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W26 is wider than the sun is 1500 times, making it the largest known stars in the universe. Researchers say red supergiant is nearing the end of its service life, will end up as a supernova explosion.
"The masses of the stars of tens of thousands of times greater than the sun to live in a very short and dramatic compared to the quality of life of small brothers and sisters," in the royal astronomical society (RAS) officials said in a statement. "Some massive stars live less than millions of years ago, they burn out its nuclear fuel, and for the supernova explosion. These stars on both ends of their lives is very unstable, and pulled out a lot of materials, from their outer envelope". Photo: [supernovae exploded star] great image
Astronomers using the European southern observatory's very large telescope in Chile's survey telescope (VST) research the galaxy's largest star clusters, about 16000 light-years away, Westerlund 1 from the earth is called the collection of hundreds of thousands of stars.
They stare at W26, it is located in the Westerlund 1, team noticed a strange phenomenon: giant star was surrounded by a large, glowing hydrogen gas cloud.
This is the first "ionization nebula" ever found around the red giant star, it will provide scientists with a new opportunity to study how to W26 and other celebrities like before it falls off layer could continue the supernova, shooting to the interstellar medium material, RAS official said.
"W26 itself is too great, make the gas to glow, astronomers speculate that the source of ionizing radiation can be hot blue stars in the cluster, also may be the rest of the weak, but hotter, companion W26," RAS official said. "In fact, the nebula is ionization will make it easier to study than in the future, if it is not ionized.
W26 Westerlund 1 a new photo ionization nebula glowing green stood in the blanket of stars. Despite its size, cluster looks a little dim, because gas and dust mask their ideas visible light earth.
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