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Low-Frequency Waves in Cold Three-Component Plasmas
  • ISSN号:1009-0630
  • 期刊名称:《等离子体科学与技术:英文版》
  • 时间:0
  • 分类:O534[理学—等离子体物理;理学—物理] P631.4[天文地球—地质矿产勘探;天文地球—地质学]
  • 作者机构:[1]Institute of Space Weather, School of Math & Statistics, Nanjing University of Information Science & Technology, Nanjing 210044, China, [2]Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
  • 相关基金:supported by National Natural Science Foundation of China (Nos. 11303099, 41531071 and 41574158), and the Youth Innovation Promotion Association CAS
中文摘要:

The dispersion relation and electromagnetic polarization of the plasma waves are comprehensively studied in cold electron,proton,and heavy charged particle plasmas.Three modes are classified as the fast,intermediate,and slow mode waves according to different phase velocities.When plasmas contain positively-charged particles,the fast and intermediate modes can interact at the small propagating angles,whereas the two modes are separate at the large propagating angles.The near-parallel intermediate and slow waves experience the linear polarization,circular polarization,and linear polarization again,with the increasing wave number.The wave number regime corresponding to the above circular polarization shrinks as the propagating angle increases.Moreover,the fast and intermediate modes cause the reverse change of the electromagnetic polarization at the special wave number.While the heavy particles carry the negative charges,the dispersion relations of the fast and intermediate modes are always separate,being independent of the propagating angles.Furthermore,this study gives new expressions of the three resonance frequencies corresponding to the highly-oblique propagation waves in the general three-component plasmas,and shows the dependence of the resonance frequencies on the propagating angle,the concentration of the heavy particle,and the mass ratio among different kinds of particles.

英文摘要:

The dispersion relation and electromagnetic polarization of the plasma waves are comprehensively studied in cold electron, proton, and heavy charged particle plasmas. Three modes are classified as the fast, intermediate, and slow mode waves according to different phase velocities. When plasmas contain positively-charged particles, the fast and intermediate modes can interact at the small propagating angles, whereas the two modes are separate at the large propagating angles. The near-parallel intermediate and slow waves experience the linear polarization, circular polarization, and linear polarization again, with the increasing wave number. The wave number regime corresponding to the above circular polarization shrinks as the propagating angle increases. Moreover, the fast and intermediate modes cause the reverse change of the electromagnetic polarization at the special wave number. While the heavy particles carry the negative charges, the dispersion relations of the fast and intermediate modes are always separate, being independent of the propagating angles. Furthermore, this study gives new expressions of the three resonance frequencies corresponding to the highly-oblique propagation waves in the general three-component plasmas, and shows the dependence of the resonance frequencies on the propagating angle, the concentration of the heavy particle, and the mass ratio among different kinds of particles.

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期刊信息
  • 《等离子体科学与技术:英文版》
  • 主管单位:中国科学院 中国科协
  • 主办单位:中国科学院等离子体物理研究所 中国力学学会
  • 主编:万元熙、谢纪康
  • 地址:合肥市1126信箱
  • 邮编:230031
  • 邮箱:pst@ipp.ac.cn
  • 电话:0551-5591617 5591388
  • 国际标准刊号:ISSN:1009-0630
  • 国内统一刊号:ISSN:34-1187/TL
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,美国科学引文索引(扩展库),英国科学文摘数据库
  • 被引量:89