Sentences with phrase «early star clusters»

An artist's impression shows a primordial quasar as it might have been, surrounded by sheets of gas, dust, stars and early star clusters.

Not exact matches

When the cosmos was a few hundred million years old, this gas coalesced into the earliest stars, which formed in clusters that clumped together into galaxies, the oldest of which appears 400 million years after the universe was born.

Astronomers had long debated whether globular clusters were massive enough for black holes to form, either when the clusters condensed in the early universe or when gas and stars accumulated at their cores.

Current theories suggest that the seeds of these black holes were the result of either the growth and collapse of the first generation of stars in the Universe; collisions between stars in dense stellar clusters; or the direct collapse of extremely massive stars in the early Universe.

The research, also posted online at arXiv.org, negates an earlier finding that stars were separated from their dark matter in Abell 3827, a cluster including four colliding galaxies about 1.3 billion light - years from Earth (SN: 5/16/15, p. 10).

Stars in the extremely old globular cluster NGC 6397 are slightly polluted by the shattered fusion products of an even earlier generation of sStars in the extremely old globular cluster NGC 6397 are slightly polluted by the shattered fusion products of an even earlier generation of starsstars.

Earlier observations of star clusters forming in evenly distributed clumps in spiral galaxies could explain Tremblay's «serendipitous discovery» in the Hubble data.

Early on, when the cluster begins to condense from a collapsing cloud of gas, the brightest and shortest - lived stars blow out fierce winds that energize the first set of cosmic rays and expel material from the star itself.

Both spots are dense clusters with conditions like those of the early universe, so this could help reveal how some of the very first stars formed.

As shown in the zoom - in panel at right, dense clusters in the low - metallicity Magellanic Clouds, which better resemble conditions in the early history of the Milky Way, can not be resolved into individual stars for star - count IMFs or UV - derived mass - accretion rates.

Up to half of early breast cancers contain little clusters of microcalcifications, tiny deposits of calcium that on a mammogram look like a constellation of faint stars.

This sample is now providing the best measurement yet of when and how fast galaxy clusters stop forming stars in the early Universe.

Early in 1765, he found the star cluster M41.

This portion of the spectrum, which is more energetic than most radio waves yet less energetic than visible and infrared light, holds the key to understanding a great variety of fundamental processes, including planet and star formation, and the formation and evolution of galaxies and galaxy clusters in the early Universe.

The additional 42 entries were mostly discovered earlier, and most of them (32) are open star clusters; there are no planetary nebulae, supernova remnants, elliptical and lenticular galaxies among them, and the only spiral galaxy in this list is our own, the Milky Way.

Such a view would yield a treasure trove of information from which to deduce the early history of structure formation, and the origin of the stars, galaxies, clusters and quasars that we see today.

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.

«These findings may be telling us something very deep about the formation of star clusters and black holes in the early universe,» says Roeland Van Der Marel of the Space Telescope Science Institute in Baltimore.