There is a black hole located in the area of the swan constellation in the sky from the Earth's surface, known as Cygnus X-1, it was first estimated that it is about 6,070 light years away from our solar system, its mass is its mass in the sun. Is 14.8 times its mass. But new research suggests that Cygnus X-1 is about 7,200 light years away from Earth, implying that the star in Cygnus X-1 is also brighter, and therefore astronomers believe, Cygnus X-1 Too big.
If a star near Cygnus X-1 weighs about 40.6 suns, as researchers had estimated, a black hole would have to be more massive to explain its gravitational tug on such a massive star. Scientists say the black hole weighs about 21.2 suns - much higher than the previously estimated 14.8 solar masses.
According to an online report by astronomers on February 18, if the star-shaped or stellar in the Milky Way is large enough for a black hole, its parent star must have less mass through stellar winds.
It is important for us to know how much the stars near black holes lose their mass through stellar winds during their lifetime, it is important to understand how these stars enrich their surroundings with heavy elements. It is important for us to understand the mass and composition of stars, when they explode, and leave behind black holes.
University of Amsterdam Astronomy The updated, large-scale measurement of the Cygnus X-1, says Tana Joseph, "is a major change to an old favorite. Stephen Hawking told the famous physical physicist Kip Thorne, that the Cygnus X-1 system, called 1964 , It was not a black hole - and accepted the stakes in 1990, when scientists broadly accepted that Cygnus X-1 was the first known black hole.
When astronomers used the VLBA or the much longer Cygnus baseline array, they got a facelift in Cygnus X-1. In 2016, astronomers tracked the Cygnus X-1 black hole for 6 days using the VLBA (the time it took for the black hole and its companion stars to orbit each other). Those observations offered a clear view of how the position of a black hole in space shifted during its orbit.
The new mass measurement for Cygnus X-1's black hole is such a big problem, says Cothor Ilya Mandel, an astrophysicist at Monash University in Melbourne, Australia, that challenging the understanding of stars to create massive black holes Gives.
Kothor Ilya Mandel states, "Sometimes stars are born with a very high mass, - it contains observations of stars born with a mass of 100 solar masses, but turning such massive stars into black holes Before it is thought to reduce its weight through stellar winds. Astronomers say that the larger the star and the heavier the elements, the stronger its stellar winds. The larger element-rich galaxies like the Milky Way, Large stars - regardless of their initial mass - are believed to shrink to about 15 solar masses before collapsing into a black hole.
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