Skip to main content

Comment on `Particle charge evolution during acceleration processes in solar flares' by M D Rodríguez-Frías, L del Peral and J Pérez-Peraza

The full text article is temporarily unavailable.

We apologise for the inconvenience. Please try again later.

Abstract:

Attention is drawn to the fact that results of the model obtained by Rodríguez-Frías et al are in conflict with both the straightforward physical consideration and the results of other models of charge-changing acceleration in solar flares. The numerical code given by Rodríguez-Frías et al generates an erroneous result that charge states of ions accelerated to few thermal energies can significantly differ from the equilibrium thermal ion charge state. However a straightforward calculation indicates that modification of the ion charge is possible only at much higher energies. We also provide a number of references to works on energy-dependent charge states of cosmic ray ions, which have been published for over 20 years, disproving a statement by Rodríguez-Frías et al that `it is usually assumed that the charge state of cosmic rays corresponds to the ionization equilibrium of the plasma where they undergo acceleration'.

Document Type: Miscellaneous

Affiliations: Space Research Laboratory, Department of Physics, University of Turku, Turku FIN-20014, Finland

Publication date: June 1, 2002

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more