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astro-ph.CO2026
Toward Detecting the Moving Lens Effect with Optical Spectroscopy
David Wittman, Rodrigo Stancioli, Christopher Hopp
Relativity predicts that sky-plane motion of a gravitational lens changes the wavelengths of lensed photons. This moving lens effect is orders of magnitude smaller than cosmologica…
astro-ph.CO2026
X-SORTER (X-ray Survey Of meRging clusTErs in Redmapper): X-ray and Spectroscopic Characterization of 12 Optically Selected Galaxy Cluster Merger Candidates
Christopher Hopp, David Wittman, Rodrigo Stancioli +3
Merging galaxy clusters offer a unique probe of dark matter (DM) interactions through the spatial offsets between galaxies, the intracluster medium, and the DM halo. Systems that a…