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The Mystery of the Missing Supermassive Black Hole Has Deepened!
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Nearly every massive galaxy contains a supermassive black hole at its center. But when scientists looked at the heart of Abell 2261-BCG, they were shocked. Its black hole, expected to be about 100 billion times the Sun's mass, was missing. Since even light cannot escape through a black hole, astronomers can't observe them directly. Astronomers locate black holes by monitoring the motion of the stars next to them. Another way is to look for bright X-Ray sparks that result from the material that black holes draw in towards them, a process called accretion.
NASA first used the Chandra X-ray Telescope to observe this galaxy. Chandra found that the densest gas of the galaxy was not at the center. Subsequent radio emissions showed signs of black hole activity 50 million years ago. But, they didn't indicate that the center of the galaxy currently contains such a black hole. After failing to observe the supermassive black holes directly, scientists have come up with explanations.
When two black holes merge, they produce ripples in spacetime called gravitational waves. If the number of gravitational waves produced is stronger in one direction than another, Then, the resultant massive black hole moves away from the center of the galaxy in the opposite direction. This black hole is called a recoiling black hole. The scientists believe that a similar event might have taken place in Abell 2261-BCG. The new hopes now rely on the launch of the James Webb Space Telescope.
NASA first used the Chandra X-ray Telescope to observe this galaxy. Chandra found that the densest gas of the galaxy was not at the center. Subsequent radio emissions showed signs of black hole activity 50 million years ago. But, they didn't indicate that the center of the galaxy currently contains such a black hole. After failing to observe the supermassive black holes directly, scientists have come up with explanations.
When two black holes merge, they produce ripples in spacetime called gravitational waves. If the number of gravitational waves produced is stronger in one direction than another, Then, the resultant massive black hole moves away from the center of the galaxy in the opposite direction. This black hole is called a recoiling black hole. The scientists believe that a similar event might have taken place in Abell 2261-BCG. The new hopes now rely on the launch of the James Webb Space Telescope.
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