'Sloshing' from celestial collisions solves mystery of how galactic clusters stay hot
Monday, March 10, 2025 - 10:34
in Astronomy & Space
The XRISM collaboration has discovered flows of hot gas in the core of the Centaurus Cluster. By comparing state-of-the-art X-ray measurements from the XRISM satellite with numerical simulations, they showed this is evidence for collisions between galaxy clusters, causing gas inside to "slosh." This solves the longstanding mystery of how cluster cores stay hot, and sheds light on how our universe continues to evolve.