Physics – Space Physics
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ysc..conf...73k&link_type=abstract
12th Young Scientists' Conference on Astronomy and Space Physics, held in Kyiv, Ukraine, April 19-23, 2005, Eds.: Simon, A.; Gol
Physics
Space Physics
Scientific paper
Raman scattering is observing in the UV spectrum of giant planets even with low (1nm) resolution. Since it condition is scattering on the hydrogen molecules that, it is obviously, the intensity of Raman scattering details are lesser when the relative hydrogen concentration is lesser and when the role of aerosol constituent of atmosphere is increaser. Undoubtedly, the appearance of Raman scattering will lead to changing the single-scattering albedo. Raman scattering in the giant planets atmosphere lead to such effect as intensity of Fraunhofer-lines in the diffuse reflected by planets atmosphere are lesser than in the Solar spectrum. This effect leads to pseudo-emission in the UV spectra of giant planet. Raman scattering in the isothermic giant planet atmospheres were considered by Morozhenko (1997). But the planetary atmospheres are gas-aerosol medium, and the optical parameters are changing with altitude. We were computed the influence of non-isothermic atmosphere to intensity of Raman Scattering details in the Neptune atmosphere. There were shown that the intensity of Raman scattering will depend on the depth of its forming level in the optical homogeneous non-isothermic atmosphere and that the mistakes will be large when we don't take into account real temperature profile in the upper levels of atmosphere. Sun spectrum in the interval of wavelengthes ?? = 320 - 400 nm with resolution 0,004 ? was taking. Standard temperature profile of Neptune atmosphere was obtained from the observation data at space vehicle.
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