Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.371..337o&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 371, Issue 1, pp. 337-342.
Astronomy and Astrophysics
Astronomy
9
Astrometry, Binaries: General, Stars: Neutron, Pulsars: Individual: Psr J1600-3053, White Dwarfs
Scientific paper
We present the results of a high-precision timing campaign directed at the binary millisecond pulsar J1600-3053. Submicrosecond pulsar timing has long been the domain of bright, low dispersion measure millisecond pulsars or large diameter telescopes. This experiment, conducted using the Parkes radio telescope in New South Wales, Australia, and utilizing the latest baseband recording hardware, has allowed this pulsar, although distant and faint, to present residuals to a model of its spin behaviour of 650 ns over a period of more than 2 yr. We have also constrained the orbital inclination via Shapiro delay to be between 59° and 70° to 95 per cent confidence and obtained a scintillation velocity measurement indicating a transverse velocity less than 84kms-1. This pulsar is demonstrating remarkable stability comparable to, and in most cases improving upon, the very best long-term pulsar timing experiments. If this stability is maintained, the current limits on the energy density of the stochastic gravitational wave background will be reached in four more years.
Bailes Matthew
Hotan Aidan W.
Jacoby Barry A.
Ord Stephen M.
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