Abstract
Quasi-periodic oscillations with frequencies in the range 5–50 Hz have recently been discovered in X-rays from two bright galactic-bulge sources and ScoX-1. We propose that these sources are weakly magnetic neutron stars accreting from disks in which the plasma is clumped. The interaction of the magnetosphere with clumps in the inner disk modulates the accretion rate, causing oscillations in the X-ray flux with many of the observed properties.
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Lamb, F., Shibazaki, N., Alpar, M. et al. Quasi-periodic oscillations in bright galactic-bulge X-ray sources. Nature 317, 681–687 (1985). https://doi.org/10.1038/317681a0
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DOI: https://doi.org/10.1038/317681a0
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