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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    Titel :

    Near infrared observations of comet Halley from Vega 2


    Beteiligte:
    Krasnopolsky, V.A. (Autor:in) / Moroz, V.I. (Autor:in) / Krysko, A.A. (Autor:in) / Barke, V.V. (Autor:in) / Jegulev, V.S. (Autor:in) / Parshev, V.A. (Autor:in) / Sanko, N.F. (Autor:in) / Tomashova, G.V. (Autor:in) / Tkachuk, A.Yu. (Autor:in) / Troshin, V.S. (Autor:in)

    Erschienen in:

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


    Erscheinungsdatum :

    01.01.1985


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Dust hazard near Halley Comet in case of the VEGA project

    Sagdeev, R.Z. / Anisimov, S.I. / Galeev, A.A. et al. | Elsevier | 1983


    The spectrum of comet halley obtained by VEGA-2

    Werner, R. / Guineva, V. / Stoeva, P. et al. | Elsevier | 1989


    Cometary boundaries: VEGA observations at Halley

    Schwingenschuh, K. / Riedler, W. / Schelch, G. et al. | Elsevier | 1986


    Comet Halley: Nucleus and jets (results of the VEGA mission)

    Sagdeev, R.Z. / Avanesov, G.A. / Barinov, I.V. et al. | Elsevier | 1985


    First results of plasma and neutral gas measurements from Vega - 1 2 near comet Halley

    Gringauz, K.I. / Remizov, A.P. / Verigin, M.I. et al. | Elsevier | 1985