This is the largest geomagnetic fluctuation occurring worldwide, lasting 1-2 days. It often occurs 2-3 days after a solar flare. It occurs when the magnetosphere is enveloped in a high-speed plasma flow released into interplanetary space by a solar flare. Some magnetic storms show a recurrence with a solar rotation period of 27 days. These occur in connection with high-speed flows in the solar wind. When a flare occurs, the plasma in the flare region rapidly accelerates and expands, releasing a high-speed plasma flow accompanied by a shock wave at the front. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
地磁気変動のうち汎世界的に起こる最も大きな変動で,継続時間1~2日の現象。太陽フレア(フレア)の発生から2~3日後に起こることが多い。フレアに伴って惑星間空間に放出された高速プラズマ流に磁気圏が包まれると起こる現象である。太陽の自転周期27日の再帰性を示す磁気あらしもある。これらは太陽風中の高速流に関連して生ずる。 フレアが発生すると,フレア領域のプラズマが急速に加速,膨張するため,前面に衝撃波を伴った高速プラズマ流が放出される。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
...The DI created in the same way for all 30 indi...
...In the Edo period, a new trend arose of tellin...
…The diary of the Gozan Zen monk Gido Shushin (pe...
...At that time, three distinctive schools of poe...
A particularly bright meteor. Its name comes from...
Latitude in galactic coordinates, measured from ze...
Chemical formula: NaH. Gray crystalline powder. Cu...
This is a Furyu-style drum dance. It is handed do...
…a cultural movement widespread among the peoples...
…It is a seaweed of the red algae family Gelidiac...
It is a private institution. It was founded in 18...
…A.F. Buddington (1959) argued that there is a cl...
Around 581 to 644 The second Islamic caliph (reign...
Born: June 4, 1635 in Paris Died November 26, 1688...
One of the five major genres of Chinese music (fol...