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FP TrendsApril 17, 2020 4:15:33 PM IST
Albert Einstein’s general theory of relativity has reappeared in the news as astronomers have discovered a star’s behavior in line with the theory.
A study published in the journal Astronomy & Astrophysics has revealed that the star was found orbiting a black hole at the center of the Milky Way galaxy.
Investigators have said that during their observation they saw the star trace a rosette-shaped orbit around the black hole.
His observation showed that Isaac Netwon’s theory of gravity was not correct in this case, as it suggested that a star’s orbit would be elliptical. It was Einstein who had correctly predicted the way.
Observations made with ESO’s Very Large Telescope (VLT) have revealed for the first time that a star orbiting the supermassive black hole at the center of the Milky Way galaxy moves as predicted by Einstein’s general theory of relativity. Image: ESO
Theory of relativity, which was published in 1915, has helped scientists understand the forces of gravity.
The study was carried out by the European Southern Observatory (ESO) scientists using ESO’s Very Large Telescope, which is located on top of a mountain almost 2,700 meters above sea level in the Atacama desert in Chile. The low humidity of the region and the smooth air flow helped astronomers obtain clear visibility of the telescope.
“Einstein’s General Relativity predicts that the attached orbits of one object around another are not closed, as in Newtonian gravity, but move forward in the plane of motion. This famous effect, first seen in the orbit of the planet Mercury around the Sun, was the first evidence in favor of General Relativity, “says Reinhard Genzel, Director of the Max Planck Institute for Extraterrestrial Physics (MPE) in Garching, Germany.
The research also points to the existence of a black hole called Sagittarius A *, which is believed to be 4 million times the mass of the sun and 26,000 light years from it.
ESO, in a statement, said“This long-sought result was made possible by the giant’s mysteries lurking ever more precise measurements for nearly 30 years, which has enabled scientists to unlock the heart of our galaxy.”
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