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The theory of general relativity, proposed by the theoretical physicist Albert Einstein more than 100 years ago, pbaded another test.
This time, astronomers have proved that general relativity is right by confirming the "gravitational redshift" where light is affected by gravity through the stars that pbad around black holes in the center of our galaxy.
A multinational research team led by the Max Planck Institute for Extraterrestrial Physics (MPE), based in Germany, says the S2 star is the center of our galaxy using the VLT of the world. European Southern Observatory. Astronomy and Astrophysics "in a recent issue of the scientific journal" Astronomy & Astrophysics ", when it pbades through a black hole called Sagittarius A *.
Gravitational redshifts occur when energy is lost when light comes out of a strong gravitational field, such as a black hole.
Sagittarius A * is a super mbad black hole with mbad of 4 million times the mbad, "It was a" perfect laboratory "for testing the effects of gravity, according to the researchers.
The S2 star is the closest to Sagittarius A * every 16 years around Sagittarius A *.
The research team observed the movement of S2 by time zone, and found that Sagittarius A * The phenomenon of red motion in which the wavelength of light is lengthened due to the Super-strong gravity of the light is confirmed.
The team calculated the speed and location of the S2 and compared them to predictions based on general relativity: "It was a perfect match," he said. said, "a breakthrough in understanding the impact of a strong gravitational field.
The European Southern Observatory said in a statement that "Einstein has proved once again that he is right with far more extreme experiences than he had imagined at the time. of his invention of the theory of general relativity more than 100 years ago. "
Paul Schuter, an astrophysicist from Ohio State University, said in an interview with the Associated Press: "Like other physicists around the world, I want to find errors in the theory of the relativity of Einstein, but he is ahead of us. " He was confirmed again, but he said, "I can not erase the feeling of hitting the back."
(Seoul = Yonhap News)
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