Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091697 |
Evidence for Non‐adiabatic Oxygen Energization in the near‐Earth Magnetotail from MMS | |
S. T. Bingham; R. Nikoukar; I. J. Cohen; B. H. Mauk; D. L. Turner; D. G. Mitchell; J. L. Burch; R. G. Gomez; S. A. Fuselier; R. B. Torbert | |
2020-12-28 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | We present Magnetospheric Multiscale (MMS) mission observations of substorm‐related ion injections at magnetotail positions between ∼7.5–8.5 RE. Energization of suprathermal ions (50–1000 keV) is strongly species dependent, with oxygen reaching significantly higher peak energies than protons. Using a previously established correlation technique we confirm that the highest energy (> 400 keV) oxygen ions are multiply‐charged of solar wind origin, enabling them to reach high energies in rough proportion to their charge states. Significantly, we conclude that oxygen ions between 130–330 keV are singly charged, and that they sometimes achieve higher energizations relative to protons; that is, higher than expected based on their charge states. We conclude that non‐adiabatic processes can boost the energies of the oxygen ions. The technique does not depend on “before‐injection” and “after‐injection” spectral comparisons, and therefore likely represents the most definitive test yet of non‐adiabaticity. |
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/311470 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. T. Bingham,R. Nikoukar,I. J. Cohen,等. Evidence for Non‐adiabatic Oxygen Energization in the near‐Earth Magnetotail from MMS[J]. Geophysical Research Letters,2020. |
APA | S. T. Bingham.,R. Nikoukar.,I. J. Cohen.,B. H. Mauk.,D. L. Turner.,...&R. B. Torbert.(2020).Evidence for Non‐adiabatic Oxygen Energization in the near‐Earth Magnetotail from MMS.Geophysical Research Letters. |
MLA | S. T. Bingham,et al."Evidence for Non‐adiabatic Oxygen Energization in the near‐Earth Magnetotail from MMS".Geophysical Research Letters (2020). |
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