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astro-ph.CO2025
Mass dependence of halo baryon fractions from the kinetic Sunyaev-Zeldovich effect
Finn A. Roper, Yan-Chuan Cai, John A. Peacock
We detect the kinetic Sunyaev-Zeldovich imprint of peculiar motions of galaxy groups and clusters, using the photometric DESI Legacy Survey together with cosmic microwave backgroun…
astro-ph.CO2025
Detection of cosmological dipoles aligned with transverse peculiar velocities
Yan-Chuan Cai, John A. Peacock, Anna de Graaff +1
Peculiar velocities encode rich cosmological information, but their transverse components are hard to measure. Here, we present the first observations of a novel effect of transver…