PMO OpenIR
Statistical Study of Low-Frequency Electromagnetic Cyclotron Waves in the Solar Wind at 1 AU
Zhao, G. Q.1,2; Feng, H. Q.1; Wu, D. J.3; Liu, Q.1; Zhao, Y.1; Zhao, A.1; Huang, J.2
2018-03-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN2169-9380
Volume123Issue:3Pages:1715-1730
Abstract

Electromagnetic cyclotron waves (ECWs) near the proton cyclotron frequency are common wave activities in the solar wind and have attracted much attention in recent years. This paper investigates 82,809 ECWs based on magnetic field data from the Solar Terrestrial Relations Observatory-A mission between 2007 and 2013. Results show that ECWs may last for just a few seconds or incessantly for several tens of minutes. The time fraction of ECW storms among all solar wind is about 0.9%; the storms are obtained with the duration threshold of 10 min, amplitude criterion of 0.032 nT, and time separation limit of 3 min for combination of intermittent ECWs. Most of ECWs have their amplitudes less than 1 nT, while some ECWs have large amplitudes comparable to the ambient magnetic field. The distributions of the durations and amplitudes of these ECWs are characterized by power law spectra, respectively, with spectrum indexes around 4. Statistically, there seems to be a tendency that ECWs with a longer duration will have a larger amplitude. Observed ECW properties are time dependent, and the median frequency of left-hand ECWs can be lower than that of right-hand ECWs in some months in the spacecraft frame. The percentage of left-hand ECWs varies in a large range with respect to months; it is much low (26%) in a month, though it frequently exceeds 50% in other months. Characteristics of ECWs with concurrent polarizations are also researched. The present study should be of importance for a more complete picture of ECWs in the solar wind.

DOI10.1002/2017JA024979
WOS KeywordWHISTLER-MODE WAVES ; INTERPLANETARY SHOCKS ; PLASMA INSTABILITIES ; STEREO ; CORONA ; MAGNETOSPHERE ; ACCELERATION ; GENERATION ; MISSION ; ENERGY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000430125300002
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22467
Collection中国科学院紫金山天文台
Corresponding AuthorFeng, H. Q.
Affiliation1.Luoyang Normal Univ, Inst Space Phys, Luoyang, Peoples R China
2.Natl Astron Observ, CAS Key Lab Solar Act, Beijing, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhao, G. Q.,Feng, H. Q.,Wu, D. J.,et al. Statistical Study of Low-Frequency Electromagnetic Cyclotron Waves in the Solar Wind at 1 AU[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2018,123(3):1715-1730.
APA Zhao, G. Q..,Feng, H. Q..,Wu, D. J..,Liu, Q..,Zhao, Y..,...&Huang, J..(2018).Statistical Study of Low-Frequency Electromagnetic Cyclotron Waves in the Solar Wind at 1 AU.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,123(3),1715-1730.
MLA Zhao, G. Q.,et al."Statistical Study of Low-Frequency Electromagnetic Cyclotron Waves in the Solar Wind at 1 AU".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123.3(2018):1715-1730.
Files in This Item:
File Name/Size DocType Version Access License
2018-IR-176.pdf(3903KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao, G. Q.]'s Articles
[Feng, H. Q.]'s Articles
[Wu, D. J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao, G. Q.]'s Articles
[Feng, H. Q.]'s Articles
[Wu, D. J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao, G. Q.]'s Articles
[Feng, H. Q.]'s Articles
[Wu, D. J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2018-IR-176.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.