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Astronomers Catch Wind Rushing Out of Galaxy

3 Nov 2019, 08:48 UTC
Astronomers Catch Wind Rushing Out of Galaxy Jim Geach, David Tree, Peter Richardson (University of Hertfordshire)

Exploring the influence of galactic winds from a distant galaxy called Makani, UC San Diego's Alison Coil, Rhodes College's David Rupke and a group of collaborators from around the world made a novel discovery. Published in Nature, their study's findings provide direct evidence for the first time of the role of galactic winds--ejections of gas from galaxies--in creating the circumgalactic medium (CGM). It exists in the regions around galaxies, and it plays an active role in their cosmic evolution. The unique composition of Makani--meaning wind in Hawaiian--uniquely lent itself to the breakthrough findings.

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