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Astron. Astrophys. 335, 303-308 (1998)

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Heating and acceleration of minor ions in the solar wind

A. Czechowski 1, R. Ratkiewicz 1, J.F. McKenzie 2 and W.I. Axford 2

1 Space Research Centre, Polish Academy of Sciences, Bartycka 18A, PL-00716 Warsaw, Poland
2 Max-Planck-Institut für Aeronomie, Postfach 20, D-37189 Katlenburg-Lindau, Germany

Received 7 November 1997 / Accepted 23 March 1998


We make use of the results of a one-ion model of McKenzie et al. (1997) to obtain the critical solution describing the acceleration of a two-ion solar wind. The model includes preferential heating of the heavy ion species and the temperature anisotropy expected if the heating is predominantly due to ion-cyclotron damping. The relationship of the model to the picture emerging from UVCS/SOHO observations is discussed.

Key words: acceleration of particles – polarization – Sun: corona – solar wind

Send offprint requests to: A. Czechowski

© European Southern Observatory (ESO) 1998

Online publication: June 12, 1998