Skip to main content
We gratefully acknowledge support from the Simons Foundation, member institutions, and all contributors. Donate
arXiv logo
Cornell University Logo

Astrophysics

arXiv:astro-ph/0402084 (astro-ph)
[Submitted on 3 Feb 2004 (v1), last revised 27 Feb 2004 (this version, v2)]

Title:Resonance in Forced Oscillations of an Accretion Disk and Kilohertz Quasi Periodic Oscillations

Authors:William H. Lee, Marek A. Abramowicz, Wlodek Kluzniak
View PDF
Abstract: We have performed numerical simulations of a radially perturbed "accretion" torus around a black hole or neutron star and find that the torus performs radial and vertical motions at the appropriate epicyclic frequencies. We find clear evidence that vertical motions are excited in a non-linear resonance when the applied perturbation is periodic in time. The strongest resonant response occurs when the frequency difference of the two oscillations is equal to one-half the forcing frequency, precisely as recently observed in the accreting pulsar, SAX J1808.4-3658, where the observed kHz QPO peak separation is half the spin frequency of 401 Hz.
Comments: Matches published version. One important typo corrected in section 2.2
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0402084
  (or arXiv:astro-ph/0402084v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0402084
Journal reference: Astrophys.J. 603 (2004) L93-L96
Related DOI: https://doi.org/10.1086/383245

Submission history

From: William H. Lee [view email]
[v1] Tue, 3 Feb 2004 21:06:00 UTC (26 KB)
[v2] Fri, 27 Feb 2004 16:02:17 UTC (26 KB)
Full-text links:

Access Paper:

  • View PDF
  • TeX Source
  • Other Formats
view license
Current browse context:
astro-ph
< prev   |   next >
new | recent | 2004-02

References & Citations

export BibTeX citation

Bookmark

BibSonomy logo Reddit logo

Bibliographic and Citation Tools

Bibliographic Explorer (What is the Explorer?)
Connected Papers (What is Connected Papers?)
Litmaps (What is Litmaps?)
scite Smart Citations (What are Smart Citations?)

Code, Data and Media Associated with this Article

alphaXiv (What is alphaXiv?)
CatalyzeX Code Finder for Papers (What is CatalyzeX?)
DagsHub (What is DagsHub?)
Gotit.pub (What is GotitPub?)
Hugging Face (What is Huggingface?)
Papers with Code (What is Papers with Code?)
ScienceCast (What is ScienceCast?)

Demos

Replicate (What is Replicate?)
Hugging Face Spaces (What is Spaces?)
TXYZ.AI (What is TXYZ.AI?)

Recommenders and Search Tools

Influence Flower (What are Influence Flowers?)
CORE Recommender (What is CORE?)
IArxiv Recommender (What is IArxiv?)

arXivLabs: experimental projects with community collaborators

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)