All-sky map of the Milky Way in motion using the Gaia data. Areas with significant motion are shown in black/purple and those with relatively low motion in yellow. A number of large scale filamentary disc structures are evident about the midplane. The map also shows the Magellanic Clouds and their connecting stellar bridge to left, while the Sgr dwarf galaxy currently being torn apart can be seen on the right (main body). Credit: Laporte et al.
An international team of astronomers, led by researcher Chervin Laporte of the Institute of Cosmos Sciences of the University of Barcelona (ICCUB-IEEC), has used data from the Gaia space mission to create a new map of the Galaxy’s Edge: Mystery Substructures Discovered in Milky Way’s Outer Disk.
Reference: “Kinematics beats dust: unveiling nested substructure in the perturbed outer disc of the Milky Way” by Chervin F P Laporte, Sergey E Koposov, Vasily Belokurov, 18 October 2021, Monthly Notices of the Royal Astronomical Society: Letters.
DOI: 10.1093/mnrasl/slab109
