Sentences with phrase «around a black hole which»

The team plans to make an image of the event horizon — the border around a black hole which light can enter, but not leave.

Not exact matches

well one hypothesis is that there is a massive black hole in the center of the universe that all the universe revolves around... once it sucks the whole or most of the universe into it... it can no longer hold it all together and it explodes creating a big explosion which dwarfs supernovas scattering elements and matter everywhere... and this expansion and contraction of the universe goes on for infinity with no beginning and perhaps no end.

There's no difference if there was a super giant star in the centre of the galaxy gravitationally speaking, a black hole's gravitational pull is proportional to its mass, which is estimated at around 4 million solar masses.

The researchers modeled the resulting accretion disc — an elliptical disc of stellar debris swirling around the black hole — along with its probable speed, radius, and rate of infall, or speed at which material falls onto the black hole.

The event horizon is the sphere around a black hole from inside which nothing can escape its clutches.

A black hole's intense gravity also tends to attract gas and dust, which forms an «accretion disc» around it.

The area around a black hole was thought to be too violent to form stars, since intense gravitational forces there could rip apart gas clouds in which stars are born.

The white blob at the center contains a massive black hole surrounded by infalling material, which, oddly, is not much brighter than some of the stars around it.

The Fermi Gamma - ray Space Telescope has detected a glow around the centre of the galaxy, which some researchers think could be caused by particles of dark matter crashing together and being annihilated around the black hole at the centre of the Milky Way.

While no one can see a black hole by definition, an X-ray telescope can see the orbiting material around that black hole, which is so hot it emits high - energy radiation.

About half of the disrupted star moves in elliptical orbits around the black hole and forms an accretion disc which eventually shines brightly in optical and X-ray wavelengths.

The leading suspects in the half - century old mystery of the origin of the highest - energy cosmic particles in the universe were in galaxies called «active galactic nuclei,» which have a super-radiating core region around the central supermassive black hole.

Around spinning black holes, however, frame dragging could be hugely important: By whipping magnetic field lines through the electrically charged gas around the holes, it could convert them into electromagnetic generators, which would explain how they spew jets of energetic particles millions of light - years into Around spinning black holes, however, frame dragging could be hugely important: By whipping magnetic field lines through the electrically charged gas around the holes, it could convert them into electromagnetic generators, which would explain how they spew jets of energetic particles millions of light - years into around the holes, it could convert them into electromagnetic generators, which would explain how they spew jets of energetic particles millions of light - years into space.

«While we don't yet know what dark matter is, we do know it interacts with the rest of the universe through gravity, which means it must accumulate around supermassive black holes,» said Jeremy Schnittman, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland.

Seamlessly weaving together Einstein's life and science, Kaku presents an engaging biography of the man and his theories, which were framed around questions a child might ask and duly gave rise to the great discoveries of modern physics, from gravity waves to black holes.

This particular energy range offers astronomers a detailed look at what is happening near the event horizon, the region around a black hole from which light can no longer escape gravity's grasp.

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.

The CTA, which should be completed by around the end of the decade, would allow scientists to carry out a range of research projects across astrophysics and fundamental physics, from the origin of cosmic rays to particle acceleration around black holes.

Most galaxies in the universe revolve around central black holes, which feed voraciously on galactic gas and dust and spew out radiation.

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.

Having three detectors also enables researchers to make a rough measurement of the wave's polarization — a property that indicates how the black holes» orbital plane (the plane on which they rotate around each other) is orientated with respect to Earth.

It comes from the spinning space - time around the black hole and in fact it is not very well known, but that energy is there for the taking — up to 29 percent of the so - called rest mass energy of a spinning black hole is extractable — an d original conjecture, which is not, as I say [said], yet established fact, but certainly taken much more seriously than it was at that time — 10 or 15 percent of the rest mass energy of the black hole, about half of the spin energy, is in practice according to our conjecture, is in fact, the power source for these relativistically moving jets.

Since the star was orbiting the black hole before it was ripped apart, its remains continue to swirl around the hole, which weighs a million suns, as they gradually get swallowed up.

As some of this matter falls toward the black hole, it heats up and emits synchrotron radiation, which is characteristic of electrons whirling at nearly the speed of light around a magnetic field.

The stellar orbits around the center of NGC 1600 indicate the latter, which «may be support for a binary black hole formed by a merger.»

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.

His team found that once a galaxy gets massive enough, its central black hole ramps up the rate at which it devours the gas around it.

The researchers found that the Chandra data from Sgr A * did not support theoretical models in which the X-rays are emitted from a concentration of smaller stars around the black hole.

This hot dust forms a ring around the supermassive black hole and emits infrared radiation, which the researchers used as the ruler.

A black hole refers to the region in space around the singularity in which the gravitational force is so strong that not even light can escape its pull.

These results, which were made possible by the high sensitivity and wideband observing capability of ALMA, will be a key to understanding the mysterious environment around supermassive black holes.

Pulsar surveys with the SKA will discover tens of thousands of pulsars, amongst which we expect to find a pulsar in orbit around a stellar - mass black hole and pulsars in close orbit around the super-massive black hole at the Galactic Centre.

Neutron stars and accretion disks around black holes emit X-rays, which enable us to study them.

They will combine several telescopes around the globe to peer into the heart of our own Galaxy, which hosts a mysterious radio source, called Sagittarius A * and which is considered to be the central supermassive black hole.

It is expected that this new method focusing on the difference of emission frequencies from molecules uniquely found around black holes may open the way for «the search for a hidden black hole» which is overcast with dust particles and optically invisible.

The image shall reveal the «shadow» of the event horizon — the «one - way» membrane around a black hole that defines the boundary surrounding black holes, through which light can enter, but never leave.

The huge gas emissions — which flow out like the wings of a butterfly around the black holes — might be switching off star formation in the galaxy.

Indeed, GRBs appear to emit produce even more energy than supernovae or even quasars (which are energetically bright accretion disks and bi-polar jets around supermassive black holes that are most commonly found in the active nuclei of some distant galaxies and possibly even in the pre-galaxy period after the Big Bang).

By contrast, Hubble's measurements are based on the velocities of stars whirling around in the dense cores of globular clusters, which yield a direct measurement of the black hole masses.

«This allowed us to measure the time it takes for the black hole and the donor star to rotate around each other, which is 64 days, and to model the velocity of the two objects and the shape of the orbit,» Soria said.

Earlier this year I used this tool to look up and test out a 2.5 - mile course around my grandparents» neighborhood, which kept me on track (and out of the black hole) while I was training for a half - marathon.

Some measure two inches deep, with etched pits creating the illusion of black holes around the edges, others feature embroideries, drawings, furniture and photographic montages, which have been digitally manipulated.