Saved in:
| Main Authors: | , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.00114 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915421257465856 |
|---|---|
| author | Lima, J. A. S. Benetti, M. H. |
| author_facet | Lima, J. A. S. Benetti, M. H. |
| contents | An extension of Maxwell's original prescription for an ideal gas is adopted to derive a broad class of Kappa-type velocity distributions, encompassing both fat and short-tailed forms. Within this general framework, a physically consistent fat-tailed Kappa distribution is identified that accurately fits recent suprathermal data. In particular, a kinetic physical temperature $T$ emerges naturally from the model, eliminating the need to invoke an effective temperature $T_{κ\ell}$, as is commonly done in the literature. Finally, it is argued that only a particular value of $\ell$ ensures a satisfactory fit to the data when the physical kinetic temperature is employed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_00114 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unified Description of Kappa-type velocity distributions Lima, J. A. S. Benetti, M. H. Plasma Physics An extension of Maxwell's original prescription for an ideal gas is adopted to derive a broad class of Kappa-type velocity distributions, encompassing both fat and short-tailed forms. Within this general framework, a physically consistent fat-tailed Kappa distribution is identified that accurately fits recent suprathermal data. In particular, a kinetic physical temperature $T$ emerges naturally from the model, eliminating the need to invoke an effective temperature $T_{κ\ell}$, as is commonly done in the literature. Finally, it is argued that only a particular value of $\ell$ ensures a satisfactory fit to the data when the physical kinetic temperature is employed. |
| title | Unified Description of Kappa-type velocity distributions |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2508.00114 |