Search for pulsations in the LMXB EXO 0748-676

Details Search for pulsations in the LMXB EXO 0748-676 Search for pulsations in the LMXB EXO 0748-676

2011-01-04

arxiv.org/abs/1101.0741v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Accepted for publication in "Research in Astronomy and Astrophysics", 7 pages, 3 figures

Scientific paper

We present here results from our search for X-ray pulsations of the neutron star in the low mass X-ray binary EXO 0748-676 at a frequency near a burst-oscillation frequency of 44.7 Hz. Using the observations made with the Proportional Counter Array on board the Rossi X-ray Timing Explorer we did not find any pulsations in the frequency band of 44.4 Hz to 45.0 Hz and obtained a 3\sigma upper limit of 0.47 % on the pulsed fraction for any possible underlying pulsation in this frequency band.

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