by Bec Crew, Science Alert
Like nothing we’ve seen in our Universe
Black holes are strange enough as it is, but new simulations point to the existence of a black hole in another universe that mimics the behaviour of a bizarre type of liquid that climbs walls and flows uphill.
This ‘superfluid black hole’ is the result of physicists modelling a theoretical black hole that behaves in a way that’s mathematically identical to liquid helium when it enters a superfluid state, and they say it’s so strange, our entire Universe probably couldn’t support it. Continue reading Physicists have simulated a ‘superfluid’ black hole that acts like liquid helium
by Alison Klesman, Discover
Neutron stars, black holes and other remnants of stellar explosions are some of the universe’s most intriguing objects – and some of the hardest to study. But when NASA’s newest Explorers Program mission, IXPE, launches, we’ll see them like never before.
Stellar remnants such as black holes and neutron stars are difficult to see. Because of their tiny size and oftentimes obscuring disks of dust and gas, direct measurements of these objects have long eluded astronomers. However, such extreme objects heat their environments to millions of degrees, which causes high-energy emission in the form of easily-observable X-rays. Studying these X-rays provides a window into the world around otherwise impossible-to-see phenomena. Continue reading NASA Plans to Peer Inside a Black Hole
by Pennsylvania State University, Phys.org
The image is from the Chandra Deep Field-South. The full field covers an approximately circular region on the sky with an area about two-thirds that of the full moon. However, the outer regions of the image, where the sensitivity to X-ray emission is lower, are not shown here. The colors in this image represent different levels of X-ray energy detected by Chandra. Here the lowest-energy X-rays are red, the medium band is green, and the highest-energy X-rays observed by Chandra are blue. The central region of this image contains the highest concentration of supermassive black holes ever seen, equivalent to about 5,000 objects that would fit into the area of the full moon and about a billion over the entire sky. Continue reading Deepest X-ray image ever reveals black hole treasure trove