Sentences with phrase «gas of an accretion»

It was Michael Faraday who discovered what happens when a magnetic field moves through an electrical conductor, or vice versa — though he certainly didn't have the ionized gas of an accretion disk in mind.

Not exact matches

Typo linchbreaker, Make «note» Lunchbreaker that «Mathew Francis» wrote the above quote declaring that said «jet of gas» was streaming from said galaxy's center and not from your position of the accretion disk.

Computer simulations suggest that when two black holes spiral towards each other on a collision course, much of the gas and dust in the spinning accretion disc surrounding each of them is ripped away by the gravity of the other.

Forest thinks the machine is on the verge of mimicking astrophysical phenomena such as accretion disks of gas and dust swirling into a black hole.

The standard scenario for the birth of gas giants posits a continuation of the rocks - crashing - together process, also known as core accretion.

Others suspect that the jets blast off from blazingly hot «accretion disks» of gas that swirl toward the holes.

Back in the early years of the solar system, planetoids formed by the accretion of dust and gas, and increasingly these objects began bumping into one another.

The gas in the accretion disk is hot enough for some of its atoms to lose electrons and become ionized — that is, to take on a positive electric charge.

As the accretion disk spins faster and its centrifugal force stops matter from falling in, a clump of gas gets thrown off the disk and up into the jet.

Theorists speculate that so - called quasi-periodic oscillation was caused by bright blobs in the black hole's accretion disk, made up of gas that slowly spirals towards the hole.

«Our results are based on a realistic modelling of the accretion of gas onto the black holes, and of the radiation they emit, which is compatible with current astronomical observations.

Their tendency would be to cluster near the centre of galaxies, making them more likely to pass near the supermassive black holes that sit there and run into the accretion discs of gas that surround them.

«Accretion of cool molecular gas is thought to be a key mechanism in galaxy evolution.

The accretion disk is made of chargedparticles, and when the particles move, they generate a magnetic field.From then on, the field lines and the gas tend to stick together andmove together.

The black holes that we can observe directly through their radiant emission are mostly in a configuration where gas swirls around the black hole in the form of an accretion disk and that accretion disk — most of the mass is going to be in an ionized form, and then some of that gas gets expelled from the environment around the black hole, while it is still outside the black hole, it gets squirted out in the form of an outflow, a wind like the solar wind and then [a] much faster, collimated outflow called a jet.

In some active galactic nuclei, you have a black hole and accretion disk and the majority of the power is associated with these outflowing jets, far more than is associated with the radiant energy that is emitted by the accretion disk and the hot gas surrounding it.

Lagrange says the finding is consistent with a planet formation model known as core accretion in which the planet starts out as a rocky core that gravitationally acquires more matter from the surrounding swarm of dust and gas.

After carefully examining several possibilities, the team concluded that huge amounts of gas are rapidly falling onto «little monster» black holes in each of these ULXs, which produces a dense disk wind flowing away from the supercritical accretion disk.

Clusters grow through the accretion of gas from these large - scale filaments and through mergers with other clusters and groups of galaxies.

In the prevailing theory of planet formation, called core accretion, dust grains stick together to form rocky worlds, and some of these rocky bodies then grow massive enough to attract surrounding gas, becoming gas giants like Jupiter.

Researchers are keen to understand the feeding habits of black holes because such binges, called accretion events, have an enormous effect on their surroundings, shutting off galaxy growth by heating and expelling the gas needed to form new stars.

Meanwhile, a correlation between the rate at which stars form in the central regions of galaxies and the amount of gas that falls into supermassive black holes (mass accretion rate) was known to exist, leading some scientists to suggest that the activity involved in star formation fuels the growth of black holes.

Using NASA's super-sensitive Chandra X-ray space telescope, a team of astronomers led by Q. Daniel Wang at the University of Massachusetts Amherst has solved a long - standing mystery about why most super massive black holes (SMBH) at the centers of galaxies have such a low accretion rate — that is, they swallow very little of the cosmic gases available and instead act as if they are on a severe diet.

«Jupiter is the oldest planet of the solar system, and its solid core formed well before the solar nebula gas dissipated, consistent with the core accretion model for giant planet formation.»

This suggests that the accretion disk and gas stream are strong enough to survive despite the damage caused by ultraviolet light,» explained Andrés Guzmán, the study's principal researcher and a postdoctoral fellow at the University of Chile.

There have been many reports saying that the ionized gas outflow driven by the accretion power of a supermassive black hole has a great impact on surrounding molecular gas (e.g., * 2,3).

Using data collected from the W. M. Keck Observatory, the largest optical telescopes in the world, researchers led by Neil Crighton (MPIA and Swinburne University of Technology) have now made the first unambiguous detection of this accretion of pristine gas onto a star - forming galaxy, that was previously theorized to exist based on cosmological simulations of galaxy formation.

Astronomers went back to the drawing board to put more details into the theory, breaking formation down into quick, single collapses and more gradual accretion of gas disks, and worrying about the effects of orbital migration.

Quasars are very luminous objects powered by accretion of gas into supermassive black holes at the centers of distant galaxies.

This discovery refutes existing theories, indicating that ultraviolet radiation from the star would destroy molecular gas and dust, and bringing the first direct detection of ionized gas wind along with a supersonic jet and an accretion disk.

Even though it was estimated that there are 56 solar masses in the disk, compared to 15 solar masses in the central star, the disk's rotation is perfectly aligned with the stream of ionized gas, suggesting that the supersonic gas stream is being accelerated and aligned from an accretion disk.

We will investigate how accretion occurs in the presence of a photoevaporating protoplanetary disk, accounting for planet - disk interactions and gas drag.

At the presentations of their research results, the two students showed their findings respectively focused on (i) Accretion and rotational movement of gas around a protostar and the formation of a circumstellar disc and (ii) Identification of bipolar jets (mass ejection) from multiple protostars and classification according to the evolutionary phases.

The riddle posed by super-Earths (1 — 4 Earth radii, 2 — 20 Earth masses) is that they are not Jupiters: their core masses are large enough to trigger runaway gas accretion, yet somehow super-Earths accreted atmospheres that weigh only a few percent of their total mass.

Most galaxies in the observable universe contain a supermassive black hole at their center, one that is either active and surrounded by an accretion disk of dust, gas and other debris, or is dormant — lurking at the center, patiently awaiting its next meal.

Under the most accepted scenario, planets form over tens of millions of years from the slow accretion of dust, rocks, and gas.

These galactic types are all characterized by violent activity at their cores, usually explained as arising from an accretion disk of hot gases that surrounds a central black hole having a mass of about 1,000,000,000 Suns.

Around the accretion disk are relatively dense clouds of hot gas that could be responsible for the broad emission lines seen in Type 1 Seyferts.

Also, the shape of the accretion disk may play a role in directing the gas into the jets.

Smaller terrestrial planets lose most of their atmospheres because of this accretion, but the lost gases can be replaced by outgassing from the mantle and from the subsequent impact of comets.

The team determined that galactic winds alone could not replenish the newly revealed gaseous reservoirs and suggests that the mass is provided by galactic mergers or accretion from hidden streams of gas, as predicted by current theory.

The black hole, which became visible due to the presence of superheated gas jets and a rapidly spinning accretion disk, was spotted using the Lijiang Telescope in Yunnan, China.

Around this black hole lies an accretion disk, composed of an orbiting cloud of gas, dust and plasma that is being slowly pulled inward due to gravitational attraction.

This is the glowing accretion disk of gas that can form around a supermassive black hole at the center of an otherwise ordinary galaxy.

Beyond this point rapid gas accretion ensues, turning the core into a giant planet in a relatively short period of time.