Boundary conditions at sonic radius for inertial-acoustic oscillations in transonic accretion disks

Clicks: 12
ID: 337366
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #17 of 26 articles by views in publications of the astronomical society of japan

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract Wave equations describing acoustic waves in transonic accretion flows have singular behaviors at the transonic point, because any acoustic informations cannot transport themselves upstream through the sonic radius. Under a simplified geometrically thin (relativistic) advection-dominated disk, the conditions that the singularity at the sonic radius is not a real singularity but a regular (apparent) one are derived for the inertial-acoustic oscillations (p-mode oscillations). A purpose of this derivation is to use the results as the inner boundary conditions in studying numerically the behaviors of the global trapped p-mode oscillations in transonic accretion disks. The p-mode oscillation, which is degenerated to a single mode in the disk with no accretion flow, is split into two ones by the effects of accretion flows. For each of these two split modes, the conditions of regular singularity at the sonic radius are derived. The derived conditions should be used as inner boundary conditions of oscillations when we examine trapping of global p-mode oscillations in transonic advection-dominated accretion disks.
Reference Key
openalex_W7223874412 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Shoji Kato, Kenji Nakamura
Are you one of these authors? Claim your profile
Journal publications of the astronomical society of japan
Year 2026
DOI
10.1093/pasj/psag141
URL
https://doi.org/10.1093/pasj/psag141
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.