Prognoz-6 data about ultraviolet sky background in dark and Milky Way regions of the sky |
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Authors: | A Zvereva A Severny |
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Institution: | Crimean Astrophysical Observatory, Crimea, USSR;Laboratoire d''Astronomie Spatiale, Marseille, France |
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Abstract: | Ultraviolet spectra (1100–1900 Å) of the sky background of 10 wide angle (6°×6°) regions obtained between 70 000 km and 200 000 km from the Earth with the photoelectric spectrometer “GALACTIKA” on board the satellite “PROGNOZ-6” are considered. The spectral energy distribution of the sky background, after subtraction of the stellar component, is similar for regions on both sides of the Milky Way and exhibits a strong U.V. light contribution. On the contrary, the Milky Way (lII=190° bII=+6°) is less rich in far U.V. light; this can be related to the predominance of an expected selective absorption near the galactic plane. The nature of U.V. excess at high galactic latitudes needs further investigations. |
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