A possible solar-wind cause of the segmented appearance and of the changes in orientation of the plasma-tail axis of Comet Austin 1982g

Details A possible solar-wind cause of the segmented appearance and of the changes in orientation of the plasma-tail axis of Comet Austin 1982g A possible solar-wind cause of the segmented appearance and of the changes in orientation of the plasma-tail axis of Comet Austin 1982g

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...57..410f&link_type=abstract

Icarus (ISSN 0019-1035), vol. 57, March 1984, p. 410-421.

Astronomy and Astrophysics

Astronomy

4

Comet Tails, Interplanetary Space, Solar Activity Effects, Solar Wind, Astrometry, Astronomical Photography, Correlation, Comets, Austin 1982G, Comet Tails, Plasma, Solar Wind, Observations, Features, Photographs, Analysis, Velocity, Solar Flares, Diagrams, Data, Geomagnetism, Models, Hypotheses, Anomalies

Scientific paper

Several directional discontinuities in the plasma tail of Comet Austin 1982g are apparent on photographs obtained by different observers between 1982 August 17.84 and August 21.85. Furthermore, anomalous changes in the orientation of the inner tail axis with respect to the projection on the sky of the prolonged radius vector are noticed. An analysis based on the wind-sock theory of plasma comet tail orientations shows that changes in the azimuthal component of the solar-wind velocity would have produced the observed anomalies. No satellite data on interplanetary conditions were available to check the existence of such a solar-wind event. A type II-IV solar radio event observed on August 17.64, followed by a geomagnetic storm on August 20.67, might denote, however, the existence of a solar flare-generated interplanetary disturbance.

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