DOI: 10.1002/2016GL070787
论文题名: Mapping of hydrocarbons and H3 + emissions at Jupiter's north pole using Galileo/NIMS data
作者: Altieri F. ; Dinelli B.M. ; Migliorini A. ; Moriconi M.L. ; Sindoni G. ; Adriani A. ; Mura A. ; Fabiano F.
刊名: Geophysical Research Letters
ISSN: 0094-8368
EISSN: 1944-8099
出版年: 2016
卷: 43, 期: 22 起始页码: 11558
结束页码: 11566
语种: 英语
英文关键词: atmosphere
; Aurorae
; composition
; imaging spectroscopy
; Jupiter
; remote sensing
Scopus关键词: Chemical analysis
; Earth atmosphere
; Hydrocarbons
; Mapping
; Remote sensing
; Aurorae
; Auroral particle precipitations
; Imaging spectroscopy
; Infrared mapping spectrometer
; Jupiters
; Nonthermal excitation
; Observation planning
; Temperature estimation
; Spectrometers
英文摘要: In this paper we report the mapping of H3 +, C2H2, and CH4 as derived by an unexploited Galileo/Near-Infrared Mapping Spectrometer (NIMS) data set. As previously observed, hydrocarbons emissions appear to be located in the internal part of the auroral main oval, where CH4 3 µm vibrational band intensity ratios suggest that nonthermal excitation mechanisms, such as auroral particle precipitation and/or Joule heating, are responsible for the observed emissions. Temperature estimation are in good agreement for the CH4-emitting region on the hot spot, while the values obtained for H3 + are lower in comparison with Cassini/visual and infrared mapping spectrometer and ground-based data. C2H2 emission overlaps the CH4 one only at higher latitudes >75°N, indicating that different energetic particles are at work inside the main oval polar ward. CH4 is also found on the northern section of the main oval (135°< longitude <190°, 60°< latitude <90°N). The present investigation results have implications on the Juno/Jovian InfraRed Auroral Mapper observation planning as well as on the codes that will be used to retrieve temperatures and densities of all the emitting species involved in the Jupiter auroral processes. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85003946065&doi=10.1002%2f2016GL070787&partnerID=40&md5=dfb518b3eaf4c8ffa8f8556d3f80bb2a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9331
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: INAF/Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy
Recommended Citation:
Altieri F.,Dinelli B.M.,Migliorini A.,et al. Mapping of hydrocarbons and H3 + emissions at Jupiter's north pole using Galileo/NIMS data[J]. Geophysical Research Letters,2016-01-01,43(22).