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High‐frequency waves and granulation
Author(s) -
Zhugzhda Y.D.
Publication year - 2003
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200310148
Subject(s) - physics , photosphere , granulation , astrophysics , mechanics , classical mechanics , astronomy , spectral line
The theory of periodical shear flow is applied for the exploration of the effect of solar granulation on highfrequency waves in the solar photosphere. It is shown that upgoing and downgoing waves are trapped in intergranular spaces and granules, respectively. Upgoing waves in fast downflows are unstable. The theory is in a good agreement with observations.