LIGO makes third gravitational wave detection

The gravitational wave detection was “the first time, a chance event; second time, a coincidence, and third, a pattern,” says Bangalore Sathyaprakash, a senior scientist with the LIGO collaboration.

The Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors in the U.S. have detected yet another merger of two black holes on January 4, 2017. Named GW170104, this signal marks the third confirmed detection of gravitational waves coming from a binary black hole merger. It is of great interest to the scientific community that the black holes, having masses nearly 31 times and 19 times the sun’s. Until the first detection of gravitational waves by LIGO in 2015 (GW150914) it was not known that such massive black holes could exist.

The gravitational wave detection was “the first time, a chance event; second time, a coincidence, and third, a pattern,” says Bangalore Sathyaprakash, a senior scientist with the LIGO collaboration in the U.S. and an editor of the paper describing these results which was published in Physical Review Letters.

headlines_admin