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Chromospheric heatingThe solar chromosphere is identified with the atmosphere inside magnetic flux tubes. Between the temperature minimum and the 7000 K level, the chromosphere in the bright points of the quiet sun is heated by large-amplitude, long-period, compressive waves with periods mainly between 2 and 4 minutes. These waves do not observe the cutoff condition according to which acoustic waves with periods longer than 3 minutes do not propagate vertically in the upper solar photosphere. It is concluded that the long-period waves probably supply all the energy required for the heating of the bright points in the quiet solar chromosphere.
Document ID
19900026034
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kalkofen, Wolfgang
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 14, 2013
Publication Date
November 1, 1989
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 346
ISSN: 0004-637X
Subject Category
Solar Physics
Accession Number
90A13089
Funding Number(s)
CONTRACT_GRANT: NAGW-1568
Distribution Limits
Public
Copyright
Other

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