Accession Number : AD0610301

Title :   ON THE THEORY OF FORMATION OF SHOCK WAVES IN THE CHROMOSPHERE AND IN THE CORONA,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kaplan,S. A. ; Ostrovskii,L. A.

Report Date : 06 JAN 1965

Pagination or Media Count : 10

Abstract : A hypothesis, the so-called 'acoustic theory', explaining the heating of the chromosphere and corona is examined. According to this hypothesis the mechanism of heating consists in the following: audio or magneto waves, originating in the sub-photospheric layers during convec tive movements, propagate upwards and at a certain altitude transform into shock waves, which lead to a sharp dissociation of same (dissipation of same). The thermal energy liberated there heats the gas of the chromosphere and corona to a high temperature, because the gas density is low. To analyze this theory it is necessary to take into consideration the conditions of transformation of audio waves into shock waves in a heterogeneous atmosphere, situated in a gravitational field, which is connected with definite mathematical difficulties. A method developed in recent years and applicable to the given problem is described.

Descriptors :   (*SHOCK WAVES, SOLAR ATMOSPHERE), (*SOLAR ATMOSPHERE, SHOCK WAVES), GASES, HEATING, ACOUSTICS, ENERGY CONVERSION, ASTROPHYSICS, USSR

Distribution Statement : APPROVED FOR PUBLIC RELEASE