Sentences with phrase «supermassive stars»

I work on models which try to understand how supermassive stars may form in the early Universe and may alleviate this tension.

One idea is that massive gas clouds or supermassive stars collapsed directly into a massive black hole.

Unlike ordinary stars, supermassive stars are stabilized against gravity mostly by their own photon radiation.

To investigate the origins of young supermassive black holes, Reisswig, in collaboration with Christian Ott, assistant professor of theoretical astrophysics, and their colleagues turned to a model involving supermassive stars.

They may be a new class of midsize black holes, weighing 100 solar masses or so, which could have formed either by the collision of smaller black holes or by the death of supermassive stars.

It probably came from the supernova explosion of a supermassive star, and the observers see it face on, when the jet approaches the observer and is not tilted.

The various stages encountered during the collapse of a fragmenting supermassive star.

Reisswig and his colleagues used supercomputers to simulate a supermassive star that is on the verge of collapse.

Their inflated sizes and close proximity to one another would make these stars collide, triggering a domino effect that eventually collects all the stars in the cluster into a single supermassive star 10,000 times the mass of the sun.

Not exact matches

Ask British Columbia (NYT) • The eerie math that could predict terrorist attacks (Wonkblog) • Twin black holes from gravitational wave discovery may have been born from a single star (ExtremeTech) see also Are Supermassive Black Holes Hiding Matter?

But I don't actually care enough about the claim to explicitly calculate just how weak the supermassive black hole's gravitational pull is compared to our local star cluster.

Yes, we have the telescopes to measure the positions of stars orbiting the supermassive black hole located at the center of our galaxy.

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

Or maybe, others said, the first stars were strange, short - lived and supermassive giants, far brighter and hundreds or even a thousand times more massive than our sun.

Observations using ESO's Very Large Telescope have revealed stars forming within powerful outflows of material blasted out from supermassive black holes at the cores of galaxies.

Astronomers have found clear evidence of tiny but supermassive objects there, pulling on stars and stirring up hot disks of gas.

The group observed the colossal winds of material — or outflows — that originate near the supermassive black hole at the heart of the pair's southern galaxy, and have found the first clear evidence that stars are being born within them [1].

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.

«Stars born in winds from supermassive black holes.»

Powerful radiation from supermassive black holes at the center of most large galaxies creates winds that can blow gas out of the galaxies, halting star formation.

OBESE black holes, not stars, may have lit up the first galaxies — and could have grown into the earliest supermassive black holes.

This material could eventually fall into the galaxy where it could fuel future star birth and feed the supermassive black hole.

Although stars can never attain that much mass, Albert Einstein's 1916 general theory of relativity put Michell's hunch about supermassive objects onto solid theoretical ground.

Small black holes the size of stars and the supermassive variety are familiar, but until now there have only been tentative signs of intermediate - mass black holes.

The central galaxy in this cluster harbors a supermassive black hole that is in the process of devouring star - forming gas, which fuels a pair of powerful jets that erupt from the black hole in opposite directions into intergalactic space.

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.

And a neutron star nestling up next to a black hole is a plausible setup: There's one orbiting the supermassive black hole at the center of the Milky Way.

If black hole seeds come from stars, the process should have given every dwarf galaxy its own supermassive black hole.

But just as important is what can't be seen: the fainter glows from smaller black holes, slowly putting on weight, as expected if supermassive black holes were born star - sized and grew gradually.

Researchers may have figured out how the 100 or so stars around the Milky Way's central supermassive black hole could have formed.

At the Milky Way's heart, stars circle a supermassive black hole called Sagittarius A *, which contains about 3.7 million times as much mass as our sun.

Doing so would make it possible to detect gravitational waves, faint ripples in space - time that, according to Einstein, emanate from interactions between massive objects like neutron stars and supermassive black holes.

Whether around a young star or a supermassive black hole, the many mutually interacting objects in a self - gravitating debris disk are complicated to describe mathematically.

The gravity around a supermassive black hole, however, should have shredded such a cloud like paint dropped on an eggbeater before it got a chance to make stars.

For many aspects of the simulation, researchers can start their calculations at a fundamental, or ab initio, level with no need for preconceived input data, but processes that are less understood — such as star formation and the growth of supermassive black holes — need to be informed by observation and by making assumptions that can simplify the deluge of calculations.

Doing so would make it possible to detect gravitational waves, faint ripples in space - time that, according to Einstein, emanate from interactions between massive objects such as neutron stars and supermassive black holes.

Studying first generation supernovae provides a glimpse into what the Universe looked like when the first stars, galaxies, and supermassive black holes formed, but to date it has been difficult to distinguish a first generation supernova from an ordinary supernova.

New studies suggest lonely planets flying through intergalactic space were formed by star - destroying supermassive black holes.

That would be big enough to see gravitational waves emitted by any merging supermassive black holes that may have existed around the time when the universe's first stars began to shine, about a hundred million years after the big bang.

This quashes hopes of finding low - frequency gravitational waves emitted by pairs of dense stars, or stars captured by supermassive black holes.

About 12 million light - years distant in galaxy M82, middleweight M82 X-1 is bigger than the black holes left over from stars» deaths, but it's not big enough to be supermassive.

They could have emerged from gamma - ray bursts, mysterious and short - lived cataclysms that briefly rank as the brightest objects in the universe; shock waves from exploding stars; or so - called blazars, jets of energy powered by supermassive black holes.

The findings have scientists puzzling over how early black holes grew into the supermassive beasts they are today without a steady diet of gas, dust, stars, and other fodder.

A snapshot image from a computer simulation of a star disrupted by a supermassive black hole.

At the centre of a galaxy 3.8 billion light years away, a supermassive black hole was devouring a star that had strayed too close, tearing it apart to spark a gargantuan swirling firework.

In the Universe, cosmic ray particles are accelerated by galaxy clusters, supernovae, binary stars, pulsars and certain types of supermassive black holes.

In a remarkably short period of time, black holes shifted from lightweight bullies to supermassive centerpieces of star - breeding galaxies.

Just as every planet in the solar system orbits the sun, every star in the galaxy orbits this supermassive black hole.

No one has actually seen a black hole, he says, and anything with a tremendous amount of gravity — such as the supermassive remnants of stars — could exert effects similar to those researchers have blamed on black holes.

A leading theory is that star - making materials are scattered by torrents of energy released by a galaxy's central supermassive black hole as it sloppily devours matter.