Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....72...50l&link_type=abstract
Astronomy and Astrophysics, vol. 72, no. 1-2, Feb. 1979, p. 50-54.
Astronomy and Astrophysics
Astrophysics
9
Astronomical Photography, Comet Tails, Interplanetary Dust, Interplanetary Magnetic Fields, Perihelions, Plasma-Particle Interactions, Radiation Pressure, Solar Wind, West, Comet, Comet Tails, Solar Wind, Evolution, Sun, Dust, Perihelion, Striae, Velocity, Structure, Photography
Scientific paper
The dynamical evolution of the striae in the tails of comet West 1975n is investigated. A synchrone-syndyne analysis of the overall tail structure is attempted, but it is found that the classical synchrone-syndyne description does not apply to the dynamical evolution of the striae. A subsequent examination of the main properties of the stria structure strongly suggests that all striae within a given tail appear to originate from a synchronic edge. A scenario for the formation of striae is proposed, according to which the bulk of the dust constituting a tail is released at or around perihelion and subsequently swept out under the influence of some unknown interaction that organizes the dust into narrow streaks, or striae. It is concluded that the unknown interaction involves the solar wind and a convected magnetic field.
Koutchmy Serge
Lamy Philippe L.
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