Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.182..647s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 182, Mar. 1978, p. 647-656.
Astronomy and Astrophysics
Astronomy
2
Astronomical Models, Black Holes (Astronomy), High Temperature Plasmas, Magnetohydrodynamic Flow, Stellar Mass Accretion, Axisymmetric Bodies, Cosmology, Disks (Shapes), Radial Velocity, Thermal Instability, Thickness
Scientific paper
A study is made to determine whether or not hot plasma flowing from the inner edge of an accretion disk around a black hole can thicken out of the disk plane with the onset of a Pringle-Rees thermal instability. The instability is caused by the density thinning caused by the sharp increase in radial infall velocity near the radius of the marginally stable circular orbit, or by abrupt variations in viscosity or Lightman-Eardly secular instabilities. An estimate of the thickening timescale is given. Various physically realistic situations involving radial steady-state flow and where significant disk thickening can occur in the region of the radius of the marginally stable circular orbit are identified. It is noted that its evolution into a large spherical cloud would require large velocities of the viscosity parameter and the amount of energy dissipated in the unstable region.
No associations
LandOfFree
Thickening of axisymmetric accretion disks and flows does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Thickening of axisymmetric accretion disks and flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thickening of axisymmetric accretion disks and flows will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1082703