Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998baas...30.1106c&link_type=abstract
American Astronomical Society, DPS meeting #30, #48.P07; Bulletin of the American Astronomical Society, Vol. 30, p.1106
Astronomy and Astrophysics
Astronomy
Scientific paper
We present preliminary modeling results of Venus night side imaging data in the near-infrared. The images were taken on 16 and 17 December 1997 using the Apache Point Observatory 3.5 meter telescope in Sunspot, NM. We used a Goddard-built acousto-optic tunable filter (AOTF) camera, which operates from 1.6--3.2 mu m and has a spectral resolution lambda /Delta lambda = 422 at 2.3 mu m. We constructed photometrically calibrated image cubes of the Venus night side in two spectral windows. The cubes contain 30 images in the 2.3 mu m window, and 12 images in the narrower 1.7 mu m window. We demonstrate this imaging technique as a powerful tool applicable to many types of observations of planetary atmospheres and/or surfaces. The image cubes of our Venus data consist of images taken inside and outside narrow molecular absorption bands corresponding to CO, SO_2, H_2O, HF, and OCS. We interpret reflectivity variations of the Venus night side in the context of variations in the lower cloud deck opacity and spatial variations of the above molecular constituents.
Chanover Nancy Janet
Glenar David A.
Hillman John J.
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