Sentences with phrase «large galaxy clusters»

This game of bumper cars is common in large galaxy clusters.

The galaxy was detected as part of the Frontier Fields program, an ambitious three - year effort, begun in 2013, that teams Hubble with NASA's other Great Observatories — the Spitzer Space Telescope and the Chandra X-ray Observatory — to probe the early universe by studying large galaxy clusters.

Aided by large telescopes and new technologies, they found them, especially in large galaxy clusters.

Astronomers have already begun leveraging Hubble and other space telescopes to create a preview of what Webb may reveal, staring at some of the largest galaxy clusters in a project called «Frontier Fields.»

The researchers studied 72 large galaxy cluster collisions and found that, like galaxies, the dark matter continued straight through the collisions without slowing down much, meaning that dark matter do not interact with visible particles.

Not exact matches

Our local group comprises Andromeda, the Magellanic Clouds and about 35 other galaxies, all of which lie in an even larger cluster called Virgo.

Clusters of galaxies are large self - gravitating systems in which galaxies and ionized gas are bound by massive amounts of dark matter.

James Binney at the University of Oxford says some sort of MOND - like behaviour may apply within galaxies while on larger scales, as in galactic clusters, dark matter would hold sway.

On scales larger than galaxy clusters, all galaxies are indeed moving apart at an ever increasing rate.

Some of the most dramatic evidence of dark matter shows up in images of large clusters of galaxies.

The annihilation rates have a signature non-monotonic velocity dependence over and above the resonances, e.g., for DM mass larger than 4 TeV the galactic annihilation rate (solid line) exceeds that in clusters (dashed line) and dwarf galaxies (dot - dashed line).

A composite image shows the galaxy NGC 4522 in the Virgo Cluster, the nearest large cluster of galaxies to our own local group of galaxies, and the «wake» of gas and dust being blown from the Cluster, the nearest large cluster of galaxies to our own local group of galaxies, and the «wake» of gas and dust being blown from the cluster of galaxies to our own local group of galaxies, and the «wake» of gas and dust being blown from the galaxy.

The majority of galaxies are organized into a hierarchy of associations called clusters, which, in turn, can form larger groups called superclusters.

It could be the elusive theory of everything, a set of universal laws governing everything from the smallest quark within the atom to the largest cluster of galaxies, from the Big Bang to this moment.

In the spectrum, the team found evidence of a large concentration of neutral hydrogen clouds close to the galaxy, indicating the presence of a giant cluster of embryonic galaxies.

«This particular grouping of galaxies represents an important milestone in the evolution of our Universe: the formation of a galaxy cluster and the early assemblage of large, mature galaxies.»

Over billions of years, these mergers continued, eventually producing the large galaxies and clusters of galaxies we see in the Universe today.

This is indeed a galaxy, because it is spatially extended with a radius of 124 light years — systematically larger than a globular cluster with comparable luminosity.»

Lauer thinks this large - scale motion is caused by the gravitational pull of mass clustered on a scale that is even larger than the scale of his survey — which would make it larger than predicted by most theories of galaxy formation.

However, Lauer says that the net velocity of the clusters indicates that the clumping of galaxies is occurring on a much larger scale than that found by Geller and Huchra.

It said that everything that happens in the cosmos at large — be it an apple falling from a tree on Earth or the distant whirling of a cluster of galaxies — happens because stuff follows invisible contortions in space and time that are caused by the presence of other stuff.

Astronomers have long known that galaxies cluster together into enormous systems — the urban centers of the cosmos — and that the largest galaxies tend to «point» towards their neighbors.

The Perseus cluster is a dense collection of hundreds of large and small galaxies located 240 million light years away.

Prior to 1989, it was commonly assumed that virialized galaxy clusters were the largest structures in existence, and that they were distributed more or less uniformly throughout the universe in every direction.

Clouds of these particles seem to embrace galaxy clusters in a large sphere, and they seemingly move unimpeded through the universe.

According to theory, the bulk of the matter in the universe consists of large, dark filaments of gas in the vast empty space between galaxy clusters.

