Gravitational lensing study of cold dark matter led galactic halo
General Relativity and Quantum Cosmology
2021-07-15 v3 Astrophysics of Galaxies
Abstract
In this work the space-time geometry of the halo region in spiral galaxies is obtained considering the observed flat galactic rotation curve feature, invoking the Tully-Fisher relation and assuming the presence of cold dark matter in the galaxy. The gravitational lensing analysis is performed treating the so obtained space-time as a gravitational lens. It is found that the aforementioned space-time as the gravitational lens can consistently explain the galaxy-galaxy weak gravitational lensing observations and the lensing observations of the well-known Abell 370 galaxy cluster.
Keywords
Cite
@article{arxiv.1904.13390,
title = {Gravitational lensing study of cold dark matter led galactic halo},
author = {Samrat Ghosh and Arunava Bhadra and Amitabha Mukhopadhyay},
journal= {arXiv preprint arXiv:1904.13390},
year = {2021}
}
Comments
17 pages, 1 figure, to appear in IJMPD