Astronomers have a new name for these sorts of flares from supermassive black holes in distant galaxies: they’re calling them quasi-periodic eruptions. “Giant black holes regularly flicker like a candle but the rapid, repeating changes seen in GSN 069 from December onwards are something completely new,” said one scientist. Source: https://earthsky.org/space/unexpected-periodic-flares-from-distant-galaxys-black-hole…
Tag: supermassive black hole
Scientists detect towering balloon-like feature near Milky Way’s center
It’s a huge bipolar structure, centered on the galactic center and near the central supermassive black hole. In that way, it’s like the Fermi Bubbles, found some years ago. But … there are differences. Source: https://earthsky.org/space/balloon-like-feature-near-milky-way-center…
There is a pair of weird, gigantic bubbles at the centre of our galaxy
There are strange bubbles of particles looming above and below the Milky Way, and they may have been blasted out by our galaxy’s supermassive black hole Source: https://www.newscientist.com/article/2216079-there-is-a-pair-of-weird-gigantic-bubbles-at-the-centre-of-our-galaxy/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Milky Way’s black hole has got 75 times brighter and we don’t know why
Astronomers were shocked to find the area around the supermassive black hole at the centre of the Milky Way growing 75 times brighter in just two hours Source: https://www.newscientist.com/article/2213058-milky-ways-black-hole-has-got-75-times-brighter-and-we-dont-know-why/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
The black hole disk that shouldn’t exist
Astronomers didn’t expect to see a thin disk around the supermassive black hole at the center of galaxy NGC 3147, some 130 million light-years away. They’re using Einstein’s theories of relativity to understand the velocities involved, and the intensity of black hole’s pull. Source: https://earthsky.org/space/black-hole-disk-shouldnt-exist-galaxy-ngc-3147…
Star Orbiting Massive Black Hole Lends Support To Einstein’s Theory
Observations of light coming from a star zipping in orbit around the humongous black hole at the center of our galaxy have provided fresh evidence backing Albert Einstein’s 1915 theory of general relativity, astronomers said on Thursday. From a report: Researchers studied a star called S0-2, boasting a mass roughly 10 times larger than the sun, as it travels in an…
Einstein’s Theory of Relativity Holds Up Around a Supermassive Black Hole
Astronomers have shown that Einstein’s ideas about the warping of space and time holds true as the best description yet of how gravity works. Source: https://www.livescience.com/66031-einstein-relativity-works-around-black-hole.html
Star hurtling around a giant black hole proves Einstein right – again
We watched a star orbit the supermassive black hole at the centre of our galaxy for 24 years and its light is stretched just as Einstein predicted it should be Source: https://www.newscientist.com/article/2211184-star-hurtling-around-a-giant-black-hole-proves-einstein-right-again/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Hubble discovers mysterious black hole disc
Astronomers using the NASA/ESA Hubble Space Telescope have observed an unexpected thin disc of material encircling a supermassive black hole at the heart of the spiral galaxy NGC 3147, located 130 million light-years away. Source: https://phys.org/news/2019-07-hubble-mysterious-black-hole-disc.html…
Powering the extreme jets of active galaxies
An active galaxy nucleus (AGN) contains a supermassive black hole that is vigorously accreting material. It typically ejects jets of particles that move at close to the speed of light, radiating across many wavelengths, in particular the X-ray, in processes are among the most energetic phenomena in the universe. The jets are often also highly collimated and extend far beyond their…