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Image of a galaxy (center) with incoming cold gas flow, produced by rendering the gas distribution in a supercomputer simulation of a forming galaxy. A stream of primordial inflowing gas is illuminated from behind by a distant background quasar (lower left; quasar added by an artist, along with the starry background). Using data collected from the largest optical telescopes in the world, researchers led by Neil Crighton (MPIA and Swinburne University of Technology) have now made the first unambiguous detection of this accretion of pristine gas onto a star-forming galaxy, that was previously theorized to exist based on cosmological simulations of galaxy formation. This simulation shown here was run by the Making Galaxies in a Cosmological Context (MaGICC) project in the theory group at MPIA.
Credit: MPIA (G. Stinson / A. V. Macciò)
(42 KB, 510 x 383 pixels)
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