PT2 - Gravitational lensing and shadows |
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Speaker |
Werner, Marcus |
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Coauthors |
Schuller, F. P. |
| Talk Title |
Gravitational Lensing in Area Metric Spacetimes |
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Abstract |
Recent work in geometrodynamics has shown that predictive gravitational dynamics can be derived from the underlying spacetime kinematics (see session AT5 - Constructive Gravity). On the one hand, this allows modifications of GR due to non-metric spacetime structures to be studied with minimal assumptions; on the other hand, non-metricities give rise to qualitatively new gravitational lensing effects, such as birefringence, whose observational test could then provide strong constraints on such modifications. In this talk, I consider ray optics in area metric geometry and discuss lensing properties for area metric Schwarzschild spacetime in the perturbative regime. This includes effects on magnification and deviations from the standard Etherington distance duality relation. |
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Talk view |
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