Thermal Stability of Magnetized, Optically Thin, Radiative Cooling-dominated Accretion Disks
arXiv:1501.01241 · doi:10.1088/0004-637X/801/1/47
Abstract
We investigate the thermal stability of optically thin, two-temperature, radiative cooling-dominated accretion disks. Our linear analysis shows that the disk is thermally unstable without magnetic fields, which agrees with previous stability analysis on the Shapiro-Lightman-Eardley disk. By taking into account the effects of magnetic fields, however, we find that the disk can be or partly be thermally stable. Our results may be helpful to understand the outflows in optically thin flows. Moreover, such radiative cooling-dominated disks may provide a new explanation of the different behaviors between black hole and neutron star X-ray binaries on the radio/X-ray correlation.
15 pages, 3 figures, accepted for publication in ApJ
References in corpus (4)
- A Global Three Dimensional Radiation Magneto-hydrodynamic Simulation of Super-Eddington Accretion Disks
- Neutrino-Dominated Accretion Models for Gamma-Ray Bursts: Effects of General Relativity and Neutrino Opacity
- Mechanism of Outflows in Accretion System: Advective Cooling Cannot Balance Viscous Heating?
- Thermal stability of thin disk with magnetically driven winds