OBSERVATIONS OF HIGH RESOLUTION SPECTRA OF COMET HALE–BOPP (C/1995 O1) AT THE SAO OF THE RAS


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Abstract

We present the results of the preliminary study of the comet Hale–Bopp spectrum obtained April 17, 1997 by K. Churyumov and F. Mussayev with the help of the 1-meter Zeiss reflector and the echelle spectrometer (spectral resolution λ/Δ λ ≈ 50000)), CCD and the long slit, oriented along the radius-vector (’’Sun-comet direction‘‘)). Energy distributions for three selected regions including the C3, C2(0-0)) and CN(Δ ν = 0)) molecules emissions of the comet Hale–Bopp spectrum were built. The rotational lines of the CN(Δ ν = 0)) band were identified. The nature of the high emission peak near λ 4020 Å in the C3band is discussed. The presence of the cometary continuum of the nonsolar origin is assumed.

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