Hamburg 2016 – scientific programme
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GR: Fachverband Gravitation und Relativitätstheorie
GR 11: Classical General Relativity II
GR 11.5: Talk
Thursday, March 3, 2016, 15:35–15:50, VMP6 HS A
General-relativistic ray optics in a nonmagnetized, pressureless two-fluid plasma — •Karen Schulze-Koops1, Volker Perlick2, and Dominik Schwarz3 — 1Uni Bielefeld/ ZARM — 2Uni Bremen/ ZARM — 3Uni Bielefeld
We investigate the influence of a plasma on the propagation of light in a general-relativistic spacetime. We restrict to the simple plasma model of a nonmagnetized, pressureless two-fluid plasma. Applying the Hamilton formalism to light rays we describe how Sachs equations, reciprocity theorem, and distance measures have to be modified when the influence of the plasma is considered. We briefly discuss applications to Robertson-Walker universes.