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Prog. Theor. Phys. Vol. 41 No. 2 (1969) pp. 367-381
Propagation of Shock Waves in Inhomogeneous Gases. VI
— Oblique Hydromagnetic Shock Propagation
—
Hatuo Yamazaki,
Yoshiaki Hashimoto* and
Yôrô Ôno**
Department of Nuclear Engineering, Hokkaido University, Sapporo
*Department of Physics, Hirosaki University, Hirosaki
**Department of Physics, Hokkaido University, Sapporo
(Received August 31, 1968)
Abstract:
The propagation of a hydromagnetic fast shock in a gravitational atmosphere permeated by a uniform magnetic field is studied by means of generalized Chisnell's method. It is shown that the fast shock propagating upwards always refracts away from the vertical irrespective of the direction of the magnetic field and the degree of refraction is higher when the ratio of the sound velocity to the Alfvén velocity along the magnetic field is smaller than unity. It is also shown that slow waves travelling upwards and downwards are generated in the fast-shock propagation through the atmosphere of declining density. The relation between these results and the heating of the solar corona is discussed.
URL :
http://ptp.ipap.jp/link?PTP/41/367/
DOI : 10.1143/PTP.41.367
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