gravitational waves back to hunting. After a series of upgrades, laser interferometer gravitational wave observatory of the National Science Foundation (LIGO) will resume its search for ripples in space and time in the Monday, April 1.
LIGO known for creating the first direct detection of gravitational waves in 2015, for which the founders of the Observatory were awarded the Nobel Prize. Observatory was able to detect gravitational waves generated by two colliding black holes, which were located 1.3 billion light-years from Earth, and since then there has nine black holes merge, and one collision of two neutron stars.
Gravitational waves ripple in the space-time fabric caused massive bodies, to bend it as the bowling ball disposed on the rubber sheet. They were predicted by Einstein as part of his general theory of relativity in 1916, but it took almost a century for them to perform physics, because the effects are so small. Since these waves have been detected, they can be used for the study of cosmic objects & # 39 as an alternative to light telescopes.
Now the team hopes to explore in the LIGO gravitational wave in greater depth, using the observatory, which has been processed for the upgraded lasers, mirrors and other components, which enable it to begin its longest and most sensitive observation run so far. They will look at a black hole mergers, as well as search for other extreme with a & # 39; ads, as a merger of two neutron stars or black hole merger between one and one neutron star.
As well as these large and powerful event, researchers will also look weaker but continuous signals, such as those highlighted rotating neutron star. It may be possible to detect the gravitational waves, looking at data collected over a long period of time.
"As someone who studies the continuous wave, improved sensitivity and the longer observation of the launch means that we can explore our resources in a more interesting way," John Wiley, associate professor at Rochester Institute of Technology and head of the group in the LIGO Scientific Cooperation, said in a statement . His team examines Scorpius X-1, a perspective of the continuous source of gravitational waves. "This is the brightest continuous source of X-rays, in addition to the sun," Whelan explained, "and it is a binary system of neutron stars and even less massive stars."
Updates LIGO should allow researchers to find more gravitational waves from different sources, seeing events on average, 550 million light-years, or more than 190 million light-years farther than before. Calum Torah Mechanics and optical engineering head Lih at Caltech, proud achievement already: "One of the things that satisfy us engineers, knowing that all our updates mean that the current LIGO can see farther into space to find the most extreme with & # 39; make known in our universe, "he said.