Effects of Subhalos on Interpreting Highly Magnified Sources Near Lensing Caustics
Lingyuan Ji and Liang Dai 2025 ApJ 980 190
Taking the gravitationally lensed redshift z = 6.2 star Earendel as an example, researchers show that the presence of sub-galactic dark matter subhalos can change the interpretation of a lensed source.