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3‐D hydrodynamic simulations of the solar chromosphere
Author(s) -
Wedemeyer S.,
Freytag B.,
Steffen M.,
Ludwig H.G.,
Holweger H.
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.200310150
Subject(s) - chromosphere , physics , convection zone , convection , mechanics , astrophysics , computational physics , classical mechanics , astronomy , spectral line
We present first results of three‐dimensional numerical simulations of the non‐magnetic solar chromosphere, computed with the radiation hydrodynamics code CO 5 BOLD. Acoustic waves which are excited at the top of the convection zone propagate upwards into the chromosphere where the waves steepen into shocks. The interaction of the waves leads to the formation of complex structures which evolve on short time scales. Consequently, the model chromosphere is highly dynamical, inhomogeneous, and thermally bifurcated.