Acoustic Waves in the Solar Atmosphere. V. On the Chromospheric Temperature Rise
Abstract
Summary. In this fifth of a series of papers studying large amplitude acoustic waves we use methods developed in previous papers to compute the propagation of acoustic waves into the chromosphere. The temperature minimum is found close to the point of shock formation and the chromospheric temperature rise is determined after the mean quantities reach a steady state. The position of the chromospheric rise depends primarily on the initial acoustic flux. Photo spheric temperature enhancement and the temperature depression of 200 to 500 K at the temperature minimum region caused by the nonlinearity of both Planck function and opacity are discussed. The large amplitude of our waves causes mass loss. Amplification of the acoustic flux due to the - mechanism is found in the region near unity optical depth. Key words: solar chromosphere - acoustic heating - mass loss - -mechanism
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- November 1978
- Bibcode:
- 1978A&A....70..487U