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DOI | 10.1029/2021GL092376 |
Kinetic interaction of cold and hot protons with an oblique EMIC wave near the dayside reconnecting magnetopause | |
S. Toledo‐; Redondo; J. H. Lee; S. K. Vines; D. L. Turner; R. C. Allen; M. André; S. A. Boardsen; J. L. Burch; R. E. Denton; H. S. Fu; S. A. Fuselier; D. J. Gershman; B. Giles; D. B. Graham; N. Kitamura; Yu. V. Khotyaintsev; B. Lavraud; O. Le Contel; W. Y. Li; T. E. Moore; E. A. Navarro; J. Portí; A. Salinas; A. Vinas | |
2021-04-18 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | We report observations of the ion dynamics inside an Alfvén branch wave that propagates near the reconnecting dayside magnetopause. The measured frequency, wave normal angle and polarization are consistent with the predictions of a dispersion solver. The magnetospheric plasma contains hot protons (keV), cold protons (eV), plus some heavy ions. While the cold protons follow the magnetic field fluctuations and remain frozen‐in, the hot protons are at the limit of magnetization. The cold protons exchange energy back and forth, adiabatically, with the wave fields. The cold proton velocity fluctuations contribute to balance the Hall term fluctuations in Ohm’s law, and the wave E field has small ellipticity and right‐handed polarization. The dispersion solver indicates that increasing the cold proton density facilitates propagation and amplification of these waves at oblique angles, as for the observed wave. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/322844 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. Toledo‐,Redondo,J. H. Lee,et al. Kinetic interaction of cold and hot protons with an oblique EMIC wave near the dayside reconnecting magnetopause[J]. Geophysical Research Letters,2021. |
APA | S. Toledo‐.,Redondo.,J. H. Lee.,S. K. Vines.,D. L. Turner.,...&A. Vinas.(2021).Kinetic interaction of cold and hot protons with an oblique EMIC wave near the dayside reconnecting magnetopause.Geophysical Research Letters. |
MLA | S. Toledo‐,et al."Kinetic interaction of cold and hot protons with an oblique EMIC wave near the dayside reconnecting magnetopause".Geophysical Research Letters (2021). |
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