Test of an Acoustic Mechanism for Atmospheric Heating in Dynamo-Deficient F Stars
Abstract
In a qualitative sense, the heating of chromospheres and coronae has long been ascribed to either acoustic or magnetic heating. However, quantitative discussions of the energy balance with detailed comparison to the fluxes of chromospheric emission lines have begun to appear only recently. The aim of this work is to observe F stars where magnetic effects might be expected to be rather small, thereby allowing us hopefully to access acoustically heated atmospheres.
- Publication:
-
National Aeronautics and Space Administration Report
- Pub Date:
- January 1996
- Bibcode:
- 1996nasa.reptU....M
- Keywords:
-
- F Stars;
- Magnetic Effects;
- Stellar Spectra;
- Line Spectra;
- Atmospheric Heating;
- Chromosphere;
- Coronas;
- Extreme Ultraviolet Explorer Satellite;
- Emission Spectra;
- Spectrum Analysis;
- Ultraviolet Spectra;
- Astrophysics