Comment on 'Mathematical and physical aspects of Kappa velocity distribution' [Phys. Plasmas 14, 110702 (2007)]
- School of Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000 (South Africa)
- Department of Physics and Astronomy, Centre for Plasma Physics, Queen's University Belfast, Belfast, Northern Ireland BT7 1NN (United Kingdom)
A recent paper [L.-N. Hau and W.-Z. Fu, Phys. Plasmas 14, 110702 (2007)] deals with certain mathematical and physical properties of the kappa distribution. We comment on the authors' use of a form of distribution function that is different from the 'standard' form of the kappa distribution, and hence their results, inter alia for an expansion of the distribution function and for the associated number density in an electrostatic potential, do not fully reflect the dependence on {kappa} that would be associated with the conventional kappa distribution. We note that their definition of the kappa distribution function is also different from a modified distribution based on the notion of nonextensive entropy.
- OSTI ID:
- 21282145
- Journal Information:
- Physics of Plasmas, Vol. 16, Issue 9; Other Information: DOI: 10.1063/1.3213388; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
On the current sheet model with {kappa} distribution
Comment on 'Derivation of paleoclassical key hypothesis' [Phys. Plasmas 14, 040701 (2007)]