Acceleration of electrons and solar flares due to quasi-static electric field

✍ Scribed by Tatsuo Takakura

• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 705 KB
• Volume: 19
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00148833

✦ Synopsis

The storage of flare energy, efficient acceleration of electrons and the trigger of the flares are suggested to be attributed to a quasi-static electric field caused by a gas motion near the photosphere without satisfying the frozen condition. The primary cause of the onset of flares would be the acceleration of electrons due to the electric field above a critical strength. The electrons excite plasma waves which make the conductivity lower by several orders in the lower corona, so that the electromagnetic energy I2L stored before the onset of the flare would be rapidly converted into the heat due to the ohmic loss in about 10 s.

where a is the conductivity along the magnetic field, ah~ is the electron angular gyro-