Excitation of whistler waves driven by an electron temperature anisotropy

✍ Scribed by Jie Zhao; Jun-Ichi Sakai; Ken-Ichi Nishikawa

• Book ID: 104642094
• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 681 KB
• Volume: 168
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00148060

✦ Synopsis

A 3-D particle simulalion of excilalion of whistler waves driven by an electron temperattlre anisotropy (7~ > '1'::) is presented. Results show that whisller waves can have appreciable growth driven by the anisotropy. The maximum imensity of the excited whistler waves increases as a quadralic flmction of file anisotropy. Due to Ihe presence of a Ihreshold, one needs a relatively large electron temperature anisotropy above threshold Io generate large-amplitude whistler waves. The average amplitude of turbulence in the context of whistler waves is up to as large as about I% of the ambient magnetic field when T__/T.., I = 8. The total energy density of the whistler turbulence is adequate for production of relativistic electrons in solar flares through stochaslic acceleral.ion.