土星磁层交流电场环形分布的电磁电子回旋波

IF 0.6 Q4 ASTRONOMY & ASTROPHYSICS Journal of Astronomy and Space Sciences Pub Date : 2022-06-01 DOI:10.5140/jass.2022.39.2.35
Annex Edappattu Haridas, S. Kanwar, R. S. Pandey
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引用次数: 0

摘要

在各自的任务中,旅行者号和卡西尼号在不同的径向距离上测量了几个土星磁层参数。由于在整个旅程中收集的信息,旅行者1号发现了6-18 Rs范围内的冷热电子分布成分、数量密度和能量。旅行者号对20-30 keV范围内的强度波动的观测表明,电子位于共振光谱的高能尾部。磁层中的等离子体波可以用来定位土星内部磁层的等离子体星团,这些星团是由土星的自旋控制的。研究了电磁电子回旋加速器(EMEC)的波环分布函数。动力学和线性方法已被用于研究电磁回旋加速器(EMEC)的波传播。通过分析频散关系对环分布函数的影响,可以评价EMEC波的稳定性。这项研究的主要目标是确定卡西尼号观测到的磁层参数的影响。土星的磁层也被观测到了。当等离子体参数随分布指数增加时,增长/阻尼率增加,直到磁场模型影响赤道处的磁场,如图所示。我们在卡西尼号宇宙飞船现场测量的背景下讨论我们模型的输出。
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Electromagnetic Electron-Cyclotron Wave for Ring Distribution with Alternating Current (AC) Electric Field in Saturn Magnetosphere
During their respective missions, the spacecraft Voyager and Cassini measured several Saturn magnetosphere parameters at different radial distances. As a result of information gathered throughout the journey, Voyager 1 discovered hot and cold electron distribution components, number density, and energy in the 6–18 Rs range. Observations made by Voyager of intensity fluctuations in the 20–30 keV range show electrons are situated in the resonance spectrum’s high energy tail. Plasma waves in the magnetosphere can be used to locate Saturn’s inner magnetosphere’s plasma clusters, which are controlled by Saturn’s spin. Electromagnetic electron cyclotron (EMEC) wave ring distribution function has been investigated. Kinetic and linear approaches have been used to study electromagnetic cyclotron (EMEC) wave propagation. EMEC waves’ stability can be assessed by analyzing the dispersion relation’s effect on the ring distribution function. The primary goal of this study is to determine the impact of the magnetosphere parameters which is observed by Cassini. The magnetosphere of Saturn has also been observed. When the plasma parameters are increased as the distribution index, the growth/damping rate increases until the magnetic field model affects the magnetic field at equator, as can be seen in the graphs. We discuss the outputs of our model in the context of measurements made in situ by the Cassini spacecraft.
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来源期刊
Journal of Astronomy and Space Sciences
Journal of Astronomy and Space Sciences ASTRONOMY & ASTROPHYSICS-
CiteScore
1.30
自引率
20.00%
发文量
0
审稿时长
12 weeks
期刊介绍: JASS aims for the promotion of global awareness and understanding of space science and related applications. Unlike other journals that focus either on space science or on space technologies, it intends to bridge the two communities of space science and technologies, by providing opportunities to exchange ideas and viewpoints in a single journal. Topics suitable for publication in JASS include researches in the following fields: space astronomy, solar physics, magnetospheric and ionospheric physics, cosmic ray, space weather, and planetary sciences; space instrumentation, satellite dynamics, geodesy, spacecraft control, and spacecraft navigation. However, the topics covered by JASS are not restricted to those mentioned above as the journal also encourages submission of research results in all other branches related to space science and technologies. Even though JASS was established on the heritage and achievements of the Korean space science community, it is now open to the worldwide community, while maintaining a high standard as a leading international journal. Hence, it solicits papers from the international community with a vision of global collaboration in the fields of space science and technologies.
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