Thermal Stability in Two-Temperature Advection-Dominated Accretion Disks against Local Perturbations

Details Thermal Stability in Two-Temperature Advection-Dominated Accretion Disks against Local Perturbations Thermal Stability in Two-Temperature Advection-Dominated Accretion Disks against Local Perturbations

Apr 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997pasj...49..227y&link_type=abstract

Publications of the Astronomical Society of Japan, v.49, p.227-233.

Astronomy and Astrophysics

Astronomy

2

Accretion, Accretion Disks, Instabilities, Stars: X-Rays

Scientific paper

The stability of two-temperature advection-dominated accretion disks is examined against axisymmetric local thermal perturbations. The disks are optically thin. The results show that there is a weakly unstable mode due to radiation effects. In the case that thermal conduction is efficient, however, the mode is stabilized. The magnetic field also stabilizes the local thermal mode.

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