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Millisecond oscillators in accreting neutron stars and black holes

W. Kluzniak·M. Abramowicz
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Abstract

Millisecond variability detected in low-mass X-ray binaries (LMXBs) probably reflects motions of accreting fluid in the strong-field gravity of neutron stars or neutron stars. Parametric resonance between two oscillators with unequal eigenfrequencies provides a natural explanation for the 2:3 frequency ratio observed in some black-hole systems, and probably also in the brightest neutron stars. The two oscillators likely correspond to the meridional and radial epicyclic motions.

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W. Kluzniak, M. Abramowicz. 2003-04-18. Millisecond oscillators in accreting neutron stars and black holes. https://arxiv.org/abs/astro-ph/0304345

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