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arXiv · 1809.01182

Cosmological hydrodynamics with relativistic pressure and velocity

Hyerim Noh·Jai-chan Hwang·Chan-Gyung Park
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Abstract

We present hydrodynamic equations with relativistic pressure and velocity in the presence of weak gravity, in a cosmological context. Previously we consistently derived special relativistic hydrodynamic equations with weak gravity in Minkowski background. With the relativistic pressure and velocity one cannot derive the cosmological counterpart by a simple transformation from equations in the Minkowski background. Here we present a proper derivation. We point out the potential importance of relativistic pressure and velocity in gravitational lensing.

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Hyerim Noh, Jai-chan Hwang, Chan-Gyung Park. 2018-08-31. Cosmological hydrodynamics with relativistic pressure and velocity. https://doi.org/10.1088/1475-7516%2F2018%2F11%2F002

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