Accretion in cataclysmic binaries. IV. Accretion disks in dwarf novae.
Abstract
Time dependent disk models are defined for accretion disks in dwarf novae outbursts. The models are integrated over the entire vertical structure of the disk and account for instabilities introduced by hydrogen ionization. Consideration is given to the presence and absence of thermal equilibrium, the surface density, temperature, and mass and angular momentum. The models correctly depict dwarf novae outbursts, particularly if low viscosity was assumed at low temperatures. The outbursts occur in either inner or outer parts of the disk. Varying the binary system characteristics and mass transfer rates permit tracing different outburst amplitudes and decline rates as functions of the orbital period.
- Publication:
-
Acta Astronomica
- Pub Date:
- 1984
- Bibcode:
- 1984AcA....34..161S
- Keywords:
-
- Accretion Disks;
- Cataclysmic Variables;
- Dwarf Novae;
- Stellar Mass Accretion;
- Stellar Models;
- Binary Stars;
- Light Curve;
- Stellar Flares;
- Stellar Structure;
- Stellar Temperature;
- Thermal Instability;
- Viscosity;
- Astrophysics