caa a22 4500 386367620 CHVBK 20180307111941.0 cr unu---uuuuu 161130e198908 xx s 000 0 eng 10.1017/S0022377800014161 doi S0022377800014161 pii (NATIONALLICENCE)cambridge-10.1017/S0022377800014161 Duffy Peter School of Cosmic Physics, Dublic Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland The acceleration of cometary ions by Alfvén waves [Elektronische Daten] [Peter Duffy] In this paper the theoretical aspects of the stochastic acceleration of photoionized pick-up ions upstream of a comet's bow shock are examined. The acceleration is due to the resonant interaction of the ions with Alfvén waves. By making physically reasonable assumptions for the turbulent fields and by including an exponential spatial factor in the injection term, it is found that, with spatial diffusion ignored, exact solutions can be found. Copyright © Cambridge University Press 1989 Journal of Plasma Physics Cambridge University Press 42/1(1989-08), 13-25 0022-3778 42:1<13 1989 42 PLA https://doi.org/10.1017/S0022377800014161 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022377800014161 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Duffy Peter School of Cosmic Physics, Dublic Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland NATIONALLICENCE 773 0- Journal of Plasma Physics Cambridge University Press 42/1(1989-08), 13-25 0022-3778 42:1<13 1989 42 PLA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge