Showing posts with the label stars

Blackhole System, Closest to Earth, Has No Black Hole, Shows Recent Study

Image credit: ESO According to a new study, the closest black hole system (HR 6819) to Earth , about 1,000 light-years away, has no black holes. The system was first discovered in 2020. Back then, two theories were proposed, one with the presence of a black hole and one with its absence. However, a recent study by researchers at KU Leuven University, Belgium , took the initiative to find which of the two theories is correct. They used instruments such as the European Southern Observatory Very Large Telescope (ESO, VLT) and the VLT interferometer to get decisive data to differentiate between two theories. All the evidence reported the presence of a 'vampire star system' in which two stars orbit very closely and one star out of the two feasts on another. There was no sign of a distant orbiting star that would be needed for the black hole theory. “Not only is it normal, but it should be that results are scrutinised,” said Thomas Rivinius , a Chile-based ESO astronomer and lead aut

The Rotation Axis of a Black Hole Is Tilted More Than 40 Degrees in a Binary Star System Find Finn Researchers

  Image credit:  Pixabay The researchers at the  University of Turku, Finland,  have found that the rotation axis of a black hole in a binary star system is tilted more than 40 degrees relative to the stellar orbit axis (stars' rotation axis).  A binary  star  system consists of two stars held together by gravitational force. This force makes the stars orbit around each other at a common center. When a black hole passes through a binary system, a force of attraction is established that tilts the rotation axis of the black hole. This observation by the researchers is the first reliable evidence that shows a huge difference between the axis of a binary system orbit and the axis of rotation of a black hole. This discovery can challenge current black hole formation theories and models. "The expectation of alignment, to a large degree, does not hold for the bizarre objects such as black hole X-ray binaries. The black holes in these systems were formed as a result of a cosmic catacl

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