Gravitational Waves

The Glory Holes

Gravitational WavesFirst time black holes, binary black hole systems merging and Gravity Waves directly observed … through reverse engineering and predetermined results/theories?

These were detected with the twin Laser Interferometer Gravitational-wave Observatory (LIGO) project.

Prof Stephen Hawking, who is an expert on black holes … This discovery is the first detection of a black hole binary system and the first observation of black holes merging,” he said.
Einstein’s gravitational waves ‘seen’ from black holes | BBC

“Now that we have the detectors to see these systems, now that we know binary black holes are out there – we’ll begin listening to the Universe. ”
Einstein’s gravitational waves ‘seen’ from black holes | BBC

This observation is truly incredible science and marks three milestones for physics: the direct detection of gravitational waves, the first observation of a binary black hole, and the most convincing evidence to-date that Nature’s black holes are the objects predicted by Einstein’s theory.
Prof Alberto Vecchio | BBC

Taylor, an astrophysicist at Princeton University, using the example of black holes.”We’ve suspected these things probably exist, and we’ve seen the evidence for black holes in the centers of galaxies, and now we’re going to have some direct way of measuring them that is quite different from that.”
Found! Gravitational Waves, or a Wrinkle in Spacetime | National Geographic

Gravitational Waves

What we know about black hole pairs so far comes from the study of the stars orbiting around them. These binary systems typically have black holes with masses five to 20 times that of the sun. But LIGO has seen two black holes with about 30 times the mass of the sun in a binary system that has finally merged. This is remarkable for several reasons. It is the first detection of two merging black holes, it is at a much greater distance than LIGO expected to find sources, and the total mass in the system is also much larger than expected.
Gravitational Waves Discovered: Top Scientists Respond

Gravitational waves are a new way to study notoriously difficult things to observe like black holes and neutron stars. Black holes emit no light at all, and their characteristics and properties are inferred from cause and effect relationships with objects near them.
Gravitational Waves Discovered: A New Window on the Universe | Universe Today

Black holes, the even-more-extreme remains of dead stars, could be expected to do the same, but nobody knew if they existed in pairs or how often they might collide. If they did, however, the waves from the collision would be far louder and lower pitched than those from neutron stars.

Astronomers now know that pairs of black holes do exist in the universe, and they are rushing to explain how they got so big. According to Vicky Kalogera of Northwestern University, there are two contenders right now: Earlier in the universe, stars lacking elements heavier than helium could have grown to galumphing sizes and then collapsed straight into black holes without the fireworks of a supernova explosion, the method by which other stars say goodbye. Or it could be that in the dense gatherings of stars known as globular clusters, black holes sink to the center and merge.
Gravitational Waves Detected, Confirming Einstein’s Theory | The New York Times