1998/10/01 by Megandhren Govender, Megan Govender, Roy Maartens +2 · 3 citations
Mathematics · Physics and Astronomy · #Cosmology and Gravitation Theories #Gas Dynamics and Kinetic Theory #Pulsars and Gravitational Waves Research #gr-qc
paper · pdf · doi:10.1046/j.1365-8711.1999.02963.x
published as Mon.Not.Roy.Astron.Soc. 310 (1999) 557 · 10 pages
arxiv created 1998/10/01 · openalex publication_date 1999/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Relaxational 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.