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08 August 2022
  » arxiv » gr-qc/9810001

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Relaxational effects in radiating stellar collapse
Megan Govender ; Roy Maartens ; Sunil Maharaj ;
Date 1 Oct 1998
Journal Mon.Not.Roy.Astron.Soc. 310 (1999) 557
Subject gr-qc
AffiliationNatal), Roy Maartens (Portsmouth), Sunil Maharaj (Natal
AbstractRelaxational effects in stellar heat transport can in many cases be significant. Relativistic Fourier-Eckart theory is inherently quasi-stationary, and cannot incorporate these effects. The effects are naturally accounted for in causal relativistic thermodynamics, which provides an improved approximation to kinetic theory. Recent results, based on perturbations of a static star, show that relaxation effects can produce a significant increase in the central temperature and temperature gradient for a given luminosity. We use a simple stellar model that allows for non-perturbative deviations from staticity, and confirms qualitatively the predictions of the perturbative models.
Source arXiv, gr-qc/9810001
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