The stability of accretion disks to short wavelength perturbations

Details The stability of accretion disks to short wavelength perturbations The stability of accretion disks to short wavelength perturbations

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...244..290l&link_type=abstract

Astrophysical Journal, Part 1, vol. 244, Feb. 15, 1981, p. 290-298.

Other

19

Disks (Shapes), Dynamic Stability, Perturbation Theory, Stellar Mass Accretion, Isothermal Processes, Navier-Stokes Equation, Partial Differential Equations

Scientific paper

The stability of accretion disks against short wavelength perturbations is analyzed. The disk is shown to be unstable to slow thermal perturbations propagating in the z-direction for sufficiently high values of the stress parameter alpha and sufficiently low values of the ratio of gas to total pressure. The acoustic flux from the 'middle region' of the disk is estimated and discussed.

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