Orbital evolution of SAX J2103.4545

Details Orbital evolution of SAX J2103.4545 Orbital evolution of SAX J2103.4545

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510207h&link_type=abstract

American Astronomical Society Meeting 205, #102.07; Bulletin of the American Astronomical Society, Vol. 36, p.1512

Astronomy and Astrophysics

Astronomy

Scientific paper

We have had a program of continuous observation of SAX J2103.5+4545 with the Rossi X-Ray Timing Explorer for more than two years. We have been able to unambiguously count the revolutions of the pulsar over this entire period. We have been able to construct an orbital model for the binary motion of this system which is consistent with our earlier published orbit, but which now includes an orbital period derivative for the system of -5.8×10-5. We will present detailed results of our orbital analysis, including the results of our search for precession of the orbit. As we refine our orbital model, we hope to observe a dependence of the pulsar accretion torque on the phase of the highly eccentric orbit. This work is supported in part by a grant from NASA.

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