Sentences with phrase «study early galaxies»
Not exact matches
An earlier study found 27 dwarf galaxies, 15 arranged in a narrow plane.
https://www.sciencedaily.com/
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.
«MUSE has the unique ability to extract information about some of the earliest galaxies in the Universe — even in a part of the sky that is already very well studied,» explains Jarle Brinchmann, lead author of one of the papers describing results from this survey, from the University of Leiden in the Netherlands and the Institute of Astrophysics and Space Sciences at CAUP in Porto, Portugal.
The MOIRCS near - infrared spectrograph is very effective for studies focused on the distant, early universe because strong emission lines from star - forming galaxies are redshifted from the optical to the near - infrared regime.
Earlier studies had suggested that the gravity of nearby stars would have ripped apart these primordial clumps, but the new simulations show that this would only happen in the crowded core of galaxies, leaving the clumps in the galactic suburbs intact (arxiv.org/abs/1006.3392).
«Every confirmation adds another piece to the puzzle of how the first generations of galaxies formed in the early universe,» said Pieter van Dokkum, the Sol Goldman Family Professor of Astronomy and chair of Yale's Department of Astronomy, who is second author of the study.
The reionization of hydrogen in the universe didn't occur like the flipping on of a light switch; it wasn't instantaneous and probably didn't happen at the same rate across the cosmos, said Anna Frebel, an assistant professor of physics at MIT who studies stars and galaxies that formed in the very early days of the universe.
«It appears that the young stars in the early galaxies like EGS - zs8 - 1 were the main drivers for this transition, called reionization,» said Rychard Bouwens of the Leiden Observatory, co-author of the study.
«Dust is ubiquitous in nearby and more distant galaxies, but has, until recently, been very difficult to detect in the very early universe,» says University of Edinburgh astrophysicist Michal Michalowski, who was not involved in the study.
The map enables scientists to study dark matter's role in influencing whether particular areas of the early cosmos lit up with stars and galaxies or remained relatively empty.
«This new insight may force us to rethink the whole cosmological context of how galaxies burn out early on and evolve into local elliptical - shaped galaxies,» said study leader Sune Toft of the Dark Cosmology Center at the Niels Bohr Institute, University of Copenhagen, Denmark.
MUSE's science goals include delving into the early epochs of the Universe to probe the mechanisms of galaxy formation and studying both the motions of material in nearby galaxies and their chemical properties.
Astronomer Matt Mountain, director of the new Gemini Telescope in Hawaii, says this future generation of gargantuan earthbound telescopes would make it possible to study individual stars in some of the earliest galaxies or determine the atmospheric gases of distant planets.
The main aim of LOFAR is to study the era in the early universe when the very first stars and galaxies were forming and ionizing all the interstellar gas around them.
Astronomers have never been able to study normal galaxies in much detail in this early epoch of the universe.
«Hubble gave us a narrow, pencil - beam view of the galaxy's core, but we are seeing thousands more stars than those spotted in earlier studies,» Calamida said.
An earlier, independent study, led by Rupal Mittal of the Rochester Institute of Technology and the Max Planck Institute for Gravitational Physics, also analyzed the star - birth rates in the same galaxies as Tremblay's sample.
The study is «an important step forward» in understanding the evolution of early galaxies, says astronomer Giovanni Fazio of the Harvard - Smithsonian Center for Astrophysics in Cambridge, Massachusetts.
A new study led by University of California, Riverside astronomers casts light on how young, hot stars ionize oxygen in the early universe and the effects on the evolution of galaxies through time.
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.
«This ultraluminous quasar with its supermassive black hole provides a unique laboratory to the study of the mass assembly and galaxy formation around the most massive black holes in the early universe.»
Rather than studying bright stars, the two students used Hubble Space Telescope data from 274 dwarf stars, which were serendipitously observed by the orbiting observatory while it was looking for the most distant galaxies in the early Universe.
«So those quasars are telling you what the ancestors of today's massive galaxies must have looked like in the early Universe,» says Marek Kukula, who studies quasars at the University of Edinburgh, UK, and was not involved in the new study.
