Abstract
More than 3000 unique spectra of the Halley comet in the near UV and visible region on 9, 10, and 11 March 1986 are registered and processed. Two-dimensional monochromatic images are constructed for different cometary species and the continuum. An original method for the dust continuum glow and gas emissions separation is worked out. Images of the emission spatial distribution of the cometary atmosphere are obtained. The strongest are the emissions of OH (considered here in details), C 2, CN, C 3 and CH. The neutral gas production rate and quantities describing their spatial distribution are determined by the measured intensities (Q OH ∼ 8×1029 mol/s). Results show strong anisotropic distribution of the dust and gas emission with the decreasing of the VEGA-comet distance. The hypothesis of jets structures origin near the nucleus is affirmed for the radicals and the dust continuum. A tomographic reconstruction of the dust continuum distribution around the nucleus is made. A model of isotropic and anisotropic dust ejection can approximately describe it. Two strong jets and dust shells are obtained.
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