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Galactic bones inside Milky Way’s skeleton are a magnetic mess

This map shows the direction of magnetic fields in G47 bone over an image of the filament taken by the Herschel Space Observatory. The red and yellow areas are regions of high dust and gas density. (Image credits: G47: ESA/Herschel/PACS/SPIRE/Ke Wang et al. 2015; Polarization map: Stephens et al., 2021)

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Astronomers have created the most detailed map yet of the magnetic field within a portion of one of the Milky Way’s spiral arms called the galactic bone — a long thread of dense gas and dust that forms at the center of a spiral galaxy’s arm. The new map reveals a random jumble of magnetic lines that contradict established magnetic properties seen in the rest of the Milky Way’s skeleton.

the Milky Way is a spiral galaxy, and the majority of the galaxy’s stars, and the cosmic dust that gives them birth, are concentrated in massive, elongated arms that revolve around the galactic center. Each arm has a series of galactic bones running through its middle, much like humans have bones running through the middle of our limbs. The gas and dust in these skeletal filaments are so dense that the bones produce their own magnetic Area.

Galactic bones inside Milky Way’s skeleton are a magnetic mess Source link Galactic bones inside Milky Way’s skeleton are a magnetic mess

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