| タイトル | The spontaneous concentration of magnetic field in the photosphere of the sun |
| 著者（英） | Parker, E. N. |
| 著者所属（英） | Chicago Univ. |
| 発行日 | 1981-01-01 |
| 言語 | eng |
| 内容記述 | The basic physics of magnetic flux tubes in the solar photosphere is reviewed, with areas still open to conjecture pointed out. The question of the concentration of individual small flux tubes to levels of 1-2 kilogauss, when the average solar surface magnetic field is on the order of 10 gauss, by processes of twisting and the formation of flux ropes made up of tubes wound around each other is considered together with the effects of turbulence on the flux tube. Mechanisms for tube compression by the evacuation of the gas contained within a flux tube are then examined, and the possibility of field concentration through the cooling of the gas within the tube in a superadiabatic process is suggested. Attention is then given to possible mechanisms serving to maintain the concentration of flux tubes far below the surface of the sun which gives rise to sunspots and pores as the flux tree emerges through the surface. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 82A34778 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/410260 |
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