Sentences with phrase «supermassive black hole accretion»

«In fact, the energy and timescale of the gamma - ray emission is a better match to some types of supernovae, or to some of the supermassive black hole accretion events that Swift has seen,» Fox said.

Not exact matches

The researchers found that relatively cool accretion discs around young stars, whose inner edges can be several times the size of the Sun, show the same behaviour as the hot, violent accretion discs around planet - sized white dwarfs, city - sized black holes and supermassive black holes as large as the entire Solar system, supporting the universality of accretion physics.

Such counterparts are dependably seen in the wake of comparably energetic cosmic explosions, including both stellar - scale cataclysms — supernovae, magnetar flares, and gamma - ray bursts — and episodic or continuous accretion activity of the supermassive black holes that commonly lurk in the centers of galaxies.

In this artist's rendering, a thick accretion disk has formed around a supermassive black hole following the tidal disruption of a star that wandered too close.

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.

In October 2015, astronomers watched as a supermassive black hole in the galaxy PGC 043234 — 290 million light - years away — shredded a star, scooped it into the accretion disk and then ate it for space lunch.

The orbiting motion of the accretion disk can trace the «death spiral» of its matter as it falls into the darkness of what the astrophysicists measure to be a supermassive black hole.

The accretion disks around supermassive black holes (black holes with masses millions of times that of the Sun) are some of the brightest objects in the Universe.

Such «supercritical accretion» is thought to be a possible mechanism in the formation of supermassive black holes at galactic centers in very short time periods (which are observed very early in cosmic time).

Those would cluster near the centre of galaxies, making them more likely to pass through the accretion discs of supermassive black holes there, causing the bursts we detect.

Quasars are believed to be powered by accretion of material onto supermassive black holes in the nuclei of distant galaxies, making these luminous versions of the general class of objects known as active galaxies.

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.

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).

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

When this happened, the supermassive black hole at the centre of the second galaxy began disrupting the first one's feeding frenzy, thereby preventing accretion — which is what made Markarian 1018 shine brightly in the first place.

An artist's impression of a supermassive black hole at the centre surrounded by matter flowing onto the black hole in what is termed an accretion disk.

The accretion energy the FSRQs once had was stored in the increasing rotation and mass of the supermassive black holes.

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.

Read: Scientists Create A Better Model To Simulate Accretion Disk Flow Around Milky Way's Supermassive Black Hole

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).

These observation results were published as Izumi et al. «Do Circumnuclear Dense Gas Disks Drive Mass Accretion onto Supermassive Black Holes?»

The computer simulations revealed that supermassive black holes can form much faster than previously believed if their growth is fed by cold and dense accretion streams.

The mechanisms behind black hole accretion are poorly understood, but the researchers suggest that this example may just have been an «early bloomer» that had an extremely active youth, only to settle down as a «regular» supermassive black hole in a large elliptical galaxy.

In order to accurately model the behavior of the accretion disk that orbits our galaxy's supermassive black hole, the researchers used a method that tracked the motion and path of individual particles — rather than one that treats the motion of plasma as a macroscopic fluid.

In March, researchers from the Los Alamos National Laboratory in New Mexico used computer simulations to calculate the rate of evolution of supermassive black holes if their growth is fed by cold and dense accretion streams.

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

As a result, some accretion disks around supermassive black holes are incredibly bright, and can outshine all the billions of stars in their host galaxy put together.