Sentences with phrase «galaxy clusters using»

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.

Astronomers have made the most detailed study yet of an extremely massive young galaxy cluster using three of NASA's... view image

Not exact matches

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.

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 researchers used ALMA to study a galaxy at the heart of the Phoenix Cluster, an uncommonly crowded collection of galaxies about 5.7 billion light - years from Earth.

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.

Researchers used supernovas, cosmic microwave background radiation and patterns of galaxy clusters to measure the Hubble constant — the rate at which the universe expands — but their results were mismatched, Emily Conover reported in «Debate persists on cosmic expansion» (SN: 8/6/16, p. 10).

A team using the Hubble Space Telescope found the invisible ring, which extends 2.6 million light - years across [see image above], while mapping the distribution of dark matter in the galaxy cluster CL 0024 +17.

His team has designed a balloon - borne telescope called SuperBIT, which they hope to use to check hundreds of galaxy clusters for misbehaving dark matter.

Now, a team at the University of California Irvine has used observations from NASA's Fermi space telescope, along with data from all - sky surveys, and applied updated calculations to observe our galaxy's centre — where there is thought to be a cluster of dark matter.

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 change.

It is also possible to use the way the gravity of clusters of galaxies distort more distant background galaxies, weak gravitational lensing, as another tracer.

Using the Hubble Space Telescope, the international team of collaborators peered across cosmic time to observe 65 distant galaxy clusters whose light has taken billions of years to reach Earth.

Captured using the exceptional sky - surveying abilities of the VLT Survey Telescope (VST) at ESO's Paranal Observatory in Chile, this deep view reveals the secrets of the luminous members of the Fornax Cluster, one of the richest and closest galaxy clusters to the Milky Way.

An international team of astronomers, led by Imperial College London, used a new way of combining data from the two European Space Agency satellites, Planck and Herschel, to identify more distant galaxy clusters than has previously been possible.

This image of Abell 2744 is the first to come from Hubble's Frontier Fields observing programme, which is using the magnifying power of enormous galaxy clusters to peer deep into the distant Universe.

They used a supercomputer to simulate the effect that living in a giant cluster of galaxies has on the shape and color of its members.

Astronomers using observations from the NASA / ESA Hubble Space Telescope and NASA's Chandra X-ray Observatory have studied how dark matter in clusters of galaxies behaves when the clusters collide.

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.

A 1965 Westinghouse finalist used geometry to figure out how metals act at a molecular level, and now studies clusters of galaxies

To determine the mass of Eridanus A, Gould uses the «virial theorem», which states that the faster the galaxies in a cluster move, the greater the mass of the cluster.

Free electrons in galaxy clusters distort the radiation, casting «shadows» in the background radiation that astrophysicists have already used to identify previously unknown galaxy clusters.

Researchers have since empirically observed the Sunyaev - Zel «dovich effect, and used it to discover galaxy clusters not detectable through other means.

Using other lensed galaxies within the cluster and combining them with the discovery of the Einstein Cross event in 2014, astronomers were able to make precise predictions for the reappearance of the supernova.

Zitrin's team spotted the galaxy's gravitationally multiplied images using near - infrared and visible - light photos of the galaxy cluster taken by Hubble's Wide Field Camera 3 and Advanced Camera for Surveys.

Thus, in a 1991 account of new data with important implications for the mystery of the origin of galaxies, we are helpfully informed that the moral of the data is «do not use O / Fe in a small sample of stars», and that the data leaves a puzzle about globular clusters «with very different horizontal branch (post-main sequence) morphologies».

Meanwhile, a second team of astronomers has used NASA's refurbished Hubble Space Telescope to detect Cepheids in another galaxy in the Virgo cluster.

Astronomers used Hubble's infrared vision to pierce through the dust in the disk of our galaxy that obscures the star cluster.

However, it will also be used to study many other astronomical phenomena including young stars, evolved stars, supernovae, star clusters, and galaxies.

But the astronomers were able to detect them by using a natural zoom lens in space, produced by the gravity of Abell 1689, a giant foreground galaxy cluster.

The SpARCS team have developed new techniques using Spitzer Space Telescope infrared observations to identify hundreds of previously - undiscovered clusters of galaxies in the distant Universe.»

A collection of unidentified blobs was discovered toward the Coma cluster of galaxies, using the Dragonfly Telephoto Array.

A gigantic and resilient «cold front» hurtling through the Perseus galaxy cluster has been studied using data from NASA's Chandra X-ray Observatory.

Using gravitational lensing as a cosmological probe, he described the distributions of normal and dark matter within galaxies, groups and clusters.

Hubble's latest discovery of 250 faint galaxies — formed 600 million to 900 million years after the Big Bang — in the early universe using three galaxy clusters to magnify the light given off by these distant objects.

Hubble's Frontier Fields will continue to use galaxy clusters to observe even earlier galaxies.

The Hubble Frontier Fields program uses galaxy clusters to observe the early universe.

The Atacama Large Millimeter Array is used to study the formation of planets, stars, distant galaxies, galaxy clusters and interstellar matter.

AMiBA, a millimeter interferometer like ALMA, was constructed by ASIAA (Academia Sinica Institute of Astronomy and Astrophysics) and National Taiwan University for polarimetry of microwave background radiation and detection of distant clusters of galaxies using the Sunyaev Zeldovich effect.

Then, using the Gemini North telescope, also on Hawaii, they spotted a halo of spherical clusters of stars around the galaxy's core, much like the halo that surrounds our Milky Way's core.

My colleagues and I were using the Echellette Spectrograph and Imager (ESI) instrument, which looks at faint objects in the visible wavelengths, to study star clusters and small galaxies.

The Hubble results have revolutionized the state of knowledge in virtually any branch of astronomy — not that every good result comes from the HST, but as these data are available publicly, they are used if ever possible; from planets, comets, and asteroids to stars, clusters, nebulae, and galaxies, every sort of objects in the sky were investigated, often obtaining most revolutionary results.

J0717 isn't just a large cluster of galaxies; astronomers are using it like a giant telephoto lens attachment to stud... view image

Using luminosity measurements, he determined how much mass should be in the cluster and then, because mass and gravity are related, calculated how fast the galaxies should be moving.

Then, using the twin 10 - meter optical and infrared telescopes at the W. M. Keck Observatory on Mauna Kea in Hawaii, the astronomers singled out 10 bright globular clusters (large compact groups of stars orbiting the galaxy's core) and used spectral data to measure their motions.

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.

Dr. Jean Brodie, from the University of California at Santa Cruz, will trace the formation and evolution of galaxies over cosmic time, making use of some «astronomical fossils» called globular star clusters, that are bright beacons tracing all the mergers and acquisitions that have assembled into present day galaxies.

It will be used for many different types of astronomical studies ranging from detailed imaging of galaxy clusters in the early universe to mapping areas of star formation in our own Galaxy.

For example, in 2011, two teams used data from Chandra's X-ray Observatory and other instruments such as the Hubble Space Telescope to map the distribution of dark matter in a galaxy cluster known as Abell 383, which is located about 2.3 billion light - years from Earth.