Sentences with phrase «produced by the black hole»

LIGO detected these ripples, produced by black holes eight and 14 times the mass of the sun, on December 26, 2015.

The gravitational waveform produced by the black holes as they spiralled towards each other and finally merged would have lasted for many millions, perhaps even billions of years.

Antimatter flits into existence in a variety of ways: it is produced by black holes, supernovas, and some types of radioactive decay.

Not exact matches

Morris calls the work «exciting» but notes that due to the very low total numbers of photons used in the analysis, of the dozen putative black holes some might actually merely be statistical flukes produced by coincidentally timed emissions from other sources.

But almost all of that light is being produced by the galaxy's central supermassive black hole — not by its stars.

Outer space may look mostly empty, but it's actually packed with cosmic radiation — gamma rays and charged particles produced by exploding stars, black holes and other violent astrophysical phenomena.

In the failed supernova of a red supergiant, the envelope of the star is ejected and expands, producing a cold, red transient source surrounding the newly formed black hole, as illustrated by the expanding shell (left to right).

(The fact that this hasn't had catastrophic effects on Earth, if it happens at all, is one reason that researchers at the CERN particle physics laboratory near Geneva, Switzerland, are so confident that scare stories about black holes being produced by their Large Hadron Collider are baseless.)

It was a burbling chirp of gravitational waves produced by the cataclysmic birth of a black hole from the merger of two smaller ones.

«There is no way you can produce more energy, say, by throwing the stuff down the black hole faster,» Wilms adds.

In 2016, scientists with the Advanced Laser Interferometer Gravitational - Wave Observatory, LIGO, announced the first direct detection of gravitational waves, produced by two merging black holes (SN: 3/5/16, p. 6).

The techniques are, in a sense, complementary to the «global» methods which Penrose pioneered: they can not handle «generic» collapse, where there is no special degree of symmetry, but they do produce a more quantitative picture of what would happen if a black hole were perturbed (for instance, by, a smaller object falling into it or orbiting close to it).

Long known for their obliterating power, black holes may also have been a creative force: New evidence suggests that they gave order to the chaotic mess produced by the Big Bang.

So once every nine years, when the black holes come closest together, material orbiting one black hole gets stirred up by its partner's gravity, producing a pulse of light (Astrophysical Journal, vol 325, p 628).

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.

«The techniques required to detect extremely faint signals produced by distant black holes were developed over decades,» Dr Madsen said.

For instance, it might create miniature black holes predicted by one version of the theory; these in turn would produce telltale showers of subatomic particles as they disintegrated.

The existence of black holes tens of times more massive than our Sun was confirmed recently by the observation of gravitational waves, produced by the merger of pairs of massive black holes, with the LIGO interferometer.

An interdisciplinary team of UvA physicists and astronomers proposed to search for primordial black holes in our galaxy by studying the X-ray and radio emission that these objects would produce as they wander through the galaxy and accrete gas from the interstellar medium.

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.

On Sept. 14, gravitational waves produced by a pair of merging black holes 1.3 billion light - years away were captured by the Laser Interferometer Gravitational - Wave Observatory (LIGO) facilities in Hanford, Washington, and Livingston, Louisiana.

The merger of two black holes, such as the one which produced the gravitational waves discovered by the LIGO Observatory, is considered an extremely complex process that can only be simulated by the world's most powerful supercomputers.

«High - energy neutrinos are produced along with gamma rays by extremely high - energy radiation known as cosmic rays in objects like star - forming galaxies, galaxy clusters, supermassive black holes, or gamma - ray bursts.

«There's no way you can produce more energy, say, by throwing the stuff down the black hole faster,» says Wilms.

The signal that LIGO is expected to announce on Thursday is rumoured to have been produced by two merging black holes.

