{ "id": "cond-mat/0409480", "version": "v1", "published": "2004-09-18T06:49:54.000Z", "updated": "2004-09-18T06:49:54.000Z", "title": "The nonextensive parameter and Tsallis distribution for self-gravitating systems", "authors": [ "Du Jiulin" ], "comment": "10 pages, 26 references", "journal": "Europhys. Lett. 67: 893-899, 2004", "doi": "10.1209/epl/i2004-10145-2", "categories": [ "cond-mat.stat-mech", "astro-ph" ], "abstract": "The properties of the nonextensive parameter q and the Tsallis distribution for self-gravitating systems are studied. A mathematical expression of q is deduced based on the generalized Boltzmann equation, the q-H theorem and the generalized Maxwellian q-velocity distribution in the framework of Tsallis statistics. We obtain a clear understanding of the physics of q different from unity with regard to the temperature gradient and the gravitational potential of the self-gravitating systems. It is suggested that the Tsallis statistics could be statistics suitable for describing the nonequilibrium systems with inhomogeneous temperature and the long-range interactions.", "revisions": [ { "version": "v1", "updated": "2004-09-18T06:49:54.000Z" } ], "analyses": { "keywords": [ "self-gravitating systems", "tsallis distribution", "nonextensive parameter", "tsallis statistics", "generalized maxwellian q-velocity distribution" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 658760 } } }