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arXiv · 1508.07464

The Geodesic Light-Cone Coordinates, an Adapted System for Light-Signal-Based Cosmology

Fabien Nugier
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Abstract

Most of cosmological observables are light-propagated. I will present coordinates adapted to the propagation of null-like signals as observed by a geodesic observer. These "geodesic light-cone (GLC) coordinates" are general, adapted to calculations in inhomogeneous geometries, and their properties make them useful for a large spectrum of applications, from the estimation of the distance-redshift relation, the average on our past light cone, the effect of the large-scale structure on the Hubble diagram, to weak lensing calculations.

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Fabien Nugier. 2015-08-29. The Geodesic Light-Cone Coordinates, an Adapted System for Light-Signal-Based Cosmology. https://arxiv.org/abs/1508.07464

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