Negative heat capacity and non-extensive kinetic theory

  title={Negative heat capacity and non-extensive kinetic theory},
  author={R. Silva and Jailson Alcaniz},
  journal={Physics Letters A},
Abstract The 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 →∞). 

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