The second time to detect gravitational waves

The groundbreaking discovery of gravitational waves, ripples in space and time predicted by Albert Einstein 100 years ago, published in February this year is not a blessing. Yesterday, June 15, scientists said the second time they had discovered gravitational waves.

According to Reuters news agency, the researchers said they detected gravitational waves sweeping through the Earth after two distant black holes twisted together and merged into a larger abyss 1.4 billion years ago. Previous long-lasting collision created spacetime resonance - an integration of concepts of time and three-dimensional space.

These attractive waves were recorded by the American observatory at the end of December 25, 2015. Detectors are located in Livingston, Louisiana, and Hanford, Washington.

The first time the gravitational wave was detected in September and announced on February 11, 2016. It created a scientific phenomenon and was a benchmark in physics and astronomy, turning the odd meaning of Einstein's gravitational theory in 1916 into observing astronomy.

Computer simulation of two black holes merging into one.

The waves detected in September and December of last year were triggered by the merger of black holes - an area in space-time that gravitational fields prevent everything, including light, too. exit.

The merging of black holes led to much smaller gravitational waves in December than it was for the first time, showing the sensitivity of the LIGO observer (gravitational wave observatory by laser interferometer is an animal experiment. Large-scale physics for direct detection of gravitational waves) has only recently been upgraded.

Massachusetts Institute of Technology researcher David Shoemaker says we're starting to get a glimpse of new types of astrophysical information that can only come from gravitational wave detectors.

The two black holes that activate the gravitational wave detect larger than 8 and 14 times the sun before entering as a spinning black hole about 21 times larger than the sun. The equivalent mass value of a sun is converted into gravitational energy.

Location Louisiana detects the first gravitational wave and Washington state detector records 1.1 milliseconds later. Scientists can use the time difference to roughly calculate where the merger of black holes occurs.

Scientists say the second wave of gravitational waves confirms that pairs of black holes are quite common.

"Now we can detect gravitational waves, they will be a new source of information about our galaxy and a whole new channel of discoveries about the universe," astrophysicist Chad Hanna of Pennsylvania State University said.

This study will be published in Physical Review Letters.