Very large yet faint galaxies have been found where no one would have expected them — in the middle of a giant galaxy cluster.

The new instrument — the largest single optical telescope in the Southern Hemisphere — has thus far produced stunning views of the Lagoon Nebula, a barred spiral galaxy, and a globular star cluster.

Two of them — a more extensive survey of luminous galaxies, intended to tease out more information about galaxy clustering on large scales, and a more sensitive search for the cannibalized remnants of dwarf galaxies — will extend recent findings from the second Sloan survey.

They identified a cluster of 73 quasars, the brightly glowing cores found at the centre of some galaxies, far larger than any similar structure seen before.

In a new paper submitted to The Astrophysical Journal on 29 November 2013 (available on the ArXiv Preprint Server), a group of astronomers detected a large number of distant, gravitationally lensed galaxy candidates — all viewed through Abell 2744, with the galaxy cluster acting as a lens.

Eventually, these lumps became large enough and dense enough to collapse and form galaxies, which themselves clumped under the influence of gravity to form clusters and superclusters of galaxies, and so on.

Back in 1933, Fritz Zwicky of the California Institute of Technology had argued that large clusters of galaxies could not be held together by gravity unless most of their mass was in an unknown «dark» form.

These rare systems — only a few tens were known until recently — were thought to have had their outer coats of stars ripped away by the gravity of other, larger galaxies as they passed nearby, a theory supported by the fact that they were usually found in the centers of large clusters of galaxies.

The new generation of large ground - based telescopes, such as the 10 - metre diameter Keck Telescope at Hawaii, should allow us to see galaxies and clusters of galaxies in the process of formation.

Both the COBE ripples and the large - scale clustering of galaxies can be explained by a CDM universe in which 80 per cent of the present mass density is contributed by a cosmological constant, though some cosmologists argue that such theories may not explain the motions of galaxies.

Many researchers argue that ever more evidence from clusters of galaxies, the largest scale structure of the universe, and the afterglow of the big bang points to the existence of dark matter.

This is a subtle variant of weak gravitational lensing, in which the light emitted from distant galaxies is slightly warped by the gravitational effect of large amounts of matter, such as galaxy clusters.

If there is any large amount of antimatter in the universe, it must encompass at least an entire galaxy cluster, and probably a supercluster.

Thanks to the dry, clear atmosphere at the South Pole, SPT is better able to «look» at the cosmic microwave background — the thermal radiation left over from the Big Bang — and map out the location of galaxy clusters, which are hundreds to thousands of galaxies that are bound together gravitationally and among the largest objects in the universe.

In February, an image from the Hubble Space Telescope revealed one extremely distant galaxy behind a large cluster called Abell 2218.

The observations fit well with computer simulations, and can be used to refine models of how large - scale patterns, such as the distributions of galaxies and clusters of galaxies, came to be.

Dark matter's presence has for decades been inferred from its gravitational effects on large - scale structures such as galaxy clusters, but because it does not interact much with ordinary matter and does not emit or absorb light — hence the «dark» moniker — it has so far proved impossible to observe firsthand.

Because protoclusters are spread out over a much larger area of the sky, they are much harder to find than galaxy clusters.

A variable gravitational constant also explains how large clusters of galaxies could form.

Observations with ESO's Very Large Telescope in Chile have discovered a new class of «dark» globular star clusters around this galaxy.

The supermassive black hole found in NGC 1600 is one of the first successes of the project, proving the value of a systematic search of the night sky rather than looking only in dense areas like those occupied by large clusters of galaxies, such as the Coma and Virgo clusters.

The largest clumps of matter in the universe had an initial angular momentum — and these clumps broke up into ever smaller clumps, forming smaller clusters of galaxies, groups of galaxies, individual galaxies, solar systems within galaxies and ultimately, individual stars and planets.

While the black hole discovered in 2011 in the galaxy NGC 4889 in the Coma Cluster was estimated to have an upper limit of 21 billion solar masses, its range of possible masses was large: between 3 billion and 21 billion suns.

Astronomers have long known that at the largest scale, the universe looks like sea - foam: clusters of galaxies surrounding large, empty bubbles.