Sunday , June 20 2021

The brightest quasar found by the Hubble Telescope



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The Hubble Telescope discovered the brightest quasar ever seen in the early universe, which has the brightness of about 600 trillion suns. Astronomers used data from the European Space Agency / NASA's Hubble Space Telescope to find the ancient quasar, which they believe could provide insight into the birth of galaxies when the Universe was about a billion years old. Astronomers have said it is by far the brightest quasar ever discovered at the beginning of the universe. A quasar is the extremely bright nucleus of an active galaxy and its powerful brightness is created by the incredible amounts of energy released by the gas falling towards the supermassive black hole at its center. The newly discovered ancient quasar, cataloged as J043947.08 + 163415.7, is so old that the light received from it began its journey when the universe was only a billion years old. NASA's Wilkinson microwave anisotropy probe in 2012 estimated that the universe is more than 13 billion years old. Astronomers said the quasar has a brightness equivalent to about 600 trillion suns and the supermassive black hole that feeds it is several hundred million times larger than our sun. The data show not only that the supermassive black hole is accumulating matter for itself at an extremely high rate, but also that the quasar may be producing up to 10,000 stars a year, scientists said. This compares to the Milky Way, which produces about a new star each year. Lead author Xiaohui Fan of the University of Arizona said he did not expect to find many quads brighter than this across the universe. He added, "That's something we've been looking for a long time." We do not expect to find many quads brighter than in the whole observable universe. "Co-author Fabian Walter of the Max Planck Institute for Astronomy in Germany" His properties and his distance make him the leading candidate to investigate the evolution of distant quasars and the role that supermassive black holes have had in their star formation. "Australian Associated Press

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