A possible Neck-Line Structure in the dust trail of Comet Halley

Details A possible Neck-Line Structure in the dust trail of Comet Halley A possible Neck-Line Structure in the dust trail of Comet Halley

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...181l..13f&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 181, no. 1, July 1987, p. L13, L14.

Astronomy and Astrophysics

Astrophysics

6

Astronomical Models, Comet Tails, Cosmic Dust, Halley'S Comet, Spatial Distribution, Astronomical Spectroscopy, Comet Nuclei, Instrument Errors, Comets, Halley, Structure, Comet Tails, Dust, Comet Nuclei, Rotation, Models, Geometry, Parameters, Procedure, Earth-Based Observations

Scientific paper

The author proposes an interpretation of the anomalous dust structures observed in the dust tail of Comet Halley during April, May and June 1986. Sekanina et al. (1986) related these features to the rotation of the comet nucleus. The author considers the model of the neck-line structures (Pansecchi et al., 1987), which necessarily take place in every dust tail and which can be detected under proper geometrical circumstances (verified during the observations). This interpretation is able to explain the observations within the errors of measurement avoiding some strong hypotheses which are necessary in the Sekanina's interpretation.

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