---
OA_place: publisher
OA_type: diamond
PlanS_conform: '1'
_id: '22381'
abstract:
- lang: eng
  text: "Context. X-ray binaries exhibit complex variability patterns studied in the
    power spectrum. These include the broadband noise (BBN)\r\ncomponents and various
    types of narrow components called quasi-periodic oscillations (QPOs). There is
    currently no consensus about\r\nwhat determines the presence or absence of the
    BBN or what generates the QPOs. Many believe that QPO generation is due to framedragging
    effects caused by Lense–Thirring torques.\r\nAims. We investigated the potential
    impact of frame-dragging effects on the accretion disk itself. In particular,
    we focused on its\r\nimpact on the observed variability and on the presence (and
    types) of associated QPOs.\r\nMethods. We made analytical estimates to assess
    the potential presence of a geometric warp in the inner accretion disk during
    state\r\ntransitions.\r\nResults. We show that the presence of a warp can modify
    the spectral-timing properties in a way that matches the observed transition\r\nbetween
    QPO types during outbursts. We also discuss the peculiar case of Cyg X-1, as well
    as how the hard-to-soft transition could\r\nbe driven by the warp itself.\r\nConclusions.
    The (expected) emergence of a warp provides a consistent explanation for the evolution
    of both the BBN and the QPO\r\nproperties during state transitions. This offers
    a first path toward unifying the variability of black hole X-ray binaries."
acknowledgement: "GM acknowledges support from the Polish National Science Center
  grant 2023/48/Q/ST9/00138 and the Academy of Finland grant 355672. The authors thank
  the Editor for their insightful comments and effective stewardship of the review
  process. SGDT acknowledges support under\r\nSTFC Grant ST/X001113/1. This work made
  use of the python packages\r\nMatplotlib (Hunter 2007), NumPy (Harris et al. 2020),
  and Stingray v2.2\r\n(Huppenkothen et al. 2019; Bachetti et al. 2024b,a)."
article_number: A387
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: G.
  full_name: Marcel, G.
  last_name: Marcel
- first_name: S. G. D.
  full_name: Turner, S. G. D.
  last_name: Turner
- first_name: B. J.
  full_name: Ricketts, B. J.
  last_name: Ricketts
- first_name: V.
  full_name: López-Barquero, V.
  last_name: López-Barquero
- first_name: D. J. K.
  full_name: Buisson, D. J. K.
  last_name: Buisson
- first_name: F.
  full_name: Vincentelli, F.
  last_name: Vincentelli
- first_name: M.
  full_name: Middleton, M.
  last_name: Middleton
- first_name: C.S.
  full_name: Reynolds, C.S.
  last_name: Reynolds
- first_name: Mark
  full_name: Avara, Mark
  id: 24edc561-7790-11f0-acf5-82cd0823fe7e
  last_name: Avara
citation:
  ama: 'Marcel G, Turner SGD, Ricketts BJ, et al. Disk warping and black hole X-ray
    binaries: I. Tentative unification of low-frequency quasi-periodic oscillations.
    <i>Astronomy &#38; Astrophysics</i>. 2026;710. doi:<a href="https://doi.org/10.1051/0004-6361/202558103">10.1051/0004-6361/202558103</a>'
  apa: 'Marcel, G., Turner, S. G. D., Ricketts, B. J., López-Barquero, V., Buisson,
    D. J. K., Vincentelli, F., … Avara, M. (2026). Disk warping and black hole X-ray
    binaries: I. Tentative unification of low-frequency quasi-periodic oscillations.
    <i>Astronomy &#38; Astrophysics</i>. EDP Sciences. <a href="https://doi.org/10.1051/0004-6361/202558103">https://doi.org/10.1051/0004-6361/202558103</a>'
  chicago: 'Marcel, G., S. G. D. Turner, B. J. Ricketts, V. López-Barquero, D. J.
    K. Buisson, F. Vincentelli, M. Middleton, C.S. Reynolds, and Mark Avara. “Disk
    Warping and Black Hole X-Ray Binaries: I. Tentative Unification of Low-Frequency
    Quasi-Periodic Oscillations.” <i>Astronomy &#38; Astrophysics</i>. EDP Sciences,
    2026. <a href="https://doi.org/10.1051/0004-6361/202558103">https://doi.org/10.1051/0004-6361/202558103</a>.'
  ieee: 'G. Marcel <i>et al.</i>, “Disk warping and black hole X-ray binaries: I.
    Tentative unification of low-frequency quasi-periodic oscillations,” <i>Astronomy
    &#38; Astrophysics</i>, vol. 710. EDP Sciences, 2026.'
  ista: 'Marcel G, Turner SGD, Ricketts BJ, López-Barquero V, Buisson DJK, Vincentelli
    F, Middleton M, Reynolds CS, Avara M. 2026. Disk warping and black hole X-ray
    binaries: I. Tentative unification of low-frequency quasi-periodic oscillations.
    Astronomy &#38; Astrophysics. 710, A387.'
  mla: 'Marcel, G., et al. “Disk Warping and Black Hole X-Ray Binaries: I. Tentative
    Unification of Low-Frequency Quasi-Periodic Oscillations.” <i>Astronomy &#38;
    Astrophysics</i>, vol. 710, A387, EDP Sciences, 2026, doi:<a href="https://doi.org/10.1051/0004-6361/202558103">10.1051/0004-6361/202558103</a>.'
  short: G. Marcel, S.G.D. Turner, B.J. Ricketts, V. López-Barquero, D.J.K. Buisson,
    F. Vincentelli, M. Middleton, C.S. Reynolds, M. Avara, Astronomy &#38; Astrophysics
    710 (2026).
das_tickbox: '0'
date_created: 2026-07-21T10:29:36Z
date_published: 2026-06-01T00:00:00Z
date_updated: 2026-07-21T12:22:52Z
day: '01'
ddc:
- '520'
department:
- _id: ZoHa
doi: 10.1051/0004-6361/202558103
external_id:
  arxiv:
  - '2511.10474'
file:
- access_level: open_access
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  creator: dernst
  date_created: 2026-07-21T12:20:49Z
  date_updated: 2026-07-21T12:20:49Z
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  file_size: 3286905
  relation: main_file
  success: 1
file_date_updated: 2026-07-21T12:20:49Z
has_accepted_license: '1'
intvolume: '       710'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
  eissn:
  - 1432-0746
  issn:
  - 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: 'Disk warping and black hole X-ray binaries: I. Tentative unification of low-frequency
  quasi-periodic oscillations'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 710
year: '2026'
...
