Sentences with phrase «within galaxies»

MARRONE: I'd really like to push ALMA to its full potential and examine individual star - forming regions within these galaxies.

The collision of the Antennae galaxies triggered the formation of millions of stars in clouds of gas and dust within the galaxies.

Vera Rubin and Kent Ford Jr. mapped the motions of stars within galaxies close to our own Milky Way, and they also concluded that each galaxy had to include enormous amounts of unseen matter, far more than all the visible matter.

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

Black holes, after all, are hard to study, in part because their immense gravitational pull allows no light to escape and because they're embedded deep within galaxies.

In the newer version, the universe expands and contracts in hundred - billion - year cycles, creating matter within galaxies in «mini Big Bangs.»

This cosmic collision has created rippling patches of higher density gas and dust within both galaxies.

If the stars within galaxies were shrunk to the size of oranges, they would be separated by 4,800 kilometers (3,000 miles).

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.

The movement of stars within galaxies, including the Milky Way, might be much more erratic than thought.

Such a process is known to occur in planetary systems when close encounters can cast a planet into deep space, and within galaxies when a star can get ejected, but these lonely compact galaxies are the result of slingshots on a supergalactic scale.

Either the red shift is a simple distance indicator, in which case cosmologists have to explain how galaxies formed selectively with this spacing between them, or else something very strange is going on within galaxies themselves to alter their red shifts.

Those other processes include collisions of giant gas clouds within galaxies, internal instabilities, tidal interactions during flybys of smaller galaxies, and minor mergers that don't produce conspicuous distortions.

Instead of searching for the light from individual galaxies with an optical telescope, the team stalked a different quarry, red - shifted radio waves emitted by hydrogen atoms floating in huge clouds within the galaxies.

In terms of mass they lie between the more commonly found stellar - mass and supermassive types of black hole [3], and could tell us about how black holes grow and evolve within clusters like Messier 15, and within galaxies.

Astronomer Karl Gebhardt of the University of California, Santa Cruz, and an international team used the Hubble Space Telescope to chart the orbital motions of stars within galaxies containing giant black holes, including eight newly identified ones.

An ethereal substance that makes up much of the matter in the universe, dark matter is necessary to explain the motions of stars within galaxies, among other observations.

It simply popped up in the studies of the internal dynamics within galaxies and just turned out, numerically, to be related to cosmology in this way.

During this period, six normal supernovae have occurred within the galaxies we've been monitoring, suggesting that 10 to 30 percent of massive stars die as failed supernovae,» he said.

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.

Many of the 2012 predictions can be traced back to the mysterious end of the ancient Mayan calendar, which measured time in vast cycles, based on Earth's position within our galaxy and our galaxy's movement through the cosmos.

There are perhaps a billion stars within our galaxy.

He and others are waiting for one to go off within this galaxy.

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.

Without knowing these distances, astronomers can not precisely situate any given radio source within the galaxy to accurately reconstruct the Milky Way's morphology.

«For many, many, many years we have wondered where the highest energy cosmic rays come from,» he says, «and now we have the statistical power to say that they do not come from within the galaxy.»

It wasn't until the 20th century that Edwin Hubble confirmed that, though some nebulae are gas clouds and some are star groups within our galaxy, others are galaxies outside the Milky Way — their own «island universes.»

As the galaxy moves through this intra-cluster medium at thousands of kilometres per second, the cloud acts like a wind, blowing away the gas within the galaxy without disturbing its stars.

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.

The winds, which travel at up to 500 kilometres a second, are easily strong enough to pick up debris from within a galaxy and deposit it far out in space, says Dopita.

Four additional bursts from the same source were found on 20 September 2016 by the EVN, which, along with data from the Arecibo dish, helped provide an even more precise localization within the galaxy, according to a paper published today in Astrophysical Journal Letters.

Over the past decade, physicists have developed much more detailed maps of the magnetic field within the galaxy, which can deflect charged particles such as protons and nuclei.

Out of a sample of seven jellyfish galaxies, Poggianti and her team found that six contained huge black holes eating up hot gas from within each galaxy (Nature, DOI: 10.1038 / nature23462).

If it holds up, however, it only deepens the mystery of cosmic rays, because it implies that there is some object or mechanism within our galaxy — as yet unknown — that is able to boost particles to these supercharged speeds.

Over the past few years, balloon and satellite cosmic - ray experiments have found high - energy electrons and their positively charged counterparts, positrons, in concentrations much higher than they would expect to see from the sun and other known sources of cosmic rays within our galaxy.

That's because a compact source may be compact, not because it's young, but because gas within the galaxy is dense enough to prevent the jets from extending far from the central black hole; i.e. it remains compact despite it's age.

Or they might interact with each other to produce organized structures, such as a thin, dark disk embedded within our galaxy.

Instead, van Dokkum's team found those star clusters moving languidly around NGC 1052 - DF2, a sign that there may well be very little or no dark matter within that galaxy at all.

Oort noted that the motions of stars within our galaxy imply the presence of a great deal of additional unseen, dark material.

An alternative explanation for the offset quasar, although unlikely, proposes that the bright object does not reside within the galaxy.

These enhanced capabilities will allow scientists to observe the gas squeezed within galaxy clusters, determining its composition, motion, and turbulence, all for a better understanding of how chemical elements evolved within the universe and what role interstellar gases play in star and galaxy formation.

The data also reveal a lot about star formation within the galaxy, says astrophysicist and team leader Raghunathan Srianand of the Inter University Centre for Astronomy and Astrophysics in Pune, India.

The purported swirls in the cosmic microwave background could in fact be a spurious signal from within our galaxy, a rumor suggests.

The resulting formation ranks as one of the largest possible structures within a galaxy.

«We are beginning to paint a picture of what our local interstellar environment is really like and we can tie that to what's happening in a much broader environment within the galaxy.

Astronomers have already identified over 600 planets around other stars, some of them roughly the size of Earth, and believe many billions more exist within our galaxy.

Some of the cosmic rays it detected might have come not from manic stars but from a black hole, lurking right here within our galaxy, that sucks in nearby material and whips it nearly to the speed of light.

Astronomers enjoy studying Andromeda in part because of its proximity — at 2.5 million light - years away it is close enough to us that individual stars can be resolved within the galaxy.

The detection of Refsdal's reappearance served as a unique opportunity for astronomers to test their models of how mass — especially that of mysterious dark matter — is distributed within this galaxy cluster.

But now, they admit that their results could be explained away by signals emanating from the dust within our galaxy.