A new inspection reveals new details about the first black hole ever discovered-the black hole was discovered in 1964 and became the subject of friendly bets among prominent scientists-including larger than previously known.
Researchers said on Thursday that new observations of the black hole in Cygnus X-1 are that it forms a stellar marriage with a huge luminous star that is 21 times the mass of our sun and 50% larger than previously thought.
Although it is still one of the most famous black holes, they found that it is 7200 light-years away from the Earth, which is 5.9 trillion miles (9.5 trillion kilometers) a year from the Earth a bit farther than previously calculated.
Black holes are very dense and gravitational, so it is difficult to escape even without light. Some of them-“supermassive” black holes-are large, such as the solar hole at the center of the Milky Way galaxy that is four million times the mass of the sun. The smaller “stellar mass” black hole has the mass of a single star.
Astronomer James Miller Jones of Curtin University and the Australian International Radio Astronomy Research Centre said that Cygnus X-1 is the most famous black hole of stellar mass in the Milky Way and one of the strongest X-ray sources seen from the earth. . The research was published in the journal Science.
Miller-Jones added that the black hole was spinning so fast, almost reaching the speed of light, that it reached the maximum speed envisioned by the physicist Albert Einstein’s general theory of relativity.
It has swallowed the material blown out from the surface of its orbiting companion star, which is a kind of “blue giant”, about 40 times the mass of our sun. It began to exist between 4 million and 5 million years ago. Its star is 75 times the mass of the sun and collapsed into a black hole tens of thousands of years ago.
The study includes data from the Very Long Baseline Array radio telescope, which includes 10 U.S. observatories.
After Cygnus X-1 was first marked as a black hole, physicists Stephen Hawking (bet 1) and Kip Thorne placed bets. Horne eventually admitted that he owed Thorne’s “Loft” magazine.
Miller Jones said: “Actually, I don’t have any bets on these discoveries.”
Thomson Reuters 2021 ©
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