Artist Impression of Early Galaxy (IMAGE)

University of California - Santa Cruz

Artist Impression of Early Galaxy

Caption

This is an artist impression of a progenitor of Milky Way-like galaxies in the early universe with a background quasar shining through a 'super halo' of hydrogen gas surrounding the galaxy. New ALMA observations of two such galaxies reveal that these vast halos extend well beyond the galaxies' dusty, star-forming disks. The galaxies were initially found by the absorption of background quasar light passing through the galaxies. ALMA was able to image the ionized carbon in the galaxies' disks, revealing crucial details about their structures.

Credit

A. Angelich (NRAO/AUI/NSF)

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