Sentences with phrase «as galaxy clusters»

Scientists have decoded faint distortions in the patterns of the universe's earliest light to map huge tubelike structures invisible to our eyes - known as filaments - that serve as superhighways for delivering matter to dense hubs such as galaxy clusters.

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.

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.

The wobbling of the BCGs could only be analysed as the galaxy clusters studied also act as gravitational lenses.

«Our work demonstrates that the ultrahigh - energy cosmic rays escaping from active galactic nuclei and their environments such as galaxy clusters and groups can explain the ultrahigh - energy cosmic - ray spectrum and composition.

It might not be measurable on local scales, like here in the solar system, or in any matter - strewn environs, such as galaxy clusters.

«We asked ourselves how the sensitive ultra-diffuse galaxies could survive at all in an environment as unsettled as a galaxy cluster,» explains Carolin Wittmann, first author of the study and PhD student at the Institute for Astronomical Computing (ARI) at the ZAH.

Not exact matches

The sizes of the galaxies and galaxy clusters predicted as a result should then match observational data.

Without Nothingness hemming together all of the celestial pageantries» clusters of galaxies in nebulas, ever forming solar systems, Life as we know would never have been able to be and therefore become.

Without Nothingness hemming together all of the celestial pageantries» clusters of galaxies in nebulas forming solar systems, Life as we know would never have been able to be and therefore become.

As it has countless times in the past and present, (the Holocaust, the Bubonic Plague, the World Wars, countless natural disasters, (floods, storms, earthquakes, etc), the Sky Myth was on vacation when, on a tiny speck of a planet, on a boring arm of the galaxy, in an average galaxy cluster among billions, a bad thing happened.

The light from most galaxies doesn't pass near a cluster such as Abell 2744 on its way to Earth.

Lotz is leading a three - year effort, known as the Frontier Fields project, to stare at six massive clusters with the Hubble Space Telescope and hunt for the seeds of galaxies similar to our own.

As well as the SMC itself this very wide - field image reveals many background galaxies and several star clusters, including the very bright 47 Tucanae globular cluster at the right of the picturAs well as the SMC itself this very wide - field image reveals many background galaxies and several star clusters, including the very bright 47 Tucanae globular cluster at the right of the picturas the SMC itself this very wide - field image reveals many background galaxies and several star clusters, including the very bright 47 Tucanae globular cluster at the right of the picture.

Fritz Zwicky used it for the first time to declare the observed phenomena consistent with dark matter observations as the rotational speeds of galaxies and orbital velocities of galaxies in clusters, gravitational lensing of background objects by galaxy clusters such as the Bullet cluster, and the temperature distribution of hot gas in galaxies and clusters of galaxies.

But there are plenty of smaller clusters and long rivers of galaxies, known as galaxy filaments, that fiddle with the light and create weak lenses.

Over the last few years, Hubble has given us views of infant galaxies as they were just 500 million years after the Big Bang, allowing cosmologists to see how quickly the raw materials from the newborn universe coalesced into stars and then galaxies and then clusters of galaxies.

Its 5 inch aperture ensures that it gathers plenty of light for great views of the planets and Moon, as well as brighter galaxies, nebulae, and star clusters.

Using observations from several telescopes, Yale University astronomer Pieter van Dokkum and colleagues studied 10 bright clumps of stars within the galaxy, known as globular clusters, and measured their velocities.

The gas ball travels at 1.8 million miles an hour — 600 times faster than a speeding bullet — through the galaxy cluster, giving researchers clues as to how such clusters grow.

Astronomers exploit this property of space to use the clusters as a zoom lens to magnify the images of far - more - distant galaxies that otherwise would be too faint to be seen.

Last year a team at University College London used the clustering of galaxies as a proxy for the clumping of matter, and their result put that mass at under 0.28 electronvolts, less than one - millionth the mass of an electron.

Computer modeling of the gravitational dynamics among galaxies in a cluster suggest that galaxies as big as our Milky Way are the likely candidates as the source of the stars.

Of the stars, 14 had the same abundance of elements as Omega Centauri, the galaxy's most luminous globular cluster.

Astronomer Tiantian Yuan at Swinburne University of Technology in Melbourne, Australia and colleagues found the new record - holder thanks to a closer cluster of galaxies, which acted as a gravitational lens that helped astronomers produce two magnified images of A1689B11 (SN: 3/10/12, p. 4).

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.

