AbstractThis paper presents the results of a statistical analysis of the dynamic parameters of 300 comets that have osculating hyperbolic orbits. It is shown that such comets differ from other comets by their large perihelion distances and by a predominance of retrograde motion. It is shown that the values of i, the inclination of the hyperbolic comets, are in comparative excess over the interval 90–120°. The dominance by q, the perihelion distance, renders it difficult to suggest that the excess hyperbolic velocity of these comets can be the result of physical processes that take place in their nuclei. Aspects of the following working hypothesis, that the hyperbolic excess of parameter e might be formed after comets pass through meteoroid streams, are also studied. To evaluate this hypothesis, the distribution of the orbits of hyperbolic comets relative to the plane of motion of 112 established meteoroid streams are analyzed. The number (N) of orbit nodes for hyperbolic comets with respect to the plane of each stream at various distances is calculated. To determine the degree of redundancy of N, a special computing algorithm was applied that provided the expected value nav as well as the standard deviation σ for the number of cometary nodes at the plane of each stream. A comparative analysis of the N and nav values that take σ into account suggests an excess in 40 stream cases. This implies that the passage of comets through meteoroid streams can lead to an acceleration of the comets’ heliocentric velocity.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Collisions with meteoroid streams as one possible mechanism for the formation of hyperbolic cometary orbits


    Contributors:

    Published in:

    Advances in Space Research ; 60 , 1 ; 199-203


    Publication date :

    2017-03-23


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Meteoroid/Asteroid collisions with cometary nuclei and the P/Halley outburst

    Hughes, D. | British Library Conference Proceedings | 1993


    Major Meteoroid Streams

    G. L. Kraus | NTIS | 1963



    Active processes in cometary nucleus and new meteoroid swarms

    Ibadinov, Kh.I. / Buriev, A.M. / Safarov, A.G. et al. | Elsevier | 2015


    Characterizing the Annual Meteoroid Streams

    Beech, M. / Integrity Testing Laboratory | British Library Conference Proceedings | 2001