Acceleration of cometary plasma tails |
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| Authors: | Wolfgang Kundt V Krishan |
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| Institution: | (1) Institut für Astrophysik der Universität, Bonn, Germany;(2) Indian Institute of Astrophysics, Bangalore, India |
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| Abstract: | Cometary plasma tails are accelerated by the solar wind to  half its velocity, corresponding to some 102 times the solar-wind momentum density. We corroborate Alfvén's (1957)  wind-sock mechanism according to which the momentum transfer is brought about by magnetic rigidity. |
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