AbstractSeveral ground-based observations of the Venus 1.27-μm O2 airglow were carried out from 2002 to 2005. Spectral image cubes were taken with the Okayama Astrophysical Observatory/infrared imaging spectrometer (superOASIS), the Gunma Astronomical Observatory/Cassegrain Near-Infrared Camera and NASA’s Infrared Telescope Facility/cryogenic echelle spectrograph (CSHELL). The brightest airglow features were found at around the anti-solar point, which is in agreement with previous studies. We derived the rotational temperature distributions on the nightside hemisphere from observed airglow spectra. The temperature shows a weak positive correlation with the airglow intensity. The result indicates the bright region is heated chemically and/or dynamically, and supports the existing scenario for the Venus O2 airglow. That is, the airglow is excited by the descending oxygen transported from the dayside.


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    Titel :

    Imaging spectroscopy of the Venus 1.27-μm O2 airglow with ground-based telescopes


    Beteiligte:
    Ohtsuki, S. (Autor:in) / Iwagami, N. (Autor:in) / Sagawa, H. (Autor:in) / Ueno, M. (Autor:in) / Kasaba, Y. (Autor:in) / Imamura, T. (Autor:in) / Nishihara, E. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 41 , 9 ; 1375-1380


    Erscheinungsdatum :

    2007-10-17


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch







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