Timing of accreting neutron stars with the ART-P telescope aboard GRANAT

Details Timing of accreting neutron stars with the ART-P telescope aboard GRANAT Timing of accreting neutron stars with the ART-P telescope aboard GRANAT

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16..135l&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 16, no. 3, p. 135-138

Astronomy and Astrophysics

Astronomy

Granat Satellite, Neutron Stars, Pulsars, X Ray Astronomy, X Ray Stars, Doppler Effect, Energy Spectra, Periodic Variations, Stellar Rotation, X Ray Telescopes

Scientific paper

We report here some results obtained with the ART-P telescope aboard the GRANAT observatory under the program of X-ray pulsars timing. In 1990-1992 pulse periods and secular trends of 16 X-ray pulsars were measured with the instrument, and their pulse profiles in different energy bands were determined. Among the most interesting results of ART-P there were: discovery of a transition from spin-up to spin-down in 4U1626-67, observations of a change in the pulse profile shape of this source associated with this transition, determination of binary parameters of 4U0115+63 and the upper limits of the mass function and the projected major semiaxis of 4U1626-67.

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