DOI: 10.1002/2015GL064150
论文题名: Effects of the passage of Comet C/2013 A1 (Siding Spring) observed by the Shallow Radar (SHARAD) on Mars Reconnaissance Orbiter
作者: Restano M. ; Plaut J.J. ; Campbell B.A. ; Gim Y. ; Nunes D. ; Bernardini F. ; Egan A. ; Seu R. ; Phillips R.J.
刊名: Geophysical Research Letters
ISSN: 0094-8649
EISSN: 1944-8380
出版年: 2015
卷: 42, 期: 12 起始页码: 4663
结束页码: 4669
语种: 英语
英文关键词: Comet Siding Spring
; SHARAD
Scopus关键词: Ionosphere
; Ions
; Martian surface analysis
; Radar
; Cometary dusts
; Ion layers
; Mars Reconnaissance Orbiters
; Martian ionosphere
; SHARAD
; Sounding radar
; Total electron content
; Building materials
; comet
; data assimilation
; electron
; ionosphere
; Martian atmosphere
; observational method
; radar
; spatiotemporal analysis
英文摘要: The close passage of Comet C/2013 A1 (Siding Spring) to Mars provided a unique opportunity to observe the interaction of cometary materials with the Martian ionosphere and atmosphere using the sounding radar SHARAD (SHAllow RADar) aboard Mars Reconnaissance Orbiter. In two nightside observations, acquired in the 10 h following the closest approach, the SHARAD data reveal a significant increase of the total electron content (TEC). The observed TEC values are typical for daylight hours just after dawn or before sunset but are unprecedented this deep into the night. Results support two predictions indicating that cometary pickup O+ ions, or ions generated from the ablation of cometary dust, are responsible for the creation of an additional ion layer. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945228941&doi=10.1002%2f2015GL064150&partnerID=40&md5=4ec9cd9efe70daaa84dc0661bcc04022
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8265
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: Dipartimento DIET, Università di Roma la Sapienza, Rome, Italy
Recommended Citation:
Restano M.,Plaut J.J.,Campbell B.A.,et al. Effects of the passage of Comet C/2013 A1 (Siding Spring) observed by the Shallow Radar (SHARAD) on Mars Reconnaissance Orbiter[J]. Geophysical Research Letters,2015-01-01,42(12).