The archaeological record of the Milky Way written by atomic hydrogen https://www.mpg.de/15902255/the-archaeological-record-of-the-milky-way-written-by-atomic-hydrogen
An international group of astronomers, led by Juan Diego Soler of the Max Planck Institute for Astronomy, have found a complex network of filamentary structures of atomic hydrogen gas that pervades the Milky Way. They made this intricate web of gas visible by applying techniques from machine vision to THOR survey data that provides the most detailed view on the distribution of atomic hydrogen in the inner Milky Way to date. The scientists analysed the filaments’ orientations relative to the Milky Way disk using statistical methods and simulations. They inferred that the structure conserved an imprint of historic dynamical processes induced by the rotation of the galactic disk and feedback from ancient supernova explosions.
The results and analysis tools from this study offer a new link between the observations