A double quasar, sometimes called a twin quasar, isn't two quasars close to each other, but rather an effect of gravitational lensing. With a double quasar, their light is lensed around an intervening galaxy before reaching Earth, producing two images of the quasar.
A double quasar image refers to the phenomenon where two quasars appear as a pair, closely aligned in the sky. Quasars are extremely bright and distant celestial objects that emit massive amounts of energy, primarily in the form of light. They are believed to be powered by supermassive black holes at the centers of galaxies.
When a pair of quasars are gravitationally lensed, their light is bent and distorted by the gravitational pull of a massive object, such as a galaxy or galaxy cluster, located between the quasars and the observer. This gravitational lensing effect can create multiple images of the same quasar, resulting in a double quasar image.
Double quasar images are interesting to astronomers because they provide valuable insights into the distribution and nature of dark matter, as well as the gravitational lensing phenomenon itself. They also help astronomers study the large-scale structure of the universe and investigate the properties of galaxies and galaxy clusters that act as gravitational lenses.
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A double quasar, sometimes called a twin quasar, isn't two quasars close to each other, but rather an effect of gravitational lensing. With a double quasar, their light is lensed around an intervening galaxy before reaching Earth, producing two images of the quasar.
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A double quasar image refers to the phenomenon where two quasars appear as a pair, closely aligned in the sky. Quasars are extremely bright and distant celestial objects that emit massive amounts of energy, primarily in the form of light. They are believed to be powered by supermassive black holes at the centers of galaxies.
When a pair of quasars are gravitationally lensed, their light is bent and distorted by the gravitational pull of a massive object, such as a galaxy or galaxy cluster, located between the quasars and the observer. This gravitational lensing effect can create multiple images of the same quasar, resulting in a double quasar image.
Double quasar images are interesting to astronomers because they provide valuable insights into the distribution and nature of dark matter, as well as the gravitational lensing phenomenon itself. They also help astronomers study the large-scale structure of the universe and investigate the properties of galaxies and galaxy clusters that act as gravitational lenses.
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