A Dynamical Model of the Corona
Abstract
The hydrodynamic equations for an ideal, inviscid, fully ionized hydrogen gas in a gravitational, but not magnetic, field are solved by an explicit Lax-Wendroff two-step technique using a one-dimensional slab symmetry. Radiation and thermal conductivity are included. The model spans 100000 km starting from the chromosphere-corona transition region. An initially isothermal gas is seen to evolve coronal properties in 4000 s, by which time it settles into dynamic equilibrium characterized by a 2000 km transition region, a temperature maximum of 1.6 × 106 K at a height of 60000 km, and a solar wind mass flux of 10-9 g cm-2 s-1.
- Publication:
-
Solar Physics
- Pub Date:
- August 1973
- DOI:
- 10.1007/BF00152813
- Bibcode:
- 1973SoPh...31..351B
- Keywords:
-
- Hydrogen;
- Radiation;
- Thermal Conductivity;
- Solar Wind;
- Transition Region