Sentences with phrase «of central black holes»

For reasons not fully understood, it appears that the sizes of central black holes and the masses of their galaxies, especially the central bulges, are almost perfectly in step [perfectly correlated].40

So, if the quasars are in a long filament then the spins of the central black holes will point along the filament.

Observations of the galaxy MCG -6-30-15 suggest that the spinning of its central black hole is producing power just like an electric generator.

This gave the astronomers unique information about the high - energy emission that reveals how material is processed in the immediate vicinity of the central black hole.

The team used the SINFONI instrument on ESO's Very Large Telescope and also monitored the behaviour of the central black hole region in polarised light using the NACO instrument.

But recently it was observed that the mass of a central black hole correlates with the mass of the galaxy around it!

Recent observations of the galaxy MCG -6-30-15 suggest thatthe spinning of its central black hole inside a huge magnetic field produces power just like an electric generator.

«Using measurements that were done at BYU, we were able to determine that the mass of the central black hole for this galaxy was about 8 million times the mass of the sun — that's a really really massive object.»

NGC 1600 suggests that a key characteristic of a galaxy with binary black holes at its core is that the central, star - depleted region is the same size as the sphere of influence of the central black hole pair, Ma said.

By analyzing this time difference and by measuring how fast the material is moving around the center of the galaxy, they were able to determine the mass of this central black hole.

The team sifted through data from all the x-ray sources situated within 70 light - years of Sgr A *, searching for those that had characteristics of black holes and neutron stars in binary systems and found four sources within just three light - years of the central black hole.

In particular, the explanation given by Mancuso and colleagues is based on the close relation that exists between star formation and the growth of the central black hole inside massive galaxies.

Secrest and colleagues compiled observations of NGC 4178 in a range of wavelengths of light to narrow down the mass of its central black hole.

At a distance of about 25 light - years from the presumed location of the central black hole, they noted that some of the blobs seemed to turn on and then off over the course of a few months.

In 2009, a team of astronomers used the Swift Spacecraft to measure the luminosity output of a distant Quasar, named S5 0014 +81, and measure the mass of the central black hole.

SDSS studies have probed the dark matter environments of quasars through clustering measurements, revealed populations of quasars whose central engines are hidden by obscuring dust, captured changes in quasar spectra that show clouds moving in the gravitational grip of the central black hole, and allowed a comprehensive census of the much fainter accreting black holes (active galactic nuclei, or AGN) in present - day galaxies.

Not exact matches

«NGC 1277's black hole could be many times more massive than its largest known compete tor, which is estimated but not confirmed to be between 6 billion and 37 billion solar masses in size.It makes up about 59 percent of its host galaxy's central mass — the bulge of stars at the core.

The object's closest compet itor is in the galaxy NGC 4486B, whose black hole takes up 11 percent of that galaxy's central bulge mass.»

Black holes might just seem likely to be at the central cores of all planetary and stellar objects.

In general, the stars in a galaxy outweigh the central black holes by about a factor of 1,000.

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

Galaxies that appear redder have high values for both of these measurements, meaning that the mass of the bulge — and central black hole — determines their colour.

The idea of matter escaping the alleged point - of - no - return was surprising (it's a central plot point in that other recent movie about black holes, the biographical The Theory of Everything), but the fate of information that falls into the black hole was what really troubled Hawking's colleagues.

Their analysis credited the monstrous central black hole with a mass of 6.4 billion suns — much more than was expected (The Astrophysical Journal, DOI: 10.1088 / 0004 - 637X / 700 / 2/1690).

He leads a team that plans to directly image the event horizon of the Milky Way's central black hole.

Its central black hole devours vast amounts of gas and spews out a huge jet of particles that extends far into intergalactic space.

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.

The Milky Way's central black hole, which weighs about 4 million times the mass of the sun, is relatively dormant.

After billions of years, the dwarf's central black hole made it to the galactic core and began a tight gravitational tango with the Milky Way's supermassive black hole.

Galaxies with more massive black holes turn out to have a higher concentration of stars in their central bulges, and consequently, the starlight is brighter in that region.

«Usually distant galaxies do not change significantly over an astronomer's lifetime, i.e. on a timescale of years or decades,» explains Andrea Merloni, «but this one showed a dramatic variation of its spectrum, as if the central black hole had switched on and off.»

The bright discs of gas around a galaxy's central black hole are thought to be obscured by a torus of dust.

The match between the masses of galaxies» central «bulges» and the sizes of their black holes suggests they grew together in the early universe.

Then, the team performed the same trick to gauge the mass of the diffuse spherical «bulge» of billions of stars that surrounds each central black hole.

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.

Most astronomers think that these objects generate their enormous amounts of energy as gravity and friction heat material that falls into a central «supermassive» black hole.

Some 290 million years ago, a star much like the sun wandered too close to the central black hole of its galaxy.

Like every major galaxy, it has a supermassive black hole in its core — specifically, Andromeda's has a hefty 100 million times the mass of the Sun, making it far larger than our own Milky Way's 4 million mass central black hole.

Other evidence comes from the analysis of modern galaxies, most of which have central black holes whose masses seem to correlate closely with the properties of their host galaxies.

The observations, the best yet, strongly support the idea that galaxies and their central black holes grow together, says Karl Gebhardt of the University of Texas in Austin.

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.

«We know that these showers are linked to the jets because they're found in filaments and tendrils that wrap around the jets or hug the edges of giant bubbles that the jets have inflated,» said Tremblay, «And they end up making a swirling «puddle» of star - forming gas around the central black hole.»

A light drizzle of cooling gas provides enough fuel for the central black hole's jets to keep the rest of the galaxy's gas hot.

Using a few assumptions about the lensing galaxy, Carilli and his colleagues calculate that the CO gas is actually in a relatively small 13,000 light - year — wide disk surrounding the central black hole of the quasar.

The star got too close to its galaxy's central black hole about 290 million years ago, and collisions among its torn - apart pieces caused an eruption of optical, ultraviolet and X-ray light that was first spotted by scientists in 2014.

What is clear is that hot gas in the form of a disk orbits the central black hole.

Long - term observations of IRAS F11119 +3257 suggest that winds near its central black hole blow outward at about 25 % the speed of light, the researchers report today in Nature.

Its central black hole is as massive as 16 million suns, and the region of space surrounding it shines with the strength of 1 trillion suns — energy derived, in part, from intense frictional heating within the disk of gas being sucked into the maw.

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.

This sounds reasonable at first, but host galaxies are 10 billion times bigger than the central black holes; it should be difficult for two objects of such vastly different scales to directly affect each other.