'This quasar catalog gives us a three-dimensional map of the largest-ever volume of the universe,' researcher David Hogg said.
Astronomers have crafted a map of the most powerful form of supermassive black holes across several billion light years of space.The three-dimensional map plots the locations of 1.3 million quasars, some of which were active when the universe was barely born, 12.2 billion years ago, according to a new paper in The Astrophysical Journal.These quasars are some of the brightest objects in the universe and are powered by supermassive black holes at the centers of galaxies.
'The map was made using data from the European Space Agency's Gaia space telescope, which picked up signals from quasars in the background of other observations. The map has a donut-shaped gap in the middle where the Milky Way blocks our view of the rest of the universe.
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