Sentences with phrase «nearest black hole»

Scary, but not terribly likely: We are not close to a star about to go supernova, and we're a long way from the nearest black hole.

To get a better handle on how much energy those photoionized atoms consume, researchers at Osaka University in Japan attempted to recreate conditions in the region of an accretion disk that would be nearest a black hole.

With the nearest black hole more than 1000 light years away, the question is very much a theoretical one.

These observations help clarify the origin of the powerful jet of gas streaming from the galaxy's center at a high fraction of the speed of light: it is likely driven by the swirling matter near the black hole's boundary.»

Brilliant outbursts of radiation from near the black hole had spread outward, struck iron atoms in surrounding gas clouds, and then reflected toward Earth, becoming visible here long after the original eruption.

M87's black hole, when viewed from Earth, would be the same apparent size as the nearer black hole at the centre of the Milky Way.

Astrophysicists simulated the fate of a hydrogen cloud as massive as 10,000 suns that suddenly wafted near a black hole.

This may mean that the Milky Way's magnetic field twists into surprisingly complex shapes near the black hole.

Blobs of gas roughly the mass of Jupiter (several illustrated) could form near the black hole at the center of the Milky Way and shoot into intergalactic space.

The colors show how time slows near the black holes.

One theory suggests the stars were pulled from a pre-existing star cluster that happened to wander near the black hole.

Besides hazardous materials, you'd have to look in exotic places like near a black hole or closer to home at lightning in the upper atmosphere to find natural forces capable of making gamma rays.

By tracking the positions and properties of hundreds of millions of randomly distributed particles as they collide and annihilate each other near a black hole, the new model reveals processes that produce gamma rays with much higher energies, as well as a better likelihood of escape and detection, than ever thought possible.

QPOs were first discovered near black holes (as X-rays) in 1985 by Michiel van der Klis (University of Amsterdam), who is a co-author of the new article.

So far, Doeleman and company have only been able to establish that radio emissions near a black hole originate from a specific region whose size they can determine.

Related sites Abstract of paper, with link to full text A primer on strong gravity, including light near a black hole

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.

«Fujioka et al. have shown us a versatile new way to explore the processes at work near black holes,» says physicist R. Paul Drake of the University of Michigan, Ann Arbor.

This is analogous to the curvature of space - time near a black hole.

A compact source of X-rays that sits near the black hole, called the corona, has moved closer to the black hole over a period of just days.

Now astronomers have spotted a new object near the black hole.

Assuming this is the orbital period of hot gas revolving near the black hole, the astronomers deduce that the monster weighs 450,000 to 5 million times more than the sun, agreeing with previous estimates and making the black hole comparable to the 4 - million - solar - mass one at the Milky Way's center — but located in a galaxy 3.9 billion light - years away.

«The processes near a black hole that kick out radio emissions are basically unknown,» says Edward Fomalont, an astronomer at the National Radio Astronomy Observatory in Virginia.

The finding suggests that mature stars found near the black hole by other researchers may have originated there despite the violent conditions, says Ramírez, who presented her findings at a press conference on Wednesday.

The ionization increases, the astronomers say, near black holes that are swallowing up matter at a higher rate relative to their mass, which creates more radiation capable of stripping away electrons.

Scientists can also do reverberation mapping, which uses X-ray telescopes to look for time differences between emissions from various locations near the black hole to understand the orbits of gas and photons around the black hole.

The astronomers argue that the intensity falls when more of the iron in matter near the black hole is completely ionized — stripped of all 26 of its electrons, so none remain to generate the emission line.

Near a black hole, though, the pairs can get split up.

That was consistent with a quasar, but dust blocked the definitive quasar signature of spectral lines emitted by gas near the black hole.

To limit inherent systematic uncertainties, Ghez's group accounted for overlapping light sources when one star passes in front of another or near the black hole itself, where infalling material emits radiation.

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.

To investigate, Adams and his team used a mathematical duality between Einstein's theory of general relativity — which describes gravity near black holes — and fluid dynamics.

In the new study, Charles Hailey, an astrophysicist at Columbia University, and his colleagues scrutinized the past dozen years of data gathered by the Chandra X-ray Observatory, an orbiting craft whose instruments are designed to detect high - energy radiation emitted by the immensely hot material surrounding exploded stars and near black holes.

To find out what's going on, Daniel Wang at the University of Massachusetts Amherst and his colleagues used NASA's Chandra X-ray Observatory to measure the temperature and abundance of gas near the black hole.

Instead, the X-ray data show the gas near the black hole likely originates from winds produced by a disk - shaped distribution of young massive stars.

The blue stars surrounding the black hole are no more than 200 million years old, and therefore must have formed near the black hole in an abrupt burst of star formation.

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.

If the pattern holds true, highly magnetized clouds would continue to pass near the black hole over the next several decades.

«We're seeing a new class of stars near the black hole, and as a consequence of the black hole.»

We need the high resolution of Hubble above the atmosphere to isolate the motions near the black hole.

Only polarization of Sgr A * light permits to constrain the geometry of the magnetic fields near the black hole event horizon and it is possibly the only way to find out what Sgr A * radio source really is.

The astronomers also noticed that one side of the donor star was always brighter than the other because it was illuminated by X-rays coming from near the black hole.

Another source of radiation near a black hole is the corona.

Most X-rays are emitted by pockets of hot gases found between galaxies and near black holes.

Not exact matches

Scans of the sky using visible light, X-rays, and electromagnetic waves have been insufficient, says astrophysicist and LIGO data analyst Vicky Kalogera, because they only provide circumstantial evidence of how black holes warp the light and space near them.

Within black holes there may well be a gravimetric consistency whereby atomic particles release energy via electron dispersal ratios giving rise to atoms flying apart at near light speeds from said release of electrons energy dispersal rates and not via «anti-particles» as Steve Hawking suggests.

Black holes are found to be discharging elements at opposing angles, like sprung leaks of particle atomization being spewed nearing the speed of light.

Nearing the very core of such awesomely huge black holes therein resides a centrality where atoms collide with such force that they release many of their atoms» electrons resulting in a wave of energy giving rise to particle jets being emitted from the said black hole's core.

Mr Flowers was chair of Co-op Bank between 2010 and 2013, overseeing its near collapse after revealing a # 1.5 billion black hole in its accounts.

It is a massive black hole of chaos sitting in our near future, which no analyst or expert is able to fully describe.