pulsar.

Keywords

pulsarsGeneral Relativitygravitational wavesstrong field testspulsar timing
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S337: Pulsar Astrophysics the Next Fifty Years , September 2017 , pp. 142 - 145
Copyright
Copyright © International Astronomical Union 2018 

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