(ORDO NEWS) ā Astronomers have discovered a pair of gravitationally bound quasars in merging galaxies.
Quasars are incredibly bright objects that are based on black holes. When the surrounding matter enters the accretion disk of the black hole, it heats up and becomes a powerful source of radiation.
Supermassive black holes, in turn, are located in the centers of galaxies, including the Milky Way (however, not every one of them generates a quasar).
Astronomers have now managed to image the ancient double quasar using the Hubble telescope.
This was done as a result of targeted searches, since scientists are interested in studying how the merger of galaxies proceeds, especially in the era of the young universe.
The discovered quasars are now observed in the form in which they were 3 billion years after the big bang.
Over the past 10 billion years, the host galaxies have likely evolved into a giant elliptical galaxy, and a pair of quasars have evolved into a very large supermassive black hole.
The nearby elliptical galaxy M87 has a very large black hole with a mass 6.5 billion times that of the Sun. This black hole may have grown from one or more galaxy mergers over billions of years.
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