Technical note: Scintillations of the double star α Cru observed by GOMOS/Envisat

In this paper, we discuss scintillation time-spectra of the double star α Cru, which were measured by the GOMOS/Envisat photometer. The components of α Cru are not resolved by the angular field of view of the detector. The double structure of the light source reveals itself in the modulation of the...

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Bibliographic Details
Published in:Atmospheric chemistry and physics 2009-01, Vol.9 (22), p.8967-8973
Main Authors: Sofieva, V. F., Dalaudier, F., Kan, V., Gurvich, A. S.
Format: Article
Language:English
Subjects:
Atmospheric and Oceanic Physics
Physics
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Summary:In this paper, we discuss scintillation time-spectra of the double star α Cru, which were measured by the GOMOS/Envisat photometer. The components of α Cru are not resolved by the angular field of view of the detector. The double structure of the light source reveals itself in the modulation of the observed scintillation spectra; this modulation is caused by anisotropic irregularities of the stratospheric air density. We present a qualitative and quantitative explanation of the properties of the double-star scintillation spectra. Possibilities of using double star scintillations for studying atmospheric air density irregularities are also discussed in the paper.
ISSN:1680-7324
1680-7316
1680-7324
DOI:10.5194/acp-9-8967-2009