globalchange  > 气候减缓与适应
DOI: 10.1029/2018JA025442
Scopus记录号: 2-s2.0-85050290958
论文题名:
Statistical Study of the Energetic Proton Environment at Titan's Orbit From the Cassini Spacecraft
作者: Regoli L.H.; Roussos E.; Dialynas K.; Luhmann J.G.; Sergis N.; Jia X.; Román D.; Azari A.; Krupp N.; Jones G.H.; Coates A.J.; Rae I.J.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:6
起始页码: 4820
结束页码: 4834
语种: 英语
英文关键词: Cassini ; empirical model ; energetic ions ; Kappa distributions ; MIMI ; Titan
英文摘要: A statistical study of the energetic proton environment at Titan's orbit as captured by the MIMI/LEMMS and MIMI/CHEMS instruments is performed. The data analyzed cover all the dedicated flybys of Titan by Cassini as well as the orbit crossings that happen far from the moon. The energetic environment is found to be highly variable on timescales comparable to that of the duration of a flyby. Analysis of H+ ion fluxes reveals a weak asymmetry in Saturn local time with the highest fluxes occurring in the premidnight sector of the magnetosphere. A correlation between the energetic ion fluxes and the location of Cassini in the magnetosphere with respect to the center of the current sheet can be observed. Finally, an empirical model of proton spectra for energies above 20 keV is derived based on fits to Kappa distribution functions. This model can be used to better understand the interaction of Titan with the magnetosphere and the energy deposition by energetic particles below the main ionospheric peak. ©2018. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113786
Appears in Collections:气候减缓与适应

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作者单位: Max Planck Institute for Solar System Research, Göttingen, Germany; Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; Mullard Space Science Laboratory, University College London, Holmbury St. Mary, United Kingdom; Centre for Planetary Science at UCL/Birkbeck, London, United Kingdom; Office for Space Research and Technology, Academy of Athens, Athens, Greece; Space Sciences Laboratory, University of California, Berkeley, CA, United States

Recommended Citation:
Regoli L.H.,Roussos E.,Dialynas K.,et al. Statistical Study of the Energetic Proton Environment at Titan's Orbit From the Cassini Spacecraft[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(6)
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