IGGCAS OpenIR  > 地球与行星物理院重点实验室
Statistics of Water-group Band Ion Cyclotron Waves in Saturn's Inner Magnetosphere Based on 13 yr of Cassini Measurements
Long, Minyi1; Cao, Xing1; Gu, Xudong1; Ni, Binbin1,2; Qu, Shaojie3; Ye, Shengyi4; Yao, Zhonghua5; Wu, Siyuan4; Xu, Yan5
2022-06-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume932Issue:1Pages:10
AbstractBased on Cassini observations from 2004 to 2016, we perform a comprehensive analysis of the statistical distribution of the occurrence rate, averaged amplitude, wave normal angle (WNA), ellipticity, and power spectral intensity of ion cyclotron waves in Saturn's inner magnetosphere. Our results show that ion cyclotron waves mainly occur between the orbits of Enceladus and Dione near the equatorial region (vertical bar lambda vertical bar < 20 degrees), with higher occurrence rates in the northern hemisphere than the southern hemisphere. The averaged wave amplitudes vary between 0.1 and 2 nT with a strong day-night asymmetry and a pronounced minimum at the equator. Saturnian ion cyclotron waves are predominantly left-handed polarized with small WNAs near the equator and become linearly polarized with larger WNAs at higher latitudes. The major wave power occurs frequently at frequencies of 0.5-1.2 f(w)+, where f(w)+ is the equatorial gyrofrequency of H2O+ ions, with the strongest intensity (>similar to 10 nT(2) Hz(-1)) at L similar to 6.5 statistically present in the midnight sector.
DOI10.3847/1538-4357/ac6bf0
Funding Organizationpre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS KeywordEMIC WAVES ; RELATIVISTIC ELECTRONS ; HYBRID SIMULATIONS ; PICKUP IONS ; SCATTERING ; ENCELADUS ; VAPOR ; GENERATION ; PLASMA ; PLUME
Language英语
Funding Projectpre-research projects on Civil Aerospace Technologies - China National Space Administration[D020303] ; pre-research projects on Civil Aerospace Technologies - China National Space Administration[D020104] ; pre-research projects on Civil Aerospace Technologies - China National Space Administration[D020308] ; NSFC[42025404] ; NSFC[42188101] ; NSFC[41904144] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; Fundamental Research Funds for the Central Universities[2042021kf1045] ; Fundamental Research Funds for the Central Universities[2042021kf1056] ; Fundamental Research Funds for the Central Universities[2042022kf1012]
Funding Organizationpre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; pre-research projects on Civil Aerospace Technologies - China National Space Administration ; NSFC ; NSFC ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000811485700001
PublisherIOP Publishing Ltd
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/106085
Collection地球与行星物理院重点实验室
Corresponding AuthorCao, Xing
Affiliation1.Wuhan Univ, Sch Elect Informat, Dept Space Phys, Wuhan, Peoples R China
2.CAS Ctr Excellence Comparat Planetol, Hefei, Peoples R China
3.Inst Spacecraft Syst Engn, Beijing, Peoples R China
4.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Long, Minyi,Cao, Xing,Gu, Xudong,et al. Statistics of Water-group Band Ion Cyclotron Waves in Saturn's Inner Magnetosphere Based on 13 yr of Cassini Measurements[J]. ASTROPHYSICAL JOURNAL,2022,932(1):10.
APA Long, Minyi.,Cao, Xing.,Gu, Xudong.,Ni, Binbin.,Qu, Shaojie.,...&Xu, Yan.(2022).Statistics of Water-group Band Ion Cyclotron Waves in Saturn's Inner Magnetosphere Based on 13 yr of Cassini Measurements.ASTROPHYSICAL JOURNAL,932(1),10.
MLA Long, Minyi,et al."Statistics of Water-group Band Ion Cyclotron Waves in Saturn's Inner Magnetosphere Based on 13 yr of Cassini Measurements".ASTROPHYSICAL JOURNAL 932.1(2022):10.
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