« Essential Guide to the EU – Chapter 3



Highly energetic processes are observed in nebula NGC 3603: blue supergiant Sher 25 with toroidal ring and bipolar jets, upper center; arc and glow mode plasma discharges as emission nebula (yellow-white areas); clustered hot blue Wolf-Rayet and young O-type stars, with electric filaments and sheets throughout the dusty plasma regions of the nebula. Image credit: W. Brandner (JPL/IPAC), E. Grebel (U. of Washington), You-Hua Chou (U. of Illinois, Urbana-Champaign), and NASA Hubble Space Telescope

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