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 .
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 .