The galaxy was detected as part of the Frontier Fields program, an ambitious three - year effort, begun in 2013, that teams Hubble with NASA's other Great Observatories — the Spitzer Space Telescope and the Chandra X-ray Observatory — to probe the early universe by studying large galaxy clusters.
The detailed properties of stars in these systems are studied to reconstruct the stellar contents of galaxies in the early stage, which is called «Galactic Archeology» or «near - field cosmology.»
It records the spectra of up to 50 objects simultaneously, especially useful for studies of galaxies in the most distant reaches, and earliest times, of the universe.
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.
In this talk, UC Berkeley's Dr. Mariska Kriek will present recent studies of galaxies in the Early Universe, and discuss our current view of how different types of galaxies may have formed and evolved over cosmic time.
LRIS also records the spectra of up to 50 objects simultaneously, especially useful for studies of clusters of galaxies in the most distant reaches, and earliest times, of the universe.
A study released Wednesday shows that the first galaxies in the early universe may have been the catalyst behind cosmic reionization.
The study used data from the Baryon Oscillation Spectroscopic Survey, or BOSS, an Earth - based sky survey that captured light from about 1.5 million galaxies to study the universe's expansion and the patterned distribution of matter in the universe set in motion by the propagation of sound waves, or «baryonic acoustic oscillations,» rippling in the early universe.
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.
With its highly sensitive IR capabilities, TMT will extend our studies of this important line emission, revealing the scale of clustering of early Lyman alpha galaxies and thereby helping to track the evolution of ionization through cosmic time.
«Star - formation studies of this galaxy provide a stepping stone to understand star formation in the early universe.»
The supermassive black holes that lie in the center of most galaxies may have far more voracious appetites than experts previously believed, according to a new study that has uncovered evidence that these behemoths shred stars 100 times more often than earlier research had suggested.
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.
But, in the early universe, their study shows that the 3C 298 galaxy is 100 times less massive than it should be given its behemoth supermassive black hole mass.
Such studies are important in understanding how the Universe evolved from an early dark period to one when galaxies began to shine.
«Every confirmation adds another piece to the puzzle of how the first generations of galaxies formed in the early universe,» said Pieter van Dokkum of the Yale University, second author of the study.
These challenges, however, have helped drive the design and early light instrumentation of the Thirty Meter Telescope (TMT), which will offer extraordinary new capabilities to study the early, distant Universe, including the first stars and galaxies.
«Future work involving this galaxy — as well as others like it that we hope to find — will allow us to study the universe's earliest objects and how the Dark Ages ended.»
By studying different models of just how mass is positioned in the galaxy cluster, astronomers could predict one more light path for Refsdal, one that would delay the light reaching the telescope until late 2015 or early 2016.
«It appears that the young stars in the early galaxies like EGS - zs8 - 1 were the main drivers for this transition, called reionization,» said study co-author, Rychard Bouwens of the Leiden Observatory, Leiden, Netherlands.
By studying reionization, we can learn a great deal about the process of structure formation in the universe, and find the evolutionary links between the remarkably smooth matter distribution at early times revealed by CMB studies, and the highly structured universe of galaxies and clusters of galaxies at redshifts of 6 and below.
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.
Between 2012 and 2016, the MOSDEF survey was allocated roughly 50 nights of MOSFIRE time on the Keck I telescope to study distant galaxies forming in the early Universe.
«We present results from an optical - infrared photometric study of early - type (E+S 0) galaxies in 19 galaxy clusters out to z = 0.9.»
Their study is indeed a smoking gun that exotic neutron star mergers were occurring very early in the history of this particular dwarf galaxy, and for that matter likely in many other small galaxies.
Previous infrared missions, from IRAS to Herschel, have revealed a great deal about the obscured... ▽ More Measurements in the infrared wavelength domain allow us to assess directly the physical state and energy balance of cool matter in space, thus enabling the detailed study of the various processes that govern the formation and early evolution of stars and planetary systems in galaxies over cosmic time.
Supermassive black holes lurking in the hearts of countless galaxies are growing faster than astronomers suspected based on earlier studies.