[▲ Quasar “2M1310-1714” affected by gravitational lens effect (Credit: ESA / Hubble &; NASA, T. Treu, Acknowledgment: J. Schmidt)]
This is“Hubble”A corner of “Virgo” taken by the Space Telescope.Lined up vertically and glowing dimlyTwo light spotsAnd shines around it4 light spotsIs visible in the center of the image.According to the European Space Agency (ESA), the four light spots were originally「2M1310-1714」CalledOne quasarCan be seen side by side in the center“Gravitational lens” effect brought about by two galaxiesByThe statue looks split
It seems to.
*… An active galactic nucleus that shines brighter than the entire galaxy (the central part of a galaxy that emits strong electromagnetic waves from a narrow area).Gravitational lens effectIs a phenomenon in which an image of a celestial body in the distance looks distorted by the gravity of the celestial body in the foreground. in this case,Quasar about 10 billion light-years awayThe direction of the light emitted fromGravity of two galaxies located between Earth (about 3 billion light-years away)By being bent byIt looks like a split statue from the earth
That’s why.According to ESA, Hubble’s observational dataThe statue of the quasar “2M1310-1714” is split into five instead of fourIt is said to indicate that. The fifth dark statue is said to be located right in the middle,A rare phenomenon caused by two galaxies acting as lenses
The mechanism by which the “Einstein Cross” is created by the gravitational lens effect. A split image is observed from the earth by bending the direction of the light emitted from the quasar by the gravity of the galaxy (Credit: R. Hurt (IPAC / Caltech) / The GraL Collaboration. )
[▲ The mechanism by which the “Einstein Cross” is created by the gravitational lens effect. A split image is observed from the earth by bending the direction of the light emitted from the quasar by the gravity of the galaxy (Credit: R. Hurt (IPAC / Caltech) / The GraL Collaboration. )]The gravitational lens effect is a phenomenon whose existence was predicted by Albert Einstein’s general theory of relativity.“Einstein Ring”, What appears to be a cross-shaped statue“Einstein Cross”
Sometimes called.The image at the beginning was created based on the optical and infrared observation data of the Hubble Space Telescope’s “Wide Field Camera 3 (WFC3)”, and is one of the Hubble Space Telescope’s this week.「Seeing Quintuple」
Enlarged image near the center of the opening image (Credit: ESA / Hubble & NASA, T. Treu, Acknowledgment: J. Schmidt)
[▲ Enlarged image near the center of the opening image (Credit: ESA / Hubble & NASA, T. Treu, Acknowledgment: J. Schmidt)]
Image Credit: ESA / Hubble & NASA, T. Treu
Acknowledgment: J. Schmidt
Source: ESA/Hubble / EPFL
Sentence / Takehiro Matsumura
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