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29 March 2024
 
  » arxiv » astro-ph/0306009

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Negative heat capacity and non-extensive kinetic theory
R. Silva ; J. S. Alcaniz ;
Date 31 May 2003
Journal Phys.Lett. A313 (2003) 393-396
Subject Astrophysics; Statistical Mechanics | astro-ph cond-mat.stat-mech
AffiliationUERN) and J. S. Alcaniz (UFRN
AbstractThe negative nature of the heat capacity $C_V$ of thermodynamically isolated self-gravitating systems is rediscussed in the framework of a non-extensive kinetic theory. It is found that the dependence of $C_V$ on the non-extensive parameter $q$ gives rise to a negative branch with the critical value corresponding to $q = 5/3$ ($C_V o - infty$).
Source arXiv, astro-ph/0306009
Other source [GID 1011535] astro-ph/0306009
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