Relaxational effects in radiating stellar collapse
Relaxational effects in radiating stellar collapse
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DOI：
10.1046/j.1365-8711.1999.02963.x
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发表时间：
1998-10
影响因子：
4.8
通讯作者：
M. Govender;R. Maartens;S. Maharaj
中科院分区：
文献类型：
--
作者：
M. Govender;R. Maartens;S. Maharaj
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.
