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Galaxy Distributions and Tsallis Statistical Mechanics

Akika Nakamichi·Izumi Joichi·Osamu Iguchi·Masahiro Morikawa
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Abstract

Large-scale astrophysical systems are non-extensive due to their long-range force of gravity. Here we show an approach toward the statistical mechanics of such self-gravitating systems (SGS). This is a generalization of the standard statistical mechanics based on the new definition of entropy; Tsallis statistical mechanics. Developing the composition of entropy and the generalized Euler relation, we investigate the galaxy distributions in count-in-cell method. This is applied to the data of CfA II South redshift survey.

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Akika Nakamichi, Izumi Joichi, Osamu Iguchi, Masahiro Morikawa. 2000-04-01. Galaxy Distributions and Tsallis Statistical Mechanics. https://arxiv.org/abs/astro-ph/0004004

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