Abstract
The lensing and Einstein ring at the core of the galaxy cluster Abell 3827 are reproduced in the modified gravity theory (MOG). The estimated effective lensing mass within for a baryon mass within the same radius produces the observed Einstein ring angular radius . A detailed derivation of the total lensing mass is based on modeling of the cluster configuration of galaxies, intracluster light and x-ray emission. The MOG can fit the lensing and Einstein ring in Abell 3827 without dark matter as well as general relativity with dark matter.
- Received 16 August 2020
- Revised 30 December 2020
- Accepted 2 February 2021
DOI:https://doi.org/10.1103/PhysRevD.103.044045
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