Sentences with phrase «supermassive black»

The feeding process is somewhat similar to what happens around supermassive black holes, but isn't as big and messy.

Supermassive black holes, which can be hundreds of thousands to billions of times more massive than the sun, may be found at the center of most galaxies.

Supermassive black holes are enormously dense objects buried at the hearts of galaxies.

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.

It is expected to operate for 10 years, observing high - energy gamma - ray photons from violent supermassive black holes and mysterious cosmic explosions called gamma - ray bursts.

Two teams of astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars — extremely luminous objects powered by supermassive black holes with the mass of a billion suns — regulate the formation of stars and the build - up of the most massive galaxies.

Resembling spotlights at a Hollywood movie premier, such beams are probably generated as matter plunges into a supermassive black hole at the center of the galaxy.

«Rotating dusty gaseous donut around an active supermassive black hole.»

That's because no one knows whether such supergiants grow from scratch within star - forming regions, or whether, like supermassive black holes and galaxies, they reach their enormous mass through mergers.

For the first time, astronomers have observed titanic tornadoes emerging from a supermassive black hole.

Scientists with the H0LiCOW collaboration have now weighed in, using quasars, ultrabright light sources stirred up by supermassive black holes.

The researchers conclude that the violent merging of two galaxies as their black holes spiral together into one supermassive black hole may be what powers AGN.

Before LIGO's detections, astronomers only had definitive observations of two varieties of black holes: ones that form from stars that were thought to top out around 20 solar masses; and, at the cores of large galaxies, supermassive black holes of still - uncertain provenance containing millions or billions of times the mass of the sun.

An unusual object about 90 million light - years from Earth might be a supermassive black hole kicked out of its home galaxy during a collision with another galaxy, a new study suggests.

Powerful gales from supermassive black holes in the center of galaxies can blast gas and other raw materials right out of the galaxy, robbing it of the raw materials needed to make new stars, a new study suggests.

They selected about 100 galaxies containing active supermassive black holes.

Since the mid 1990s, astronomers have known that every galaxy in the universe harbors a supermassive black hole at its center.

Astronomers have observed tornadolike winds powered by a central active supermassive black hole, such as the one in this image, pervading a galaxy.

They are powered by supermassive black holes at the centre of galaxies, surrounded by a rapidly spinning disk - like region of gas.

Why these objects are so much brighter than ordinary supermassive black holes has long puzzled researchers.

«It is the first time that we have seen outflowing cold gas moving at these large speeds at such large distances from the supermassive black hole,» said Claudia Cicone, a PhD student at Cambridge's Cavendish Laboratory and Kavli Institute for Cosmology, and lead author on the first of the two papers.

On Friday at a meeting of the Royal Astronomical Society in Glasgow, U. K., Bluck will report that the most active supermassive black holes release staggering amounts of radiation during their most energetic periods, which can last hundreds of millions of years — enough, he says, «to strip apart every massive galaxy in the universe at least 25 times over.»

Detailed comparison of new observations and supercomputer simulations has only now allowed researchers to understand how this can happen: the gas is first heated to temperatures of tens of millions of degrees by the energy released by the supermassive black hole powering the quasar.

How do you probe a supermassive black hole?

J1415 +1320 is what's known as a blazar, a bright galaxy with a gluttonous supermassive black hole at its center (SN: 3/4/17, p. 13).

Astrophysicists have found that when a supermassive black hole quickly devours gas and dust, it can generate enough radiation to abort all the embryonic stars in the surrounding galaxy.

Evidence for supermassive black holes — weighing millions or billions of suns — has been found in the early universe, but no one knows how they grew so big so fast.

After charting stars in the heart of our galaxy traveling at speeds up to 50 times faster than Earth circles the sun, scientists are convinced that a supermassive black hole is pulling the strings, as only the relentless grip of a supermassive black hole could keep these frenzied stars locked into orbit within the galactic center.

It may have even provided the seeds for the supermassive black holes that seem to anchor all of the big galaxies.

Pérez - González explained this will allow scientists to study how gases transformed into stars in the first galaxies, and to better understand the first phases in the formation of supermassive black holes, including how those black holes affect the formation of their home galaxy.

Gullberg and her colleagues believe that the explanation lies with powerful jets of radio waves that are ejected from a supermassive black hole at the centre of the Spiderweb Galaxy.

To probe the cloud, the team used an even more distant quasar — a hugely bright light source powered by a supermassive black hole — as a backlight.

The team imaged the area around the supermassive black hole in M77 and resolved a compact gaseous structure with a radius of 20 light - years.

The central region of M77 is an «active galactic nucleus,» or AGN, which means that matter is vigorously falling toward the central supermassive black hole and emitting intense light.

Although the findings confirm that active supermassive black holes emit plenty of x-rays, he explains, whether the radiation actually empties galaxies of their gas «is a good hypothesis — though still far from a certainty.»

Is the extreme activity of supermassive black holes connected to the dearth of star making?

Now we know quasars are crazy because of violence happening around distant supermassive black holes.

Astronomers have uncovered a supermassive black hole that has been propelled out of the center of a distant galaxy by what could be the awesome power of gravitational waves.

A century later, that insight underpins cutting - edge physics: searching for gravitational waves, probing the extreme gravity near the supermassive black hole at the center of our galaxy, tracing the origin of the universe.

Quasars are rare because they are a brief phase that all galaxies go through, when the supermassive black hole at their centers consumes matter at a high rate.

The winds powered by these supermassive black holes could come and go quickly.

This process is likely stopped early on by powerful gas outflows from supernova explosions, stellar winds and possibly even from the central supermassive black hole.

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.

Black holes are monsters that supposedly consume everything that comes close to them, yet the supermassive black hole at the heart of the Milky Way has been known to eat up only a tiny fraction of the gas and dust blowing in from massive young stars nearby.

Scientists have used the NASA Nuclear Spectroscopic Telescope Array (NuSTAR), an orbiting X-ray telescope, to capture an extreme and rare event in the regions immediately surrounding a supermassive black hole.

Candidate sources include supermassive black holes and certain types of gamma - ray bursts.

Astronomers can't wait for the gas cloud known as G2 to reach our galaxy's central supermassive black hole, as shown in this simulation.

The earliest supermassive black holes were first sighted in 2001 through a telescope at New Mexico's Apache Point Observatory as part of the Sloan Digital Sky Survey.

«A few hundred - million years later, it has grown into a billion - solar - mass supermassive black hole.

NGC1052 - DF2 does reside in a region where such things could conceivably occur, lying near a giant elliptical galaxy with a supermassive black hole at its heart.