The quasi-periodic oscillations of GX349+2

Details The quasi-periodic oscillations of GX349+2 The quasi-periodic oscillations of GX349+2

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.231..999p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 231, April 15, 1988, p. 999-1009.

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Periodic Variations, Stellar Oscillations, Variable Stars, X Ray Binaries, X Ray Sources, Computational Astrophysics, Exosat Satellite, Galactic Bulge, Low Frequencies

Scientific paper

A 50-hr EXOSAT observation of the bright galactic bulge X-ray source GX 349+2 reveals the presence of quasi-periodic oscillations (QPO) at a constant frequency of about 6 Hz. The QPO are strongest when the source is in transition between its quiescent and peak intensities. The coherency of the oscillations is unusually low, but shows no sign of decreasing further at high intensities. Source hardness shows a simple positive correlation with intensity throughout the observation.

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