General relativistic hydrodynamics and radiation transport

Details General relativistic hydrodynamics and radiation transport General relativistic hydrodynamics and radiation transport

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nyasa.571..265b&link_type=abstract

(NASA, NSF, Texas Academy of Science, et al., Texas Symposium on Relativistic Astrophysics, 14th, Dallas, TX, Dec. 11-16, 1988)

Astronomy and Astrophysics

Astrophysics

1

Gravitational Collapse, Hydrodynamic Equations, Radiation Transport, Relativistic Effects, Stellar Cores, Eddington Approximation, Gauge Theory, Momentum Transfer

Scientific paper

Results are reported from computations of relativistic radiation transport using the implicit hydrodynamics code GRIPOS (Shinder et al., 1988). The general-relativistic transport equation and the moment equations are rewritten in polar-sliced comoving coordinates and solved to obtain the variable Eddington factor by generalization of the tangent-ray method of nonrelativistic transport theory. The results are presented in extensive graphs and discussed in detail. It is found that the inclusion of gravity in the computation leads to (1) enhancement of the optical thickness, moderately reducing the forward peaking of the radiation field in an extended spherical atmosphere, and (2) redshift of the luminosity and mean intensity.

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