Japanese study found that gravitational lensing supernova brightness up to 30 times

Announced that the latest research results Kavli Institute of Cosmic Physics and Mathematics , University of Tokyo , Japan , said in a gravitational lensing effect can be observed usually reach 30 times the brightness of the supernova .

Japanese study found that gravitational lensing supernova brightness up to 30 times
The study found gravitational lensing supernova brightness of up to 30 times

NEW YORK, April 29 reported that the University of Tokyo, Japan Kavli Institute of Cosmic Physics and Mathematics , said the latest research published in the gravitational lensing effect can be observed usually reach 30 times the brightness of the supernova .

Gravitational lensing is when the background light emitted by the light in the gravitational field ( galaxies, clusters of galaxies and black holes , etc. ) through the neighborhood , the light will bend like through the same lens . The degree of bending of light depends primarily on the strength of the gravitational field . Distort the analysis of background light , as the nature of the study could help in the middle “lens” of the gravitational field . According to the different strength of gravitational lensing can be divided into strong and weak gravitational lensing gravitational lensing .

Kavli Institute of Cosmic Physics and Mathematics , University of Tokyo , said the general gravitational lensing effect with a magnifying glass , you can light from the supernova more gathered around the Earth , so that the observed brightness of the supernova brighter .

Extraordinary Fellow of the institution’s Robert ? Quimby (Robert Quimby) and others research team observed , apart Earth supernova brightness 9 billion light-years far beyond their normal value. Is a violent supernova explosion of a star like the sun at the time of approaching the final experience . Such explosions are extremely bright, burst in the process of electromagnetic radiation can often illuminate it in the entire galaxy , and sustainable several weeks to several months will gradually decay becomes invisible . Its scale explosion can be roughly calculated its proper brightness , but with the observed brightness far apart.

Initially there are suggestions that it belongs to a new type of supernova , but Robert ? Quimby detailed investigation where the research team found that between the Earth and the existence of galactic supernova and produce a gravitational lensing . It is reported that the Galaxy 8 billion light-years from Earth , the supernova 1 billion light years away .

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