Solar atmospheric dynamics

Details Solar atmospheric dynamics Solar atmospheric dynamics

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977bran.rept.....s&link_type=abstract

Final Report, 19 Sep. 1974 - 30 Sep. 1976 Brandeis Univ., Waltham, MA. Dept. of Physics.

Physics

Chromosphere, Gravitation, Heating, Computer Programs, Equations Of Motion, Ultraviolet Radiation

Scientific paper

This study seeks to calculate the generation and propagation of Magneto-Acoustic Gravity (M.A.G.) waves in the solar atmosphere and their effect on the heating of the chromosphere and corona. A computer program has been written, which is capable of integrating the equations of motion of such waves, which are inherently three-dimensional. To simplify the equations, without seriously distorting the nature of the motions, we impose a fixed horizontal modal structure consisting of 6 waves propagating horizontally in a hexagonal pattern. These equations need to be integrated in time and only one spatial direction - the vertical. The program is currently being tested for the simpler case of non-vertically propagating acoustic-gravity waves. We have also analyzed Skylab UV data for evidence of acoustic pulses in the transition region and calculated the steady state structure of the solar wind flow along a magnetic flux tube that diverges more rapidly than vertically.

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