Science

Cygnus X-1 contains a surprisingly massive black hole

The image below is an artist’s impression of the Cygnus X-1 system, which contains the largest stellar-mass black hole we have ever discovered without using gravitational waves. The system’s supermassive black hole is 21 times the mass of the sun. Cygnus X-1 is one of the closest black holes to Earth, first discovered in 1964.

Supermassive black hole Discover When a suborbital missile was launched from New Mexico with a pair of Geiger counters on board. Interestingly, this particular black hole was the focus of a bet between physicists Stephen Hawking and Cape Thorne in 1974. In this bet, Hawking put money on an object that is not a black hole and had to waive the bet in 1990. The last time by researching the hole Black, scientists used a very long baseline array, a huge radio telescope, with smart technology that measures distance in space.

The very long baseline matrix was chosen for the study because it is a massive radio telescope assembly the size of the continental United States of ten dishes spread across the country. The researchers on the project said that viewing the same object from different locations allows calculating the distance away from us by measuring the distance that the object appears to move relative to the background. Over the course of six days, the team observed an entire black hole’s orbit and also used data from observations from the same telescope assembly in 2011.

Using the new method and measurements, the team found that the system is farther than previously thought and that the black hole is much larger than expected. One researcher said that a black hole is so huge that it has been challenging theories about how black holes form. Cygnus X-1 began as a star roughly 60 times the mass of the Sun, and collapsed tens of thousands of years ago.

It orbits a companion star every five and a half days at one-fifth of the distance between the Earth and the sun. With the new measurements, researchers estimate that the black hole is more than 20 times the mass of the Sun, which is 50 percent more than previous estimates. The measurements also show that the black hole is spinning very close to the speed of light, faster than any other black hole discovered so far.

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