tech2 news staff
Jan 14, 2019 18:04 IST
For us on Earth, the brightest object in the sky is undoubtedly the Sun. But this fiery ball of light contrasts with the quasars: giant and luminous nuclei of galaxies that radiate massive amounts of energy.
Astronomers believe that quasars are very similar to monstrously hungry black holes in the center of young galaxies. The brightness they emit comes from energy explosions when the objects rise and fall into the gravitational whirlwind of the quasars, warming up at temperatures of millions of hot grades in the process.
It was thought that the Quasars were much more abundant in the universe about 10,000 million years ago, making them an object of great interest to astronomers studying the early evolution of our cosmos.
According to the researchers, the recently discovered quasar was active when the universe had less than one billion age years, when the first of the universe galaxies was formed.
12.8 million years later, the Hubble telescope picked up the bright light of the object – 600 billion times more bright than our Sun. This exceeds the last record of this quasar, which was equal to the brilliance of only 420 billion suns.
The team of researchers from the University of Arizona posted his findings a Periodic astronomical letters.
"We do not expect to find much brighter quasars than in the observable universe". finger Xiaohui Fan, principal researcher at the university press.
How could such bright telescopes actively search for these phenomena? In short, the quasar is almost a universe beyond: 12.8 trillion light years. In fact, it was only seen due to a rare physical phenomenon called gravitational lenses & # 39;
The gravitational forces that are very strong have the power to literally "flex" the path of light that goes through them. In the case of the recently discovered quasar, the light of the quasar was deformed approximately halfway between the quasar and the Earth.
This process intensified the intensity of quasar fifty times and also divided the image of the quasar, so that it was visible in three different points of the space at a time.
Without this high level of extension, it would make it impossible for us to see the galaxy, said Feige Wang, another member of the team, at university press.
"We believe that there may be between 10 and 20 objects of this type that we have not found because they would have seemed blurry and the colors did not change color," Fan said. "This means that our traditional way of finding quasars may no longer work, and we have to find a new and large data approach to expand the search."
The quasar was first detected by a terrestrial telescope called the Multi-Mirror Observatory in Arizona, after that, the objects detected in the Pan-STARRS1 file data in Hawaii were also scanned. infrared hemisphere survey of the United Kingdom and the WISE telescope in orbit.
Finally, Hubble confirmed it as a quasar that suffered a "slowness" for the courtesy of the clearest view that you get from the space.
Tech2 is now in WhatsApp. For all fans about the latest technology and science, sign up for our WhatsApp services. Access Tech2.com/Whatsapp and press the Subscribe button.