The importance of secondary halos for strong lensing in massive galaxy clusters across redshift

• Published in: The Astrophysical Journal
• Main Authors: Li, Nan, Gladders, Michael D., Heitmann, Katrin, Rangel, Esteban M., Child, Hillary L., Florian, Michael K., Bleem, Lindsey E., Habib, Salman, Finkel, Hal J.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: American Astronomical Society 2019
• Subjects: Space and Planetary Science; Astronomy and Astrophysics; South Pole; Hubble; South pole
• Online Access: https://doi.org/10.3847/1538-4357/ab1f74; https://nottingham-repository.worktribe.com/file/2028147/1/TheImportanceOfSecondaryHalosForStrongLensingInMassiveGalaxyClustersAcrossRedshift-NanLi-UoN; https://nottingham-repository.worktribe.com/output/2028147

Cosmological cluster-scale strong gravitational lensing probes the mass distribution of the dense cores of massive dark matter halos and the structures along the line of sight from background sources to the observer. It is frequently assumed that the primary lens mass dominates the lensing, with the...