lunes, 27 de junio de 2011

Primordial Galaxies a Trillion Times Brighter Than the Sun Found Inside Cosmic Blobs & 9 new Items


Image of blob
Galaxies a trillion times brighter than our Sun have been discovered inside enormous blobs that were first found about six years ago by visible-light telescopes, located billions of light-years away in ancient galactic structures or filaments, where thousands of young galaxies are clustered together. These large, fuzzy galactic halos are made up of hot hydrogen gas and are about 10 times as large as the galaxies they encompass. Astronomers can see glowing blobs, but they don't know what provides the energy to light them up. But they have a hunch.
Lyman-alpha blobs are so called because they strongly emit radiation due to the Lyman-alpha emission line of hydrogen gas. Normally, Lyman-alpha emission is in the ultraviolet part of the spectrum, but Lyman-apha blobs are so distant, their light is redshifted to (longer) optical wavelengths.








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Galaxies a trillion times brighter than our Sun have been discovered inside enormous blobs that were first found about six years ago by visible-light telescopes, located billions of light-years away in ancient galactic structures or filaments, where thousands of young...



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Mountain climber Rodney Hogg made a grisly discovery on his route to the 29,000-foot peak of Mt. Everest when he spotted the frozen body of his close friend, Peter Kinloch — a 28-year-old from Scotland who died of frostbite and...




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