U.S. scientists have built two huge Laser Interferometer Gravitational Wave Observatory, in June this year completed the upgrade, be able to observe celestial event 88 million light-years away.
Louisiana and Washington state have a gravitational wave observatory, a long structure is the interferometric arm, can be found in hundreds of millions of light years away in the black hole merger
According to foreign media reports, the American scientists in Louisiana and Washington State built two huge Laser Interferometer Gravitational Wave Observatory, the main principle of using an interferometer to measure the gravitational waves in the universe, the first generation of Laser Interferometer Gravitational Wave Observatory in 2001 to 2010 carried out scientific experiments, but did not find any signal about gravitational waves. Over the past four years, scientists have tried to upgrade the Laser Interferometer Gravitational Wave Observatory, making it a more sensitive detector, completed in June of this year, ahead of schedule the. According to the report the researchers, the laser interferometer gravitational waves upgraded Observatory will begin scanning the universe, higher accuracy in the summer of 2015.
Professor of Physics and Astronomy from the University of Birmingham in June Andreas think this year we reached the state after the upgrade, we called it “lock” the entire time observing system is running very short, only about 10 minutes or so This process is designed to test some of the test mode the system is capable of. Gravitational waves like a shock after the universe formed celestial collision in space, which comes from a very violent collision and some of the celestial objects with black holes related behaviors, such as supernovae, rapidly rotating neutron stars, black holes merge between so .
With the Laser Interferometer Gravitational Wave Observatory accuracy of continuous improvement, the system should be able to detect the behavior of neutron stars and black holes celestial system consisting of generation, scientists currently aligned with the Laser Interferometer Gravitational Wave Observatory binary star system 88 million light years away to study, hoping to detect the signal of gravitational waves. Currently researchers are still within the gravitational wave observatory complex optical system for observation and gradually improve the observation accuracy of gravitational wave observatory. Professor Andreas think our goal is to then be able to improve more than seven times the observation, which is equivalent to a cosmic event can be observed 600 million light years away.
Laser Interferometer Gravitational Wave Observatory future will continue to upgrade, at least to observe celestial event 30 billion light years away, which means that the size of the observatory on expanding interferometric arm needs to be improved. In addition, the scientists also hope to use the high-power laser embedded splitter, the beam is divided into two sections, perpendicular to each other via two 4 km long tunnel, when gravitational waves reach Earth, we can find traces by interferometry .