Distributions of the Venus 1.27-μm O2 airglow and rotational temperature

Details Distributions of the Venus 1.27-μm O2 airglow and rotational temperature Distributions of the Venus 1.27-μm O2 airglow and rotational temperature

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008p%26ss...56.1391o&link_type=abstract

Planetary and Space Science, Volume 56, Issue 10, p. 1391-1398.

Astronomy and Astrophysics

Astrophysics

8

Scientific paper

Imaging spectroscopic observations of the Venus 1.27-μm O2 airglow were carried out with ground-based telescopes from 2002 to 2007. Spectral image cubes were taken with the Okayama Astrophysical Observatory/infrared imaging spectrometer (superOASIS), the Gunma Astronomical Observatory/near-infrared camera and NASA's Infrared Telescope Facility/cryogenic echelle spectrograph (CSHELL). The rotational temperature shows weak positive correlation with the airglow intensity. However, there are some regions that have almost same intensities but different temperatures. The intensities tend to decrease from the anti-solar point to the terminator besides local features. These results indicate that there are local strong downward flows superimposed on the subsolar-to-antisolar circulation.

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