BiGONLight: Light propagation with bilocal operators in numerical relativity

Journal
Date Issued
2021
Author(s)
Grasso, Michele
•
DOI
Abstract
BiGONLight, Bilocal Geodesic Operators framework for Numerical Light propagation, is a new tool for light propagation in numerical relativity. The package implements the bilocal geodesic operators formalism, a new framework for light propagation in general relativity. With BiGONLight it is possible to extract observables such as angular diameter distance, luminosity distance, magnification as well as new real-time observables like parallax and redshift drift within the same computation. As a test-bed for our code we consider two exact cosmological models, the ΛCDM and the inhomogeneous Szekeres model, and a simulated dust Universe. All our tests show an excellent agreement with known results.
Volume
39
Issue
1
Start page
015011
Uri
Url
Issn Identifier
0264-9381
Rights
open.access
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