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Title:
Interplanetary gas. XXII - Plasma tail disconnection events in comets - Evidence for magnetic field line reconnection at interplanetary sector boundaries
Authors:
Niedner, M. B., Jr.; Brandt, J. C.
Affiliation:
AA(NASA, Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Greenbelt, Md.), AB(NASA, Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Greenbelt, Md.)
Publication:
Astrophysical Journal, Part 1, vol. 223, July 15, 1978, p. 655-670. (ApJ Homepage)
Publication Date:
07/1978
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
COMET TAILS, INTERPLANETARY GAS, INTERPLANETARY MAGNETIC FIELDS, LINES OF FORCE, SOLAR WIND, ASTRONOMICAL MODELS, FILAMENTS, HALLEY'S COMET, IONOSPHERES, KOHOUTEK COMET, PLASMA DYNAMICS
Comment:
A&AA ID. AAA021.102.029
DOI:
10.1086/156299
Bibliographic Code:
1978ApJ...223..655N

Abstract

Attention is focused on a form of cometary activity which has been known for some time but is poorly understood: the discarding of a plasma tail by a comet. A link is found between plasma-tail rejections and conditions in the solar wind. A model is presented in which a disconnected tail is the end result of magnetic-field-line reconnection in the cometary ionosphere caused by the traversal of a magnetic sector boundary. Observations of plasma tails appear to be the best and only method at present of mapping the interplanetary sector structure out of the ecliptic plane.

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