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posted by martyb on Thursday September 28 2017, @04:56AM   Printer-friendly
from the That's-heavy,-man! dept.

For the first time three gravitational wave detectors have recorded the same event. The detection was made by both LIGO and Advanced Virgo (which has just recently begun collecting data for the first time). From the news release:

The LIGO Scientific Collaboration and the Virgo collaboration report the first joint detection of gravitational waves with both the LIGO and Virgo detectors. This is the fourth announced detection of a binary black hole system and the first significant gravitational-wave signal recorded by the Virgo detector, and highlights the scientific potential of a three-detector network of gravitational-wave detectors.

The three-detector observation was made on August 14, 2017 at 10:30:43 UTC. The two Laser Interferometer Gravitational-Wave Observatory (LIGO) detectors, located in Livingston, Louisiana, and Hanford, Washington, and funded by the National Science Foundation (NSF), and the Virgo detector, located near Pisa, Italy, detected a transient gravitational-wave signal produced by the coalescence of two stellar mass black holes.

A paper about the event, known as GW170814, has been accepted for publication in the journal Physical Review Letters.


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  • (Score: 2, Informative) by Anonymous Coward on Thursday September 28 2017, @12:47PM

    by Anonymous Coward on Thursday September 28 2017, @12:47PM (#574323)

    No, the observable universe [wikipedia.org] is a sphere around Earth with a radius of 46 billion light years. Even the age of the universe is estimated to be 13.799 billion years, which is more than the number of light years for the listed Schwarzschild Radius.

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