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Chromospheric and coronal heating mechanismsDissipation mechanisms in the chromosphere were examined. The problem of a heat flux from a cool region of the star to a hot region of the star, which violates our second law of thermodynamics is discussed. It is suggested that this is caused by a nonthermal energy flux. While convection transports the thermal flux, a very small percentage is converted into a nonthermal flux. The major part of the outgoing convective energy is turned back into the radiation field which gets decoupled from the star when the star becomes transparent and the radiant energy escapes to space. The small nonthermal flux is transmitted upwards and becomes the dominant energy flux still coupled to the star. The importance of recycling of energy via advection and conduction is emphasized.
Document ID
19830012578
Document Type
Conference Paper
Authors
Leibacher, J. (Lockheed Missiles and Space Co. Palo Alto, CA, United States)
Stein, R. F. (Michigan State Univ.)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: Smithsonian Astrophysics Observatory 2nd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, Vol. 1
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAS5-23758
CONTRACT_GRANT: NSF AST-79-19465
CONTRACT_GRANT: NSG-7293
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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