Sentences with phrase «horizon by the black hole»

And the reason you can get energy out of a black hole, that swallower of all things, is that the energy you detect never really got into the black hole to begin with — it's associated with the space - time whirlpool created outside the event horizon by the black hole's rotation.

The information would basically remain encoded in an infinite number of low - energy photons racing to get out of the black hole, but stuck at its event horizon by the black hole's intense gravity, according to a study in Physical Review Letters.

And the reason you can getenergy out of a black hole, that swallower of all things, is that theenergy you detect never really got into the black hole to beginwith — it's associated with the space - time whirlpool created outside theevent horizon by the black hole's rotation.

As gaseous matter is attracted towards the event horizon by the black hole's gravitational attraction, strong radio emission is produced before the gas disappears.

Not exact matches

The appearance of particles radiating from the black hole is the result of particle - antiparticle pairs formed by vacuum fluctution just outside the vent horizon.

He states in this article and in his previous post that, «A black hole is defined by a boundary known as its event horizon.

According to Bob, who remains outside the black hole, that particle has been separated from its antiparticle partner by the horizon.

Eventually Hawking radiation emanates from the event horizon, carrying the hologram's information away from the black hole bit by bit.

If all goes well, as early as next year a virtual telescope with the sensitivity of an Earth - sized radio dish will deliver images of a bright ring of hot gas surrounding a circular shadow: the heart of a black hole, bounded by the event horizon.

PULLED IN The event horizon is framed by the bright ring in this black hole simulation.

Plus, the outside astronaut can potentially piece together everything that fell into the vast black hole interior just by monitoring the event horizon.

The Nottingham experiment was based on the theory that an area immediately outside the event horizon of a rotating black hole — a black hole's gravitational point of no return — will be dragged round by the rotation and any wave that enters this region, but does not stray past the event horizon, should be deflected and come out with more energy than it carried on the way in — an effect known as superradiance.

In most corners of the cosmos, those pairs quickly disappear together back into the vacuum, but at the edge of an event horizon one particle may be captured by the black hole, leaving the other free to escape as radiation.

And just like a genuine black hole event horizon, the artificial one created by the light pulse can emit radiation.

By taking the change in the black hole's spin, and her half of the Hawking radiation that is emitted after she drops the qubit, Alice can use the rules of quantum teleportation to work out the spin of the qubit she dropped into the black hole — and hence retrieve information from beyond the black hole's event horizon.

Astronomers believe that black holes — those mysterious collapsed remnants of massive stars — are surrounded by invisible spheres called event horizons.

For comparison, the event horizon of a black hole like this is about 13 times bigger than the sun, and the accretion disk formed by the disrupted star could extend to more than twice Earth's distance from the sun.

Redder trails indicate particles more strongly affected by the black hole's gravitation and closer to its event horizon (black sphere at center, mostly hidden by trails).

Specifically, the horizon is obtained by plotting null geodesic lines on the so - called Schwarzschild metric, the solution to the field equations posed by Einstein for describing the gravitation field of a black hole.

Not all of the light rays (or photons) produced by matter falling into a black hole are trapped by the event horizon, a region of spacetime from which nothing can escape.

To spot the black hole's event horizon, a team of astronomers — led by Michael Garcia and Ramesh Narayan of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts — watched what happened as a black hole stole gas away from a nearby star.

But every black hole is surrounded by a horizon within which the escape velocity exceeds the speed of light (this is what makes black holes black).

Based on data taken by NASA's Chandra X-ray Observatory, the model takes into account how energy flows between two regions around the black hole — an inner core close to the boundary beyond which light can not escape (the event horizon) and an outer ring that extends far out and includes the massive young stars lurking near the black hole.

If you accept the multiple extra dimensions predicted by string theory, black holes are fuzzballs — tangled balls of strings with no well - defined horizon.

Black holes, which were predicted by Einstein's theory of general relativity, have an event horizon — a boundary beyond which nothing, even light, can return to the outside world.

But some theorists suggest that there's something else there instead — not a black hole, but an even stranger supermassive object that has somehow managed to avoid gravitational collapse to a singularity surrounded by an event horizon.

Most scientists agree that black holes, cosmic entities of such great gravity that nothing can escape their grip, are surrounded by a so - called event horizon.

So to confirm Hawking's theory, physicists have taken to building artificial analogues in the lab by mimicking the physics of a black hole's event horizon, the surface beyond which light can not escape.

Now researchers have proposed a new optical technique to observe and study black holes by measuring the imprint they should leave on the light that passes near an event horizon.

According to Neves, a black hole is not defined by singularity, but rather by an event horizon, a membrane that indicates the point of no return from which nothing escapes the inexorable destiny of being swallowed up and destroyed by the singularity.

By the time this matter has fallen past the point of no return, called the event horizon, it has concentrated the angular momentum of the black hole into a very small volume, which greatly distorts the surrounding space - time.

As matter is sent whirling into a black hole, tugged ever harder by the hole's irresistible gravity, the material heats up, and along its wild ride it radiates that heat away as light, until it disappears past the black hole's «event horizon» — the border beyond which nothing, not even light, can escape the hole's violent gravitational pull.

By some estimates, the telescope could be used to image near the black hole's event horizon — the boundary around which nothing can escape the black hole's gravity.

The authors do this by calculating how to encode the data in a quantum description of the event horizon, known whimsically as «black hole hair».

To plunge over the event horizon, material captured by a black hole must lose heat and momentum.

It takes a black hole from the Schwarzschild metric to the Kerr metric, under which there is not only an event horizon but an ergosphere in which objects are dragged along mightily by the black hole's rotation but still have a chance to escape:

The singularity constitutes the centre of a black hole and is hidden by the object's «surface,» the event horizon.

The team led by three principal investigators, Heino Falcke, Radboud University Nijmegen, Michael Kramer, Max - Planck - Institut für Radioastronomie, and Luciano Rezzolla, Goethe University in Frankfurt and Max - Planck - Institut für Gravitationsphysik, Potsdam, hopes to measure the shadow cast by the event horizon of the black hole in the center of the Milky Way, find new radiopulsars near this black hole, and combine these measurements with advanced computer simulations of the behaviour of light and matter around black holes as predicted by theories of gravity.

The predicted size of the shadow cast by the event horizon of the supermassive black hole at the center of our own Milky Way is about 50 microarcseconds (that is one fifty millionth of an arcsecond, which is 1 / 3600th of a degree!).

The problem is that the model developed by Keynesian theory begins to break down as we near the event horizon of a black hole of debt....