Sentences with phrase «of early star formation»

Not exact matches

«That would mean that this is a really rare system at an early stage of formation,» said Binder, «and we could learn a lot about how massive stars form and die by continuing to study this unique pairing.»

Taking this latest meteorite research into account, Boss revisited his earlier models of shock wave - triggered cloud collapse, extending his computational models beyond the initial collapse and into the intermediate stages of star formation, when the Sun was first being created, an important next step in tying together Solar System origin modeling and meteorite sample analysis.

In the early stages of their formation, stars are surrounded by rotating disks of gas and dust.

Many other potential applications of this dataset are explored in the series of papers, and they include studying the role of faint galaxies during cosmic reionisation (starting just 380,000 years after the Big Bang), galaxy merger rates when the Universe was young, galactic winds, star formation as well as mapping the motions of stars in the early Universe.

An earlier sideswiping encounter between the two helped to trigger their astounding bursts of star formation.

Isolated objects must have formed in a different way, with one possibility being that they had an early burst of star formation that used up the available gas resources.

This is the first direct observational evidence that at least some of the earliest so - called «dead» galaxies — where star formation stopped — somehow evolve from a Milky Way - shaped disk into the giant elliptical galaxies we see today.

This close - up view should help astronomers understand how collisions, which were once far more common than they are now, influenced star formation and the evolution of galaxies in the early universe.

Forming 4,000 stars per year and putting our own galaxy to shame (the Milky Way makes about 4 each year), GOODS 850 - 5 is reshaping astronomers» ideas about the rate of galaxy formation in the early Universe

The number will help reveal the efficiency of star formation in the early universe, and could forecast exactly how far back in cosmic time Webb will be able to see.

Theorists have long suspected that the universe's very first stars were massive, because early gas clouds favored the formation of heavy stars.

And Laporte concludes: «Further measurements of this kind offer the exciting prospect of tracing early star formation and the creation of the heavier chemical elements even further back into the early Universe.»

Given the chemical composition, temperature, and density of the gas, «the star formation in this galaxy must have happened at a rate five times faster than that in the Milky Way,» he says, which suggests why the early galaxies could form so quickly.

Today, this dust is plentiful and is a key building block in the formation of stars, planets and complex molecules; but in the early Universe — before the first generations of stars died out — it was scarce.

This week an international team of astronomers reports the first multiple - star system to be observed during the earliest stage of formation.

The data on abundance of carbon monoxide and hydrogen provide «a new window into star formation in the early universe,» says David Spergel of Princeton University.

Some astronomers believe that, in the early cosmos, it formed halos that compressed gas and dust, sparking the formation of stars.

Astrophysicist Edwin Turner of Princeton University thinks the implications are «potentially quite important» for understanding how dust clouds can mask the true star - formation rate of the early universe.

They say the number of stars in a system is determined during the earliest stage of star formation but critical processes occurring then are usually hidden by dense clouds of dust and gas.

The finding, published in the February 11 issue of Nature, confirms the commonly held supposition that the vigorous star formation in the young universe largely stems from an early bounty of raw materials, rather than a more efficient process of star production.

In research published this week in Astrophysical Journal Letters, Dr Zoe Leinhardt and colleagues from Bristol's School of Physics have completed computer simulations of the early stages of planet formation around the binary stars using a sophisticated model that calculates the effect of gravity and physical collisions on and between one million planetary building blocks.

«This is important because it is the earliest phase of star formation we have found in this highly hostile environment,» Yusef - Zadeh said.

«Infant stars found surprisingly near galaxy's supermassive black hole: Earliest phase of star formation ever observed in highly hostile environment.»

The team used several hundred thousand compute hours at NERSC to produce a series of 2D and 3D simulations that helped them examine the role of dark matter halo photoevaporation — where energetic radiation ionizes gas and causes it to disperse away from the halo — played not just in the early formation of stars but also the assembly of later galaxies.

