The Hubble Space Telescope’s most distant galaxy identified himself confirmed spectroscopically. (NASA, ESA, P. Oesch / Yale U.)
Astronomers at the University of Yale and California scientists presented a new galaxy that transports us to ancient times the initial formation of the universe.
The galaxy, registered under the name EGS-zs8-1 is very bright and image corresponds to more than 13 billion years ago.
“It’s one of the brightest objects and mass in the early Universe, “NASA said on May 5.
At the time the universe was only five percent of the 13.8 billion years of life from Big Bang Bang. It was still a very young universe. The galaxy, therefore, formed in the first 670 million years.
“has already grown more than 15 percent of the mass of our own Milky Way today,” said Pascal Oesch, lead author study of Yale University, New Haven, Connecticut. “The new distance measurement also allowed astronomers to determine that the EGS-zs8-1 galaxy was forming stars very quickly, about 80 times faster than our galaxy, the Milky Way has however today the rate of star formation one star per year.
Very few discovered galaxies that correspond to this time period, and NASA said “each commit adds another piece to the puzzle of how the first generations of galaxies formed in the early universe, “said Pieter van Dokkum, a researcher at Yale.
The discovery was made possible by a spectrometer Keck I telescope, allowing astronomers to study efficiently several galaxies at the same time.
see EGS-zs8-1 observations reveal that at that time the galaxy was captured, the universe was undergoing major changes, and possibly hydrogen was responsible for a new, more transparent view of the atmosphere of bodies celestial. “It seems that the young stars in the first galaxies as EGS-zs8-1 were the main drivers of this transition, called reionization,” said Rychard Bouwens of Leiden Observatory, Leiden, the Netherlands.
“These new observations of the Hubble, Spitzer and Keck telescopes together also raise new questions. Confirm that massive galaxies existed in the early history of the universe, but their physical properties were very different from the observed galaxies today. The primary gas of these galaxies allow rapid formation of stars
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