Disturbances caused by horizontal tidal forces in the equatorial plane of the solar corona
|1Tokiy, VV, 2Efimenko, VM, 1Tokiy, NV |
1A.A.Galkin Donetsk Physics-Technical Institute of the National Academy of Sciences of Ukraine, Donetsk, Ukraine
2Astronomical Observatory of the Taras Shevchenko National University of Kyiv,Kyiv, Ukraine
|Kosm. nauka tehnol. 2007, 13 ;(Supplement1):105-108|
|Publication Language: Russian|
The influence of the gravitational disturbance caused by motions of planets and the Sun's rotation, on the changes in the components of the general magnetic field of the solar corona within the framework of the Weber and Davis model is considered. The steady-state model of the solar-wind flow in the equatorial plane including the effects of pressure gradients, gravitation, and magnetic forces is used for both the radial and azimuthal motions. The viscocity was taken to be zero and the electrical conductivity was put to be infinite. With allowance made for gravitational and magnetic fields the periodic semidiurnal decisions for the disturbances caused by the planets are investigated. We deduced analytical relationships between indignations for radial and azimuthal components of the magnetic field in the equatorial plane of the solar corona and time, distance to the Sun's centre, heliographic longitude, solar wind speed and some characteristics of a planet.
|Keywords: gravitational disturbance, magnetic field, motions of planets, Sun|
1. Tokiy V. V., Efimenko V. M., Tokiy N. V. The electric fields caused by horizontal tidal forces in plasma layers of atmospheres of planets and stars. Izv. Krym. Astrofiz. Obs., 103 (4), 51—58 (2007) [in Russian].
2. Hundhausen A. J. Coronal Expansion and Solar Wind, 302 p. (Mir, Moscow, 1976) [in Russian].
3. Takahashi Kozo. On the relation between the solar activity cycle and the solar tidal force induced by the planets. Solar Phys., 3, 598—602 (1968).
4. Trellis M. Michel. Marees solaires d'origine planetaire. C. R. Acad. Sc. Paris, 262, B221— B224 (1966).
5. Weber E. J., Davis L. The angular momentum of the solar wind. Astrophys. J., 148, 217—227 (1967).