Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams
The characteristics of whistler-mode waves excited by temperature anisotropic electrons, whose velocity distribution is a combination of bi-Maxwellian distribution and beam-like shapes, are investigated by both linear theory analysis and particle-in-cell simulation. A frequency gap is formed between...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2020-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0026220 |
| _version_ | 1830271985808048128 |
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| author | Huayue Chen Konrad Sauer Quanming Lu Xinliang Gao Shaojie Wang |
| author_facet | Huayue Chen Konrad Sauer Quanming Lu Xinliang Gao Shaojie Wang |
| author_sort | Huayue Chen |
| collection | DOAJ |
| description | The characteristics of whistler-mode waves excited by temperature anisotropic electrons, whose velocity distribution is a combination of bi-Maxwellian distribution and beam-like shapes, are investigated by both linear theory analysis and particle-in-cell simulation. A frequency gap is formed between two peaks, which is caused by the mode splitting of beam-like electrons. We have further investigated the influences of different parameters and found that the position of beam-like shape is the key parameter in determining the frequency of power gap. Moreover, the beam-like component on one direction will lead to the gap in the spectra of waves propagating in the opposite direction. Our study can shed light on the effects of beam-like electrons on the spectra of whistler-mode waves. |
| first_indexed | 2024-12-18T23:16:25Z |
| format | Article |
| id | doaj.art-40c53c5ae234490abac015b1a62049df |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-18T23:16:25Z |
| publishDate | 2020-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-40c53c5ae234490abac015b1a62049df2022-12-21T20:48:10ZengAIP Publishing LLCAIP Advances2158-32262020-12-011012125010125010-810.1063/5.0026220Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beamsHuayue Chen0Konrad Sauer1Quanming Lu2Xinliang Gao3Shaojie Wang4CAS Key Laboratory of Geoscience Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, ChinaMax-Planck-Institute for Solar System Research, Göttingen 37077, GermanyCAS Key Laboratory of Geoscience Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, ChinaCAS Key Laboratory of Geoscience Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, ChinaCAS Key Laboratory of Geoscience Environment, Department of Modern Physics, University of Science and Technology of China, Hefei 230026, ChinaThe characteristics of whistler-mode waves excited by temperature anisotropic electrons, whose velocity distribution is a combination of bi-Maxwellian distribution and beam-like shapes, are investigated by both linear theory analysis and particle-in-cell simulation. A frequency gap is formed between two peaks, which is caused by the mode splitting of beam-like electrons. We have further investigated the influences of different parameters and found that the position of beam-like shape is the key parameter in determining the frequency of power gap. Moreover, the beam-like component on one direction will lead to the gap in the spectra of waves propagating in the opposite direction. Our study can shed light on the effects of beam-like electrons on the spectra of whistler-mode waves.http://dx.doi.org/10.1063/5.0026220 |
| spellingShingle | Huayue Chen Konrad Sauer Quanming Lu Xinliang Gao Shaojie Wang Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams AIP Advances |
| title | Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams |
| title_full | Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams |
| title_fullStr | Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams |
| title_full_unstemmed | Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams |
| title_short | Two-band whistler-mode waves excited by an electron bi-Maxwellian distribution plus parallel beams |
| title_sort | two band whistler mode waves excited by an electron bi maxwellian distribution plus parallel beams |
| url | http://dx.doi.org/10.1063/5.0026220 |
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