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Astronomers Discover Giant Ancient Stars in Milky Way
Astronomers have discovered a mysterious group of giant elderly stars at the heart of the Milky Way that are emitting solar system-sized clouds of dust and gas. The stars, which have been named "old smokers," sat quietly for many years, fading almost to invisibility, before suddenly puffing out vast...
Astronomers have discovered a mysterious group of giant elderly stars at the heart of the Milky Way that are emitting solar system-sized clouds of dust and gas. During these periods, young stars rapidly acquire mass by gorging on surrounding star-forming gas, leading to a sudden increase in luminosity. Convection currents and instabilities within the star could trigger the release of enormous columns of smoke, Prof Philip Lucas of the University of Hertfordshire, who led the observations, suggested.
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