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Correlations in Quasi-Periodic Oscillation and Noise Frequencies Among Neutron-Star and Black-Hole X-ray Binaries

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arxiv astro-ph/9902130 v1 pith:WNO2KWEC submitted 1999-02-08 astro-ph

Dimitrios Psaltis (Harvard-Smithsonian CfA) , Tomaso Belloni , Michiel van der Klis (University of Amsterdam) This is my paper · ORCID
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keywords black-holecomponentsneutron-starnoiseqposbinariescorrelationfrequencies
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We study systematically the ~0.1-1200 Hz quasi-periodic oscillations (QPOs) and broad noise components observed in the power spectra of non-pulsing neutron-star and black-hole low-mass X-ray binaries. We show that among these components we can identify two, occurring over a wide range of source types and luminosities, whose frequencies follow a tight correlation. The variability components involved in this correlation include neutron-star kilohertz QPOs and horizontal-branch oscillations, as well as black-hole QPOs and noise components. Our results suggest that the same types of variability may occur in both neutron-star and black-hole systems over three orders of magnitude in frequency and with coherences that vary widely but systematically. Confirmation of this hypothesis will strongly constrain theoretical models of these phenomena and provide additional clues to understanding their nature.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Discovery of a quasi-periodic oscillation non-harmonically related to the Type-C QPO in the hard intermedidate state of MAXI J1820+070

    astro-ph.HE 2026-06 unverdicted novelty 7.0 of 10

    Detection of a non-harmonic QPO precursor to Type-B in the HIMS of MAXI J1820+070 using NICER timing data.

  2. Quasi-Periodic Oscillations due to radiative feedback mechanism between the disc and corona

    astro-ph.HE 2025-07 conditional novelty 6.0 of 10

    A disc-corona radiative feedback loop with a time delay produces QPOs at 1/(tau_A+tau_B), and its analytic power spectrum fits AstroSat data of two black hole binaries.

  3. Understanding corona and disk evolution in black hole X-ray binaries through a comprehensive study of their broadband variability and QPO characteristics

    astro-ph.HE 2026-05 unverdicted novelty 4.0 of 10

    Comprehensive analysis of AstroSat data shows a sign change in QPO time lags at ~2 Hz for high-inclination sources, consistent with a transition from elongated jet-like to compact corona.

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