The distribution of kHz QPO frequencies in Sco X-1

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dc.creatorBelloni, Tomaso
dc.creatorMendez, Mariano
dc.creatorHoman, Jeroen
dc.date2004-09-17
dc.date.accessioned2026-07-07T02:14:39Z
dc.date.available2026-07-07T02:14:39Z
dc.descriptionThe frequencies of kHz Quasi-Periodic Oscillations in the bright Low-Mass X-ray Binary Sco X-1 have been reported to appear preferentially in a 3:2 ratio. We show that a proper statistical analysis of those RXTE data upon which the claim is based indicated a 2.4 sigma deviation from a constant distribution in ratios. The analysis of a much larger RXTE/PCA dataset shows that there is no sharp concentration around a 3:2 ratio, but that the ratios are broadly distributed over the range 820-1150 Hz.
dc.descriptionto appear in the proceedings of the NATO/ASI "The Elecromagnetic Spectrum of Neu tron Stars", June 7-18 2004, Marmaris, Turkey (Eds. A. Baykal, S.K. Yerli, M. Gilfanov, S. Grebenev), 4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0409432
dc.identifierhttp://arxiv.org/abs/astro-ph/0409432
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8200
dc.subjectAstrophysics
dc.titleThe distribution of kHz QPO frequencies in Sco X-1
dc.typetext

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