«A galaxy at its very early stages of life, full of dust and gas, has a very high star formation rate but at the same time it still contains very few stars because it hasn't had the time to form them yet, that's all.»

The dwarf galaxy also is of interest because it provides clues to how the early simple universe became re-ionized by early star formation, moving it from the so - called cosmic Dark Ages of neutral gases to the development of the complexly structured universe now in existence, where the gas between galaxies is ionized.

ALMA discovers remarkably early signs of low - mass star formation near the supermassive black hole at the center the Milky Way.

«We studied the chemistry of the gas and dust cloud surrounding the early protostar (an early stage of star formation).

The process of star formation must therefore have started very early in the history of the universe and be associated with the formation of dust.

For many years, astronomers have been searching for accretion disks in the earliest phase of star formation, in order to determine their structure, how they are formed, and how the accretion process takes place.

«In the earliest phase of star formation, there are theoretical difficulties in producing such a disk, because magnetic fields can slow down the rotation of collapsing material, preventing such a disk from forming around a very young protostar.

So, this image shows the very early stage of planet formation around a baby star.

This new image not only confirms the formation of an accretion disk around a very young protostar, but also reveals the vertical structure of the disk for the first time in the earliest phase of star formation.

«When such molecules were first found in the protoplanetary disk around a star in a later phase of star formation, we wondered if they could have formed earlier.

These molecules are the building blocks of life, and they are already there in the disk atmosphere around the baby star in the earliest phase of star formation.»

The level of star formation is much smaller because interstellar gas and dust has been reduced during earlier stages of the collision.

It provides information on the process of formation of these early stars and galaxies.

Scientists believe that gas and dust may have been stripped by nearby galaxies or from an early burst of star formation that used up all the gas.

Its ability to detect planets on the other side of the galaxy has revamped our understanding of how solar systems form, which types of stars tend to pair with which types of planets, and shed light on the early dynamics of solar system formation.

Lloyd, J.P., Lunine, J.I., Mamajek, E., Spiegel, D.S., Covey, K.R., Shkolnik, E.L., Walkowicz, L., Chavez, M., Bertone, E., & Olmedo Aguilar, J.M., Targeting Young Stars with Kepler: Planet Formation, Migration Mechanisms and the Early History of Planetary Systems, eprint arXiv: 1309 - 1520, 2013

In addition to giving astronomers a fascinating glimpse of a huge burst of star formation in the early Universe, the new information about the Cloverleaf helps answer a longstanding question about bright galaxies of that era.

These lightweight nuclei are probably produced by the breakdown, or spallation, of heavier elements, such as iron and magnesium, by high - energy particles in stellar atmospheres or in the early stages of star formation.

Though astronomers have cataloged thousands of planets orbiting other stars, the very earliest stages of planet formation are elusive because nascent planets are born and embedded inside vast, pancake - shaped disks of dust and gas encircling... Read more

Ryan A. Loomis, a co-author of the study, adds: «Methanol in gaseous form in the disc is an unambiguous indicator of rich organic chemical processes at an early stage of star and planet formation.

The research activity of our group «Interstellar Medium: star and planet formation» is focused in the early stages of the star and planet formation process, with special emphasis on the role of magnetic field at different scales.

By developing and bringing to bear innovative spectroscopic and high resolution imaging instruments on large ground - based telescopes and space telescopes, he and his team have been studying massive black holes in the centers of galaxies (including our own), galactic star formation over cosmic time, and the evolution of galaxies in the Early Universe.

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.

«Star - formation studies of this galaxy provide a stepping stone to understand star formation in the early universe.&raStar - formation studies of this galaxy provide a stepping stone to understand star formation in the early universe.&rastar formation in the early universe.»

The GBT will be used to study everything from the formation of galaxies in the early universe, to the chemical make - up of the dust and gas inside galaxies and in the voids that separate them, to the birth processes of stars.

Models of the formation of stars in the pristine gas of early times suggest that star formation was once dramatically different from the stellar births that happen in the local Universe.