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Internal gravity waves in the solar atmosphere. II - Effects of radiative dampingIn the solar photosphere, temperature fluctuations associated with acoustic-gravity waves may be rapidly smoothed by the transfer mechanism of radiation between hotter and cooler regions. The present investigation of the radiative effects on internal gravity waves takes into account the parameterization of the radiative energy, employing the Newtonian cooling approximation. A linear analysis of the propagation of internal gravity waves is carried out in a model of the solar atmosphere which is taken to be homogeneous in the horizontal coordinates. Linear wave properties both with and without radiative cooling are summarized, and the variation with height of energy fluxes and of nonlinearities in the waves is discussed. Attention is given to the significance of the obtained results in terms of energy balance in the chromosphere and in relation to spectral line observations.
Document ID
19830034421
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mihalas, B. W.
(National Center for Atmospheric Research; Colorado, University; Joint Institute for Laboratory Astrophysics, Boulder, CO, United States)
Toomre, J.
(Colorado, University; Joint Institute for Laboratory Astrophysics, Boulder, CO, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Astrophysical Journal
Subject Category
Solar Physics
Accession Number
83A15639
Funding Number(s)
CONTRACT_GRANT: NAGW-91
CONTRACT_GRANT: F19628-77-C-0104
CONTRACT_GRANT: NSG-7511
Distribution Limits
Public
Copyright
Other

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