Abstract Spatial distribution of the continuum radiation in the range of 0.95–1.9 μm presumes total dust production rate of the comet of 10ρ tonne s−1 (ρ is the dust material density) and its angular distribution proportional cos ϕ. Observations of the water vapor band at 1.38 μ m reveal strong jets, their time shift from the dust jet measured in situ is consistent with gas velocity of 0.82±0.1 km s−1 and dust velocity of 0.55±0.08 km s−1. The OH vibrational-rotational bands observed are excided directly via photolysis of water vapor. Water vapor production rate deduced from the H2O band and OH band intensities is 8×1029 s−1. Intensity of the CN(0,0) band result in the CN column density of 9×1012 cm−2, i.e. larger by a factor of 3 than given by the violet band.


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    Title :

    Near infrared observations of comet Halley from Vega 2


    Contributors:

    Published in:

    Advances in Space Research ; 5 , 12 ; 143-147


    Publication date :

    1985-01-01


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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