Tech & Science: Astronomers spot a trio of black holes on a devastating collision course - - PressFrom - United Kingdom
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Tech & Science Astronomers spot a trio of black holes on a devastating collision course

17:50  27 september  2019
17:50  27 september  2019 Source:   bgr.com

Astronomers Just Found an Absolutely Gargantuan Black Hole The Mass of 40 Billion Suns

Astronomers Just Found an Absolutely Gargantuan Black Hole The Mass of 40 Billion Suns Black holes can get pretty big, but there's a special class that is the biggest of the big, absolute yawning monster black holes. And astronomers seem to have found an absolute specimen, clocking in at 40 billion times the mass of the Sun. It's at the centre of a galaxy called Holmberg 15A, a supergiant elliptical galaxy around 700 million light-years away, which in turn sits at the centre of the Abell 85 galaxy cluster. The object is one of the biggest black holes ever found, and the biggest found by tracking the movement of the stars around it.

Black holes are one of the most interesting features of our universe. So incredibly dense that their gravitational pull can swallow up light itself, they are Our home galaxy, the Milky Way, is believed to be on a similar collision course with the neighboring Andromeda galaxy, though it will take several

Astronomers have discovered a distant pair of titanic black holes on a collision course . Each black hole ’s mass is more than 800 million times that of our sun. As the two gradually draw closer together in a death spiral, they will begin sending gravitational waves rippling through space-time.

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Black holes are one of the most interesting features of our universe. So incredibly dense that their gravitational pull can swallow up light itself, they are enormously powerful on their own, but when three of them get together? Well, that’s a recipe for some serious fireworks.

As NASA’s Jet Propulsion Laboratory explains in a new post, astronomers using powerful imaging hardware, including three of NASA’s own telescopes, have spotted a trio of black holes in the midst of a cosmic dance. The holes were spotted in a distant galactic collision that could offer hints at the fate that awaits our own Milky Way.

Astronomers probably just saw a black hole swallow a dead star

Astronomers probably just saw a black hole swallow a dead star Ripples in the fabric of spacetime reveal what may be a first-of-its-kind cosmic collision.

Astronomers have spotted three giant black holes within a titanic collision of three galaxies. Several observatories, including the Chandra X-ray "We were only looking for pairs of black holes at the time, and yet, through our selection technique, we stumbled upon this amazing system," said Ryan

When the black holes finally meet, nobody knows what will happen, and astronomers can only guess what the result might be. When galaxies collide , the black holes at their hearts begin a dance that lasts a very, very long time. For all the advances in astronomy in mankind’s history, scientists are still

Black holes are thought to exist at the center of most galaxies, and supermassive black holes are the largest and most powerful variety. It’s believed that a supermassive black hole rests at the heart of our own galaxy, but the system known as SDSS J084905.51+111447.2 has not one, not two, but three such black holes, making it an incredible oddity.

To make their discovery, a team of astronomers relied on several different imaging techniques including infrared, X-ray, and optical sensors. Combining all of these observations allowed the scientists to spot the black hole group, and the team describes its findings in a new paper published in The Astrophysical Journal.

As it appears right now, the system is thought to be the result of an ongoing galaxy merger, with the trio of black holes all carrying their own galaxies into the fray. Our home galaxy, the Milky Way, is believed to be on a similar collision course with the neighboring Andromeda galaxy, though it will take several billion years before that occurs.

“We were only looking for pairs of black holes at the time, and yet, through our selection technique, we stumbled upon this amazing system,” Ryan Pfeifle, first author of the study, said in a statement. “This is the strongest evidence yet found for such a triple system of actively feeding supermassive black holes.”

Cyclist tragically dies after crash with lorry in Dublin city .
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