| Title | Observations of the First Harmonic of Saturn Kilometric Radiation During Cassini's Grand Finale |
| Author | |
| Corresponding Author | Zarka, Philippe; Ye, Shengyi |
| Publication Years | 2022-09-01
|
| DOI | |
| Source Title | |
| ISSN | 2169-9380
|
| EISSN | 2169-9402
|
| Volume | 127Issue:9 |
| Abstract | Clear first harmonic emissions of Saturn Kilometric Radiation are discovered during the Cassini Grand Finale orbits. Both ordinary (O) and extraordinary (X) mode fundamental emissions accompanied by X mode harmonics are observed. Analysis shows that the frequency ratio between the fundamental and harmonic emissions is 2.01 +/- 0.08, and the harmonic emissions display weaker intensities than the fundamental, by 30-40 dB for the X-X (fundamental-harmonic) type harmonic and 10-30 dB for the O-X type harmonic. The intensity relations between the two types of harmonics, that is, O-X and X-X show different patterns that we attribute to different conditions of emission at the source. Direction-finding results shows that the fundamental and harmonic emissions are plausibly generated in the same source region. In agreement with previous studies at Earth, the generation of the two types of harmonics can be attributed to the cyclotron maser instability operating with different plasma density and electron energy distributions in the source region. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB41000000]
; FWF-GACR international project, Austria[I 4559-N/20-06802]
|
| WOS Research Area | Astronomy & Astrophysics
|
| WOS Subject | Astronomy & Astrophysics
|
| WOS Accession No | WOS:000850891100001
|
| Publisher | |
| ESI Research Field | SPACE SCIENCE
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:1
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/395908 |
| Department | Department of Earth and Space Sciences |
| Affiliation | 1.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China 2.Univ Paris Cite, LESIA, Observ Paris, CNRS,Univ PSL,Sorbonne Univ, Meudon, France 3.Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France 4.Czech Acad Sci, Dept Space Phys, Inst Atmospher Phys, Prague, Czech Republic 5.Austrian Acad Sci, Space Res Inst, Graz, Austria 6.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA |
| First Author Affilication | Department of Earth and Space Sciences |
| Corresponding Author Affilication | Department of Earth and Space Sciences |
| First Author's First Affilication | Department of Earth and Space Sciences |
| Recommended Citation GB/T 7714 |
Wu, Siyuan,Zarka, Philippe,Lamy, Laurent,et al. Observations of the First Harmonic of Saturn Kilometric Radiation During Cassini's Grand Finale[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2022,127(9).
|
| APA |
Wu, Siyuan.,Zarka, Philippe.,Lamy, Laurent.,Taubenschuss, Ulrich.,Cecconi, Baptiste.,...&Francez, Theo.(2022).Observations of the First Harmonic of Saturn Kilometric Radiation During Cassini's Grand Finale.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,127(9).
|
| MLA |
Wu, Siyuan,et al."Observations of the First Harmonic of Saturn Kilometric Radiation During Cassini's Grand Finale".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 127.9(2022).
|
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
; 
Edit Comment