Hydrodynamic Effects on the QPO Frequencies of Accreting Compact Objects

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dc.creatorPsaltis, Dimitrios
dc.date2000-10-16
dc.date.accessioned2026-07-25T17:55:27Z
dc.descriptionThe variability properties of accreting compact objects predicted by dynamical models are characterized by a number of distinct frequencies that are specific to each model. Because the accretion disks around neutron stars and black holes are hydrodynamic flows, these modulation frequencies cannot be strictly equal to test particle frequencies. I discuss several implications of hydrodynamic corrections to the modulation frequencies predicted by dynamical models. Finally, I show that the recent detection of yet a third kHz QPO in three neutron-star systems favors a previously developed model that attributes the various QPO frequencies to fundamental general relativistic frequencies in the accretion flow.
dc.description9 pages, 2 figures, submitted to the Astrophysical Journal Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0010316
dc.identifierhttp://arxiv.org/abs/astro-ph/0010316
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/51953
dc.subjectAstrophysics
dc.titleHydrodynamic Effects on the QPO Frequencies of Accreting Compact Objects
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