So what is this?
This is a page dedicated to what “for some reason” I find unspeakably interesting – the supermassive black hole in the center of the Milky Way, and the most central region of the Galaxy surrounding that point mass. I mean, how can you NOT be fascinated? This is one of the most extreme regions the universe can produce, except for Quasars – which is pretty much the same, but active. The more we learn about the core, the more absurd this region becomes.
Note that it looks like I will be closing down the respective Scoop.it about this topic. It is time to get rid of Scoop.it – and I advise you to do so as well. They have turned scammers.
A Very Hungry Black Hole Is Found, Gorging on Stars
It is a truism of modern astronomy that every galaxy has a hungry heart, to paraphrase Bruce Springsteen, in the form of a massive black hole gulping gas, dust and even stars. Astronomers in Australia now say they have found the hungriest heart in all the cosmos. It is a black hole 20 billion times the mass of the sun eating the equivalent of a star every two days. The black hole is growing so rapidly, said Christian Wolf, of the Australian National University, who led the team that found it in the depths of time, “that it is probably 10,000 times brighter than the galaxy it lives in.” So bright, that it is dazzling our view and we can’t see the galaxy itself. He and his colleagues announced the discovery in a paper to be published in the Publications of the Astronomical Society of Australia.
Black hole hum: the background noise that fills the universe
Australian astrophysicists have devised a new technique to eavesdrop on the distant whispers of merging black holes. Every few minutes, a pair of black holes collides somewhere in the Universe, sending shivers called gravitational waves through the fabric of spacetime. Over the last three years, the LIGO and Virgo collaborations have finally managed to detect six of these long-theorised ripples as they washed over Earth, tracing them back to five black hole mergers and one neutron star merger. According to researchers, every year there are more than 100,000 mergers too faint to be resolved by the current generation of detectors. Instead, these events are thought to blend together into a background “hum” of gravitational waves that hasn’t yet been observed.
Theorists describe black hole megamergers
The video above – via MIT astrophysicist Carl Rodriguez – shows a simulation of the dynamics of 50 black holes in the center of a globular star cluster. It shows how single black holes may eventually form a binary black hole, where two black holes orbit each other. For the past few years, Rodriguez has been investigating the behavior of black holes within globular clusters. He’s wondered whether their interactions are different from black holes occupying less populated regions in space. He recently led an international team of astrophysicists, whose work suggests that black holes in globular star clusters might partner up and merge multiple times. The mergers would produce black holes more massive than those that form from single stars.
Center Of The Milky Way Has Thousands Of Black Holes, Study Shows
The supermassive black hole lurking at the center of our galaxy appears to have a lot of company, according to a new study that suggests the monster is surrounded by about 10,000 other black holes. For decades, scientists have thought that black holes should sink to the center of galaxies and accumulate there, says Chuck Hailey, an astrophysicist at Columbia University. But scientists had no proof that these exotic objects had actually gathered together in the center of the Milky Way.