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A black hole brighter than our Sun sheds light on the origins of the universe

January 14, 2022 By Nupur Leave a Comment

About 400,000 years after the creation of the universe, a interval referred to as “The Age of Reionization” started. Throughout this time, the as soon as hotter universe started to chill and matter clustered collectively, forming the primary stars and galaxies. When these stars and galaxies emerged, their vitality heated their environment, re-ionizing a few of the hydrogen remaining within the universe.

The reionization of the universe is well-known, however figuring out the way it occurred has been troublesome. To search out out extra, astronomers peered past our Milky Means for clues. In a brand new examine, astronomers from the College of Iowa have recognized a supply in a sequence of galaxies referred to as Lyman continuum galaxies which will maintain clues to how the universe was reionized.

First picture of M87 – April 2019

Within the examine, Iowa astronomers recognized a black gap, 1,000,000 occasions brighter than our solar, which can have been just like the sources that fueled the reionization of the universe. “The implication is that outflows from black holes could also be vital in permitting the escape of ultraviolet radiation from galaxies that reionized the intergalactic medium,” stated Phil Kaaret, professor and chair of the Division of Physics and Astronomy and corresponding writer of the examine. .

“We will not but see the sources that truly fueled the reionization of the universe as a result of they’re too far-off,” defined Kaaret. “We checked out a close-by galaxy with related properties to the galaxies that fashioned within the early universe. One of many foremost causes the James Webb Area Telescope was constructed was to attempt to see the galaxies that host the sources that truly powered the reionization of the universe. “

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