Long-period comets with non-gravitational effects

Details Long-period comets with non-gravitational effects Long-period comets with non-gravitational effects

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...427.1117k&link_type=abstract

Astronomy and Astrophysics, v.427, p.1117-1126 (2004)

Astronomy and Astrophysics

Astrophysics

6

Solar System: General, Comets: General

Scientific paper

The influence of non-gravitational effects on the motion of long-period comets is analyzed. Investigations were performed for about 60 nearly-parabolic comets discovered during the last thirty years. All three non-gravitational parameters A1, A2, A3 were detected in the motion of 19 comets on the basis of positional observations only. For these comets the standard g(r) function as well as some of its modifications were used to model the ice sublimation from the cometary nucleus. For 14 of 19 comets the orientation of spin axes of the nucleus were also determined. Finally, the magnitude of the non-gravitational effects derived for the long-period comets have been compared with observed the non-gravitational perturbations on periodic comets.
Tables 1, 2, 4 and 6 are only available in electronic form at http://www.edpsciences.org

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