What burns is brighter than a quasar – the hungry and of great mass. Black hole That shines over all the galaxies as they greedily swallow everything they can’t reach?
What about “double quasar”?
In the new study, astronomers used NASA’s Hubble Space Telescope to look at the 10 billion-year-old cosmic past, where they detected two enormous quasars about to collide. These starving quasars, located at the center of the galaxy, were respectively less than 10,000. Light year Of the room breathing between them made them closer to each other. worldThe sun is in the center of the Milky Way. (About 26,000 light years away)
To the ground-based telescopes, the quasar̵7;s neighbors look like one object, and one day, with a non-stop galactic collision indoors, they will become one.
Related: The oldest known quasar of the universe, discovered 13 billion light-years away.
This is not the first pair of quasars that astronomers have ever detected. According to the study authors, there have been more than 100 findings to date. The ancient pair of lights, however, is the oldest known pair of quasars in the known universe. And in fact it is not alone. In the same study, published April 1 in the journal. Natural astronomyResearchers report the detection of a second pair of quasars, aged 10 billion years ago.
“We estimate that in a distant universe for every 1,000 quasars there is a pair of quasars,” said Yue Shen, lead author of the study at the University of Illinois at Urbana-Champaign. Said in a statementSo searching for this pair of quasars is like finding a needle in a haystack. “
For the new study, researchers carefully selected the straw. The team has focused their search on the distant universe because star formation was thought to peak in the universe about 10 billion years ago, and galactic integration is very common. up These mergers lead to massive amounts of matter into a black hole lurking in the galaxy’s core. When the black holes absorb matter at near-light speeds, they emit overwhelming rays, forming quasars.
Quasars can shed light on large galaxies, although their brightness may fluctuate every few days, weeks or months depending on how much matter they swallowed at that time. Due to this finicky dining table, the double quasar may seem “jerky” when one member of the couple lights up or diminishes while the other remains motionless. With the help of the Gaia Space Observatory and the Sloan Digital Sky observations, the study authors targeted multiple twitching quasars in the distant universe and then zoomed in with the Hubble telescope.
These flicker light sources turn into ancient twin quasars, which inevitably flash into the collision.
According to the researchers, studying quasars could help them understand the nuances of galactic formation and destruction. As quasars grow, their radiation can generate powerful winds that may eventually carry all of the star-forming gas. When this gas is depleted, star formation ends and the quasar-bearing galaxies enter their early retirement, waiting for all of their old stars to expire and fade away.
“Quasars make a big impact on the formation of galaxies in the universe,” study co-author Nadia Zakamska of Johns Hopkins University in Baltimore, Maryland, said in a statement. “The search for this early pair of quasars is important because we can now test our long-standing idea of how black holes and host galaxies evolve together.”
Originally published in Live Science.