Reference : Venus OH nightglow distribution based on VIRTIS limb observations from Venus Express
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/36262
Venus OH nightglow distribution based on VIRTIS limb observations from Venus Express
English
Soret, Lauriane mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Gérard, Jean-Claude mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Piccioni, Giuseppe mailto [> >]
Drossart, Pierre mailto [> >]
24-Mar-2010
Geophysical Research Letters
American Geophysical Union
37
L06805
Yes (verified by ORBi)
International
0094-8276
Washington
DC
[en] Venus ; nightglow ; VIRTIS
[en] The full set of VIRTIS‐M limb observations of the OH Venus nightglow has been analyzed to determine its characteristics. Based on 3328 limb profiles, we find that the mean peak intensity along the line of sight of the OH(deltaV = 1 sequence) is 0.35 MR and is located at 96.4 ± 5 km. The emission is highly variable and no dependence of the airglow layer altitude versus the
antisolar angle is observed. The peak brightness appears to decrease away from the antisolar point even if the variability at a given location is very strong. Some correlation between the intensity of the OH and the O2(a1Delta) emissions is also observed, resumably because atomic oxygen is a common precursor to the formation of O2(a1Delta) and O3, whose reaction with H produces excited OH. Comparing our results with predictions from a photochemical model, a constant H flux does not match the simultaneous OH and O2 airglow observations.
Researchers ; Professionals
http://hdl.handle.net/2268/36262
10.1029/2010GL042377
Copyright 2010 by the American Geophysical Union.0094‐8276/10/2010GL042377

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