{"title":"土星磁层交流电场环形分布的电磁电子回旋波","authors":"Annex Edappattu Haridas, S. Kanwar, R. S. Pandey","doi":"10.5140/jass.2022.39.2.35","DOIUrl":null,"url":null,"abstract":"During their respective missions, the spacecraft Voyager and Cassini measured\n several Saturn magnetosphere parameters at different radial distances. As a result of\n information gathered throughout the journey, Voyager 1 discovered hot and cold electron\n distribution components, number density, and energy in the 6–18 Rs range. Observations\n made by Voyager of intensity fluctuations in the 20–30 keV range show electrons are\n situated in the resonance spectrum’s high energy tail. Plasma waves in the magnetosphere\n can be used to locate Saturn’s inner magnetosphere’s plasma clusters, which are\n controlled by Saturn’s spin. Electromagnetic electron cyclotron (EMEC) wave ring\n distribution function has been investigated. Kinetic and linear approaches have been\n used to study electromagnetic cyclotron (EMEC) wave propagation. EMEC waves’ stability\n can be assessed by analyzing the dispersion relation’s effect on the ring distribution\n function. The primary goal of this study is to determine the impact of the magnetosphere\n parameters which is observed by Cassini. The magnetosphere of Saturn has also been\n observed. When the plasma parameters are increased as the distribution index, the\n growth/damping rate increases until the magnetic field model affects the magnetic field\n at equator, as can be seen in the graphs. We discuss the outputs of our model in the\n context of measurements made in situ by the Cassini spacecraft.","PeriodicalId":44366,"journal":{"name":"Journal of Astronomy and Space Sciences","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electromagnetic Electron-Cyclotron Wave for Ring Distribution with Alternating\\n Current (AC) Electric Field in Saturn Magnetosphere\",\"authors\":\"Annex Edappattu Haridas, S. Kanwar, R. S. Pandey\",\"doi\":\"10.5140/jass.2022.39.2.35\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"During their respective missions, the spacecraft Voyager and Cassini measured\\n several Saturn magnetosphere parameters at different radial distances. As a result of\\n information gathered throughout the journey, Voyager 1 discovered hot and cold electron\\n distribution components, number density, and energy in the 6–18 Rs range. Observations\\n made by Voyager of intensity fluctuations in the 20–30 keV range show electrons are\\n situated in the resonance spectrum’s high energy tail. Plasma waves in the magnetosphere\\n can be used to locate Saturn’s inner magnetosphere’s plasma clusters, which are\\n controlled by Saturn’s spin. Electromagnetic electron cyclotron (EMEC) wave ring\\n distribution function has been investigated. Kinetic and linear approaches have been\\n used to study electromagnetic cyclotron (EMEC) wave propagation. EMEC waves’ stability\\n can be assessed by analyzing the dispersion relation’s effect on the ring distribution\\n function. The primary goal of this study is to determine the impact of the magnetosphere\\n parameters which is observed by Cassini. The magnetosphere of Saturn has also been\\n observed. When the plasma parameters are increased as the distribution index, the\\n growth/damping rate increases until the magnetic field model affects the magnetic field\\n at equator, as can be seen in the graphs. We discuss the outputs of our model in the\\n context of measurements made in situ by the Cassini spacecraft.\",\"PeriodicalId\":44366,\"journal\":{\"name\":\"Journal of Astronomy and Space Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2022-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Astronomy and Space Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5140/jass.2022.39.2.35\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Astronomy and Space Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5140/jass.2022.39.2.35","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
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.
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.