Year: 2024
Type: article
Abstract: We presentGravity.jl, a new proprietary software for the modeling of gravitational lens systems.Gravity.jlis written in the Julia programming language, and is designed to be fast, accurate, and flexible. It can be used to model gravitational lens systems composed of multiple lensing planes, and to perform Bayesian inference on the lens model parameters. In this paper we present the theoretical and statistical ideas behind the code, and we describe its main features. In this first paper of the series, we focus on the modeling of point-like and small extended sources, for which we can linearize the lens equation. We show a practical use ofGravity.jlon a galaxy-scale lens, and we compare the results with those obtained with other codes. We also show howGravity.jlcan be used to perform Bayesian inference on cosmological parameters.
Source: Astronomy and Astrophysics
Author: Marco Lombardi
Institution: University of Milan
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,732
OpenAlex ID: W4402543086