Galactic whirlpools

David Jones

Nature, 1997, vol. 389, issue 6654, 918-918

Abstract: Interstellar gas rotates around the centre of the Galaxy more quickly than it ought to. Astronomers believe that this is caused by the gravity of dark matter; but Daedalus thinks it may be viscous drag, with the rapidly spinning central regions speeding up the outer parts, just like the water going down a plughole (the plughole in this case being the central black hole). He proposes that astronomers look for the gurgling noise that must be produced.

Date: 1997
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DOI: 10.1038/40032

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