Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer

Details Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mnras.308..751r&link_type=abstract

Monthly Notices, Volume 308, Issue 3, pp. 751-762.

Computer Science

31

Scientific paper

We study the vertical structure of the transition layer between an accretion disc and a corona in the context of the existence of a two-phase medium in thermally unstable regions. The disc is illuminated by hard X-ray radiation, and satisfies the condition of hydrostatic equilibrium. We take into account the energy exchange between the hot, Compton-heated corona (~10^8K) and cool disc (~10^4K) arising from both radiative processes and thermal conduction. In the case including thermal conduction, we perform a local stability analysis, and conclude that thermal conduction does not suppress thermal instability. In spite of the continuous temperature profile T(τ) there are regions of strong temperature gradient, in which spontaneous perturbations can lead to cloud condensation in the transition layer. We determine the minimum size λ_TC of such a perturbation.

Affiliated with

Also associated with

No associations

Rating

Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer 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 Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal conduction between an accretion disc and a corona in active galactic nuclei: vertical structure of the transition layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-987531