At the heart of the Milky Way, there’s a supermassive black hole that feeds off a spinning disk of hot gas, sucking up anything that ventures too close — even light. We can’t see it, but its event horizon casts a shadow, and an image of that shadow could help answer some important questions about the universe.
The absence of reflected light makes black holes invisible, and the fact that the really interesting supermassive ones hide obscured at the center of galaxies compounds the problem. You would need to build a telescope the …
Researchers hope to get a picture of the black hole’s outline, or ”shadow.” ”As dust and gas swirls around the black hole before it is drawn inside, a kind of cosmic traffic jam ensues,” Doeleman said.
But, you are probably wondering how you take a picture of something that is black. Jean-Pierre Luminet , was the 1st to calculate an accurate image of what a black hole should look like, in 1978. According to one of his blog postings, a black object that absorbed all light shown on it would be invisible.
Images of a black hole could test general relativity as well as prove they exist, says astronomer Dan Marrone. A black hole, by definition, is black. So how are you going to take a picture of one? If you look right at the black hole it should look quite dark, as very little light escapes.
“Even if the first images are still crappy and washed out, we can already test for the first time some basic predictions of Einstein’s theory of gravity in the extreme environment of a black hole,” says radio astronomer Heino Falcke of Radboud University in …
The supermassive black hole candidate at the center of our Galaxy (associated with the radio source Sgr A*) is a prime candidate for studying the physical phenomena associated with accretion on to
No. Most of us understand that ”imaging a black hole” really means imaging the accretion disk and jets around the black hole as well as the light of ”background” objects warped by the black hole’s gravity well. I guess we have to dumb it down for you even more.
Apr 06, 2017 · This is why every “image” ever shown of a black hole in a news article or textbook is an artist’s rendering, rather than an actual picture…
Apr 21, 2006 · Since light can’t escape a black hole, what the picture would actually be of is the surroundings, and a black mass in the middle. The picture you show is the energy being released while the two black holes collide.