«We still don't understand exactly how the corona is produced or why it changes its shape, but we see it lighting up material around the black hole, enabling us to study the regions so close in that effects described by Einstein's theory of general relativity become prominent,» said NuSTAR Principal Investigator Fiona Harrison of the California Institute of Technology (Caltech) in Pasadena.

Using LIGO's twin giant detectors — one in Livingston, Louisiana, and the other in Hanford, Washington — researchers are said to have measured ripples in space - time produced by a collision between two black holes.

Some have argued that energy released by the collapse of a massive single star to form a black hole might produce the UHECRs, but the rate of such events is too low.

Ray Jayawardhana: It is a clue that most likely, these high energy neutrinos come either from jets of particles that are accelerated by super massive black holes at the hearts of galaxies, or from really gigantic stars that explode at the end of their lives that also produce a phenomenon we call gamma ray bursts, which also might accelerate particles to very high speeds and energies.

If the X-ray source was caused by a GRB triggered by the merger of neutron star with a black hole or another neutron star, then gravitational waves would also have been produced..

The idea that neutron stars can produce x-ray jets as powerful as those created by black holes is «a pretty big deal» that challenges some of the current models of the phenomena, says astrophysicist Rob Fender of the University of Southampton in the U.K..

On February 11, 2016, LIGO scientists announced they had spotted gravitational waves produced by a pair of merging black holes.

In 2009, two researchers proposed a highly theoretical spacecraft powered by multiple mini-black holes — the smaller a black hole is, the more energy it produces.

These mergers produce shock waves, which propagate through the clusters, reaccelerating particles previously accelerated by supermassive black holes in the galactic nuclei.

Dr Pannarale added: «A possible scenario that could produce gamma - ray bursts involves a neutron star, the most compact star in the Universe, being ripped apart by a black hole while orbiting it.

Galactic magnetic fields, they suggest, are produced by a ring of electrically charged gas rotating around a giant black hole at the center of a galaxy.

These are ripples in the fabric of space - time that, according to Einstein's theory, are produced by cataclysmic events such as the merging of two black holes or two neutron stars.

The most specific rumour now comes in a blog post by theoretical physicist Luboš Motl: it's speculated that the two detectors, which began to collect data again last September after a $ 200 - million upgrade, have picked up waves produced by two black holes in the act of merging.

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 beam is produced by a disk of glowing, superheated gas encircling the black hole.

This winter, Kusenko and his colleagues will collaborate with scientists at Princeton University on computer simulations of the heavy elements produced by a neutron star — black hole interaction.

Gravitational waves — ripples in the fabric of space and time produced by dramatic events in the universe, such as merging black holes, and predicted as a consequence of Albert Einstein's 1915 general theory of relativity — carry information about their origins and about the nature of gravity that can not otherwise be obtained.

«We still don't understand exactly how the corona is produced or why it changes its shape, but we see it lighting up material around the black hole, enabling us to study the regions so close in that effects described by Einstein's theory of general relativity become prominent,» said co-author and NuSTAR principal investigator Fiona Harrison, of the California Institute of Technology in Pasadena.

LISA is tuned to detect lower frequencies and longer wavelengths produced by mergers between black holes millions of times more massive than the sun.

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.

It suggests that G2 could have been produced by the disruption of a red giant star, and its gas envelope is still feeding the black hole today.

One mechanism you have already learned about is the intense radiation produced by hot gas in an accretion disk around a black hole.

In 2005, astronomers announced that GRB 050709 and GRB 050509B may be have created by collisions involving two neutron stars (more from Chandra X-Ray Observatory) and ESO), but that the presence of a second flare by GRB 050724 was more likely to have been produced by a neutron star's merger with a black hole (ESO).

If the observations are confirmed, then it shows that Einstein's theory of general relativity holds even under extreme conditions — in gravity fields produced by objects like the galactic center's black hole, which contains the mass of 4 million suns.

One possibility is that Sgr A * radio emission is produced by disk of plasma (plasma is a fully ionized gas) falling onto the black hole.