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| Paper: |
On the possibility of purely acoustically heated coronae |
| Volume: |
9, Cool Stars, Stellar Systems, and the Sun: Sixth Cambridge Workshop |
| Page: |
51 |
| Authors: |
Hammer, R.; Ulmschneider, P. |
| Abstract: |
The notion of coronae heated by purely acoustic processes is developed theoretically based on the existence of chromospheres heated by acoustic means only. Acoustic wave energy flux is considered in light of the minimum energy requirements of coronae, and valid purely acoustic coronae occur when the coronal energy loss flux is balanced by the acoustic flux. Very low coronal pressures are related to purely acoustically heated coronae, but in slowly rotating stars, the observable coronae are probably not produced acoustically. |
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