Sentences with phrase «such early galaxies»

Astronomers have long debated whether such early galaxies could have provided enough radiation to warm the hydrogen that cooled soon after the big bang.

It is very surprising and it is the first time that dust has been found in such an early galaxy.

Not exact matches

Gal - Yam thinks the conditions in the host galaxy could be like those in the early universe, when theory says such giant stars were born and died in great numbers, seeding the universe with heavy elements.

Such views suggest that tiny galaxies in the early universe played a crucial role in cosmic reionization — when ultraviolet radiation stripped electrons from hydrogen atoms in the cosmos.

Finding so many primordial galaxies allows scientists to pin down crucial questions about the newborn universe, such as when light from early stars and galaxies penetrated the early cosmic gloom.

Marijn Franx, a member of the team from the University of Leiden highlights: «The discovery of GN - z11 was a great surprise to us, as our earlier work had suggested that such bright galaxies should not exist so early in the Universe.»

Finding such a galaxy early in the history of the universe challenges the current understanding of how massive galaxies form and evolve, say researchers.

«Among other things,» he writes, «I learned that merging galaxies can fire up to ultraluminous status early in the encounter, against the prevailing wisdom that put such activity only late in the final merger stage.»

«To find such an event in early type galaxies where star formation is rare is an incredibly fortunate find.

He did not expect to find any massive galaxies earlier than about 9 billion years ago because theoretical models predict that such large objects form last.

Conroy suspects that violent conditions in the early universe — such as galaxy mergers — shocked and compressed gas and dust in particular areas, creating agglomerations of thousands of stars in particular areas.

Earlier research from Hubble's Cosmic Origins Spectrograph (COS)- Halos program studied 44 distant galaxies and found halos like Andromeda's, but never before has such a massive halo been seen in a neighboring galaxy.

GREEN GALAXIES Galaxies in the early universe emitted lots of green light, such as seen in this nebula (NGC 6826) in the MiGALAXIES Galaxies in the early universe emitted lots of green light, such as seen in this nebula (NGC 6826) in the MiGalaxies in the early universe emitted lots of green light, such as seen in this nebula (NGC 6826) in the Milky Way.

Also, as pointed out by Turner earlier this year, an older Universe gives the favoured cold dark matter model time to make the large collections of galaxies seen today, without bringing in any other «fixes», such as the addition of hot dark matter (New Scientist, Science, 16 July).

Several ground - based microwave telescopes, such as the South Pole Telescope, are tracking how the structure of very distant galaxy clusters grew in the early Universe under the influence of gravity.

Supermassive black holes in the cores of galaxies are thought to fatten slowly over eons, so finding such a heavyweight so early in the history of the universe is «really pushing it,» he says.

On the other hand, if there are 100 billion suitable planets in our galaxy, if the origin of life is highly probable, if there are billions of years of evolution available on each such planet and if even a small fraction of technical civilizations pass safely through the early stages of technological adolescence, the number of technological civilizations in the galaxy today might be very large.

«We can explore such original galaxies in full detail and probe the conditions of the early universe,» said Ignacio Trujillo, of the Instituto de Astrofisica de Canarias at the University of La Laguna, Spain.

Now the researchers hope that future observations of a large number of distant galaxies using the ALMA telescopes could help unravel how frequently such evolved galaxies occur in this very early epoch of the history of the universe.

The proximity of UGC 1382 will be a boon to revealing other features of such elusive giants in addition to understanding other seemingly normal early galaxies.

What the team directly observed was the last wave of Population III stars, suggesting that such stars should be easier to find than previously thought: they reside amongst regular stars, in brighter galaxies, not just in the earliest, smallest, and dimmest galaxies, which are so faint as to be extremely difficult to study.

Astronomers believe that such collisions between galaxies were common in the early universe when galaxies were closer together.

Because distances between galaxies are so vast today, such mergers were thought to be rare.36 But the Hubble telescope, in its furthest look back in time, has photographed dozens of galaxies in the process of colliding.37 Obviously, galaxies formed quickly in the early, much more compact universe.

Such studies are important in understanding how the Universe evolved from an early dark period to one when galaxies began to shine.

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.

Because the discovery of such an early source with powerful Lyman - alpha is somewhat unexpected, it provides new insight into the manner by which galaxies contributed to the process of reionization.

The question astronomers have been asking is whether such starbursts in the early universe were the result of having an overabundant gas supply, or whether galaxies converted gas more efficiently.

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.

«Until ALMA, we've never been able to see the formation of galaxies in such detail, and we've never been able to measure the movement of gas in galaxies so early in the Universe's history,» said co-author Stefano Carniani, from Cambridge's Cavendish Laboratory and Kavli Institute of Cosmology.

Such computers can help discover planets and galaxies, diagnose diseases, and do many tasks earlier than usual.