Shapiro Delay in the Binary Millisecond Pulsar PSR J1909-3744

Details Shapiro Delay in the Binary Millisecond Pulsar PSR J1909-3744 Shapiro Delay in the Binary Millisecond Pulsar PSR J1909-3744

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..328..373j&link_type=abstract

Binary Radio Pulsars, ASP Conference Series, Vol. 328, Proceedings of the conference held 11-17 January, 2004, Aspen, Colorado,

Astronomy and Astrophysics

Astronomy

Scientific paper

PSR J1909-3744, a 2.95 millisecond pulsar in a nearly circular 1.53 day orbit, was discovered in a recent survey for pulsars at high galactic latitude using the 64-m Parkes telescope. Its narrow pulse width of 43 μs allows pulse arrival times to be determined with great accuracy. Analysis of arrival times clearly shows strong Shapiro delay. We expect that further timing observations, combined with the companion's radial velocity obtained through optical spectroscopy, will allow a very accurate determination of the pulsar's mass. Weighted rms timing residuals of only 270 ns indicate that this pulsar will be very useful for high-precision timing experiments.

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