Sentences with phrase «galaxy clusters»

A study of galaxy clusters independently confirms that the universe is expanding at an accelerating pace.

Dark matter was first proposed more than 70 years ago to explain why the force of gravity in galaxy clusters is so much stronger than expected.

In fact, the colors represent dark matter, galaxies and hot gas formed from the collision of massive galaxy clusters.

[2] All objects that have mass affect the space around them in this way, but huge clumps of mass like galaxy clusters do so more strongly.

An international team of astronomers has discovered a distant massive galaxy cluster with a core bursting with new stars.

On their journey to us, they can pass through galaxy clusters that contain high - energy electrons.

The researchers are now looking to identify more galaxy clusters using this technique, with the aim of looking further back in time to the earliest stage of cluster formation.

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

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

Dark energy seems to cause the expansion of the universe to accelerate, while dark matter helps hold galaxies and galaxy clusters together.

The answer lies in its density, and according to a group of American astronomers the distortion of light by the gravity of nearby galaxy clusters may provide a way to measure it.

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

But current numerical simulations of how galaxy clusters form suggest they should be in areas with much hotter and less dense gas.

Here, a small galaxy cluster swept through a larger one about 100 million years ago.

As it moves from the top left to the bottom right, its tail fans out across the green galaxy cluster.

Later this year, astronomers will begin a new sky survey to look for signs of the stuff among exploding stars and ancient galaxy clusters.

A new study that examines the growth of galaxy clusters rather than the movement of stars independently confirms the presence of dark energy.

This would be an early phase of strong environmental effects seen in the present galaxy clusters.

The phenomenon was so unexpected that he conducted an expanded survey, looking at more and brighter galaxy clusters.

Self - driving vehicles, battery alternatives and analyses of galaxy clusters claim top prizes at global high school science competition.

These include five new young stellar object candidates and ten candidate galaxy clusters.

Unfortunately, at a temperature of just a few million degrees (much cooler than the extremely hot gas in galaxy clusters), it is extremely hard to detect.

In our local universe, massive galaxy clusters form over millions, or even billions, of years as smaller galaxies move closer due to gravitational attraction.

This so - called «cold» dark matter accurately describes large - scale structures like galaxy clusters.

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.

In addition, the images also reveal an ancient galaxy cluster — a densely populated «galaxy city» formed when the universe was just 3 billion years old.

Astronomers took advantage of this «gravitational lensing» to study the dark matter within galaxy cluster Abell 3827 (above), where a distant blue galaxy's light spirals around four galaxies.

While originally observing galaxy cluster MACS J1149 +2223, 5 billion light years away, using the Hubble Space Telescope, the researchers noticed a flickering light in the background.

Using the NASA / ESA Hubble Space Telescope, astronomers have discovered that the brightest galaxies within galaxy clusters «wobble» relative to the cluster's centre of mass.

The Heidelberg research was based on long - exposure images of the Perseus galaxy cluster obtained in 2012 with the 4.2 metre William Herschel Telescope on the Canary Island of La Palma.

The pair of elliptical galaxies is embedded deep inside the dense galaxy cluster known as SDSS J1531 +3414.

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

You are better able to hone in on what is going on in some very active galactic cores and also how much dark matter is distributed among and between galaxy cluster members.

A massive galaxy cluster called SPT - CL J0615 - 5746 sits in the foreground of the newly discovered SPT0615 - JD.

As the universe expanded, those dark matter seeds spread out into a «cosmic web,» linking galaxy clusters at the densest points with thin filaments of dark matter.

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.

The newest target of Hubble's mission is the distant galaxy cluster Abell S1063, potentially home to billions of strange new worlds.

Then two massive colliding galaxy clusters in the constellation Carina caught the attention of Marusa Bradac of the Kavli Institute at Stanford University and her colleagues, who saw this cosmic smashup as a chance to watch dark matter in action.

The dark matter behavior that fits the observed galaxy clustering best comes from dark matter made of particles that are massive and weakly interacting, meaning that they do not feel the stronger forces like electromagnetism or the nuclear forces and respond only to gravity.

These structures can be traced over more than 80 million light - years in the COSMOS survey - approximately five times the extent of the nearby Virgo galaxy cluster.

This spectacular view from the NASA / ESA Hubble Space Telescope shows the rich galaxy cluster Abell 1689.

Acting as a «natural telescope» in space, the gravity of the extremely massive foreground galaxy cluster MACS J2129 - 0741 magnifies, brightens, and distorts the far - distant background galaxy MACS2129 - 1, shown in the top box.

In addition to my Frontier Fields work, I am leading a large new Hubble program called RELICS to observe 41 more lensing galaxy clusters.

«Four unknown galaxy clusters containing thousands of galaxies discovered 10 billion light years from Earth.»

Here are images of six different galaxy clusters taken with NASA's Hubble Space Telescope (blue) and Chandra X-ray Observatory (pink) in a study of how dark matter in clusters of galaxies behaves when the clusters collide.

NASA's Chandra X-ray Observatory and other telescopes have led to the discovery of what is claimed to be the most distant galaxy cluster ever found.

This type of «feeding» mechanism for galaxy clusters — where gas from the merging of galaxies is converted to new stars — is rare.