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Article (Scientific journals)
Terrestrial OH nightglow measurements during the Rosetta flyby
Migliorini, A.; Gérard, Jean-Claude; Soret, Lauriane et al.
2015In Geophysical Research Letters, 42
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Keywords :
airglow; remote sensing; hydroxyl; Rosetta; atmospheric composition
Abstract :
[en] We present a study of the terrestrial hydroxyl nightglow emissions observed with the Visible and Infrared Thermal Imaging Spectrometer on board the Rosetta mission. During these observations, the OH Δv = 1 and 2 sequences were measured simultaneously. This allowed investigating the relative population of the v = 1 to 9 vibrational levels by using both sequences. In particular, the relative population of the vibrational level v = 1 is determined for the first time from observations. The vibrational population decreases with increasing vibrational quantum number. A good agreement is found with a recent model calculation assuming multiquantum relaxation for OH(v) quenching by O2 and single-quantum relaxation for OH(v) by N2.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Migliorini, A.
Gérard, Jean-Claude  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Soret, Lauriane  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Piccioni, G.
Capaccioni, F.
Filacchione, G.
Snels, M.
Tosi, F.
Language :
English
Title :
Terrestrial OH nightglow measurements during the Rosetta flyby
Publication date :
June 2015
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
Wiley, Washington, United States - District of Columbia
Volume :
42
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
PRODEX
Funders :
BELSPO - Service Public Fédéral de Programmation Politique scientifique
Available on ORBi :
since 25 July 2015

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