Massive black hole reveals when the first stars blinked on

Massive black hole reveals when the first stars blinked on

Massive black hole reveals when the first stars blinked on

The unexpected discovery lends support to an idea put forth by some astronomers, including Dr. Priyamvada Natarajan, a professor of astronomy and physics at Yale University in New Haven, Connecticut.

A team led by Eduardo Bañados, an astronomer at the Carnegie Institution for Science in Pasadena, found the new black hole by searching through old data for objects with the right color to be ultradistant quasars - the visible signatures of supermassive black holes swallowing gas. The newly discovered quasar shines as brightly as 40 trillion suns. In this approach, collapsing clouds in the early universe gave birth to overgrown baby black holes that weighed thousands or tens of thousands of solar masses.

It would be like seeing photos of a 50-year-old man when he was 2 1/2 years old, according to Banados. As the universe rapidly expanded, these particles cooled and coalesced into neutral hydrogen gas during an era that is sometimes referred to as the dark ages - a period bereft of any sources of light.

Astrophysicists suggest that the holes were formed at the very moment when the universe expanded a fundamental shift - moving from an opaque environment, which was dominated by neutral hydrogen, the one in which began to appear the first stars. The timing and specifics of this cosmic reionization are still an open question. She was very interested in scientists, as it refers to the early period after origination of the Universe. The earliest known quasar is located 13.04 billion light years from Earth and existed about 750 million years after the Big Bang.

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Quasars as young as this one also yield valuable information about galaxy evolution. Scientists have now found a super-sized black hole. What's extraordinary about this black hole, aside from its massive size, is that its discovery will help scientists comprehend the processes of their growth during the time the universe was still forming.

The three main ideas of how supermassive black holes form are: 1) from the collapse of enormous clouds of gas, which also form the galaxy around the black hole, 2) from stellar black holes (ones that form due to the collapse of massive stars) that gather even more matter to them over millions of years, or 3) due to the merger of multiple black holes.

"Models of galaxy evolution will need to be able to explain how a galaxy could form the stars needed to produce the observed amounts of dust and heavier chemical elements in such a comparatively short time", Venemans said. Based on the quasar's redshift, the researchers calculated the mass of the black hole at its center and determined that it is around 800 million times the mass of the sun.

Schematic representation at top of page of the look back into history that is possible by the discovery of the most distant quasar yet known. That's far bigger than any we know today.

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