Gas at the centre of galaxy clusters should be cooling as it loses energy; this would allow nearby material to compress the gas and create ideal conditions for making stars.

Of the stars, 14 had the same abundance of elements — such as sodium, magnesium, zirconium, barium — as Omega Centauri, the galaxy's most luminous globular cluster.

When the cobe satellite in 1992 mapped the faint microwave glow left over from the Big Bang, it couldn't make out structures as small as individual galaxies, or even clusters of galaxies.

The researchers speculate that the vagabond clusters were likely ripped loose from their parent galaxies by cosmic mayhem, such as the cannibalization of one galaxy by another.

Those clusters snowballed in size, and galaxies as we see them today grew up inside colossal, near - spherical blobs of dark matter.

While a typical galaxy contains billions of stars, a number of tiny galaxies have been found in recent years that do not fit the classic picture and instead resemble the groups of stars known as star clusters.

Its discoverers proposed that a galaxy cluster acted as a gravitational lens, warping space - time and, in effect, focusing the light towards Earth.

What's more, as Zwicky first wrote in a Swiss journal, galaxies in the Coma cluster seemed to be moving in relation to one another at rates that would violate the laws of gravity, unless you posited the mysterious presence of a great deal of Dunkle Materie (or dark matter).

Sometimes credit didn't come because, as far as we know, he was wrong: his idea that «tired light» and not an expansion of the universe might be the cause of the lengthening of wavelengths from distant galaxies, or his insistence that galaxy clusters didn't belong to superclusters.

Astronomers from the University of Toronto and the University of Arizona have provided the first direct evidence that an intergalactic «wind» is stripping galaxies of star - forming gas as they fall into clusters of galaxies.

GALACTIC QUARTET The way invisible dark matter warped the light from distant galaxies, shown here as the swirl of material surrounding four giant galaxies in cluster Abell 3827 (seen in this Hubble Space Telescope photograph), suggested that dark matter can separate from stars when galaxies collide.

Vogeley, Cai and others in their field are keenly interested in gauging voids» shape, size, distribution and mass (they do have some — they're only virtually empty), much as we've done already for galaxies and clusters.

Follow Roger Highfield as he time - travels, wages biological warfare and finds the secret of galaxy clusters in his soup — all in a typical Monday

Astronomers spotted the space rocks — plus another two that had been previously cataloged — in images collected as part of the Frontier Fields project, which observed six clusters of galaxies billions of light - years away.

Astronomers have theorized that as a field galaxy falls into a cluster of galaxies, it encounters the cloud of hot gas at the centre of the cluster.

Scientists already know that MOND can not explain other phenomena that dark matter can, such as the patterns seen in the cosmic microwave background or the clustering of galaxies.

The fast cessation of star formation experienced by satellite galaxies can be explained by «ram - pressure stripping,» which is loss of star - forming gas within a galaxy as it moves within a denser environment, such as a cluster.

As the stars within the cluster interact with other clusters and clouds of gas in the galaxy around them, and as the gas between the stars is either used up to form new stars or blown away from the cluster, the cluster's structure begins to changAs the stars within the cluster interact with other clusters and clouds of gas in the galaxy around them, and as the gas between the stars is either used up to form new stars or blown away from the cluster, the cluster's structure begins to changas the gas between the stars is either used up to form new stars or blown away from the cluster, the cluster's structure begins to change.

As part of its Frontier Fields program, Hubble observed a very massive cluster of galaxies, MACS J0416.1 - 2403, located roughly 4 billion light - years away and weighing as much as a million billion sunAs part of its Frontier Fields program, Hubble observed a very massive cluster of galaxies, MACS J0416.1 - 2403, located roughly 4 billion light - years away and weighing as much as a million billion sunas much as a million billion sunas a million billion suns.

The new model is expected to motivate studies of galaxy clusters and groups, as well as the development of other unified models of high - energy cosmic particles.

The Coma cluster houses nearly 20 times as many dark galaxies as previously known, researchers report.

The observatories are designed to be sensitive to waves from as far away as the Virgo cluster of galaxies 65 million light - years away.

As a galaxy moves through a dense galaxy cluster, the cluster's hot gas blows away the cooler gas in the galaxy.

In the end success was secured by the fact that the stone - dead galaxy was positioned behind a foreground cluster of other galaxies — a cluster which functioned as a «natural lens» by amplifying as well as enlarging the image of MACS2129 - 1.