Overview
- Built from GLEAM and higher-resolution GLEAM-X surveys with the Murchison Widefield Array, the mosaic delivers roughly twice the resolution, ten times the sensitivity, and twice the area of the 2019 map.
- The image presents the first published low-frequency view of the entire Southern Galactic Plane, revealing the galaxy across 72–231 MHz in radio "colors."
- Processing took 18 months on Pawsey supercomputers, using advanced imaging and ionospheric-correction techniques to align and stack thousands of observations.
- The radio colors separate emission types, making supernova remnants stand out from star-forming HII regions and aiding studies of pulsars and large-scale galactic structure.
- The team notes the forthcoming SKA-Low in Australia is expected to surpass this map in sensitivity and resolution within the next decade.