The First Generation Of Stars

867 WordsJun 23, 20154 Pages
The article printed in the Nature News on June 18, 2015 describes the first look at the first generation of stars that give way to the universe. These stars, most likely from the late developing cluster of the first generation of stars, are strong evidence of primordial stars. Primordial stars are stars that are considered the original stars of the universe, and the precursors to the rest of the stars and celestial bodies in the universe. David Sobral and his team at the University of Lisbon led the work in finding this cluster of stars in a bright galaxy, named COSMOS Redshift 7 (CR7). The team at the University of Lisbon used the Subaru Telescope in Hawaii to first detect the light spectrum from CR7, and used three additional telescopes to determine which of the distant bright galaxies the light originated. The Subaru Telescope is located in Mauna Kea, Hawaii, and is an 8.2 metre optical-infrared telescope, operated by the National Astronomical Observatory of Japan (‘Subaru telescope’, n.d.). Situated in the summit of Mauna Kea, the telescope collects light using a mirror, and focuses the photons to create high resolution image. The mirrors in the telescope have a small error margin of 0.012 μm, which allows for the telescope to provide crisp images. The Subaru telescope were used to pan across the sky to look for light spectrum signals from distant bright galaxies. Upon exacting the location of the light spectrum, Sobral and his team analyzed the light signals. They
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