The discovery of a galaxy-wide superwind from a young massive galaxy at redshift z approximately 3.
High-velocity galactic outflows, driven by intense bursts of star formation and black hole accretion, are processes invoked by current theories of galaxy formation to terminate star formation in the most massive galaxies and to deposit heavy elements in the intergalactic medium. From existing observational evidence (for high-redshift galaxies) it is unclear whether such outflows are localized to regions of intense star formation just a few kiloparsecs in extent, or whether they instead have a...Expand abstract
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4 pages, 4 figures; published 14 July 2005 in Nature; PPARC press
release at http://www.pparc.ac.uk/Nw/superwind.asp