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DOI: 10.1002/2016GL067707
论文题名:
On the evening time exosphere of Mars: Result from MENCA aboard Mars Orbiter Mission
作者: Bhardwaj A.; Thampi S.V.; Das T.P.; Dhanya M.B.; Naik N.; Vajja D.P.; Pradeepkumar P.; Sreelatha P.; Supriya G.; Abhishek J.K.; Mohankumar S.V.; Thampi R.S.; Yadav V.K.; Sundar B.; Nandi A.; Padmanabhan G.P.; Aliyas A.V.
刊名: Geophysical Research Letters
ISSN: 0094-9315
EISSN: 1944-9046
出版年: 2016
卷: 43, 期:5
起始页码: 1862
结束页码: 1867
语种: 英语
英文关键词: composition ; exosphere ; Mars ; MENCA ; MOM
Scopus关键词: Carbon dioxide ; Chemical analysis ; Altitude profiles ; Exosphere ; In-situ measurement ; Mars ; MENCA ; Quadrupole mass spectrometer ; Separated region ; Thermal escape ; Ionosphere
英文摘要: The Mars Exospheric Neutral Composition Analyser (MENCA) aboard the Indian Mars Orbiter Mission (MOM) is a quadrupole mass spectrometer which provides in situ measurement of the composition of the low-latitude Martian neutral exosphere. The altitude profiles of the three major constituents, i.e., amu 44 (CO2), amu 28 (N2 + CO), and amu 16 (O) in the Martian exosphere during evening (close to sunset terminator) hours are reported using MENCA observations from four orbits of MOM during late December 2014, when MOM's periapsis altitude was the lowest. The altitude range of the observation encompasses the diffusively separated region much above the well-mixed atmosphere. The transition from CO2 to O-dominated region is observed near 270 km. The mean exospheric temperature derived using these three mass numbers is 271 ± 5 K. These first observations corresponding to the Martian evening hours would help to provide constraints to the thermal escape models. © 2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960442567&doi=10.1002%2f2016GL067707&partnerID=40&md5=9004799e7d9145e5db78e7df330d16f4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10278
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: Space Physics Laboratory, Vikram Sarabhai Space Centre, Thiruvananthapuram, India

Recommended Citation:
Bhardwaj A.,Thampi S.V.,Das T.P.,et al. On the evening time exosphere of Mars: Result from MENCA aboard Mars Orbiter Mission[J]. Geophysical Research Letters,2016-01-01,43(5).
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