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Molecular Cooling in the Outer Atmospheres of Red Giants

Published online by Cambridge University Press:  12 April 2016

David Muchmore
David Muchmore*
Affiliation:
Département de Physique, Université de Montréal, C.P. 6128, Suce. A, Montréal, H3C 3J7, Canada

Extract

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In the outer atmospheres of cool giants and supergiants there is a competition between heating by shock waves which develop from noise lower down in the convection zone and radiative cooling. The post-shock cooling is most effective in keeping temperatures low and in damping shocks if molecules (especially CO) form. CO is important both because of its high dissociation energy (11 eV) and its large IR opacity.

Type
5. Chromospheres, Winds and Mass Loss
Information
International Astronomical Union Colloquium , Volume 106: Evolution of Peculiar Red Giant Stars , 1989 , pp. 381
Copyright
Copyright © Cambridge University Press 1989

References

Cuntz, M. and Muchmore, D., 1988, Astr. Ap., submittedGoogle Scholar