Sentences with phrase «epoch of reionization»

HERA, which stands for Hydrogen Epoch of Reionization Array, will investigate a period in time when the very first generations of stars and galaxies formed, and totally altered the cosmic landscape.

Upcoming radio observations from the Low - Frequency Array, based mainly in the Netherlands, and the Hydrogen Epoch of Reionization Array — known as HERA — being built in South Africa could settle the question.

We see indirectly the effect that the starlight would have had» on the cosmic environment, says Bowman, a collaborator on the Experiment to Detect the Global Epoch of Reionization Signature, EDGES, which detected the stars» traces.

On 28 February, a group of astronomers working on the Experiment to Detect the Global Epoch of Reionization Signature (EDGES) radio telescope found that as the first stars began to form, the gas around...

In light of the dip discovery, other observatories are being retooled to study this interesting frequency, such as the Hydrogen Epoch of Reionization Array (HERA) project located in South Africa's Karoo desert.

Named the Hydrogen Epoch of Reionization Array (HERA), the project will focus especially on the billion - year process that changed the fundamental particle physics of the universe to allow stars, galaxies and their light burst out like spring flowers after a long winter.

It's part of the Experiment to Detect the Global Epoch of Reionization Signature, or EDGES.

Parsons is co-principal investigator on the Precision Array to Probe the Epoch of Reionization (PAPER), a 128 - antenna telescope in South Africa's Karoo Desert.

The Precision Array to Probe the Epoch of Reionization will help pinpoint the earliest stars» births.

In addition to emitting visible light, the stars also gave off ultraviolet (UV) radiation, which split the neutral hydrogen it encountered into electrons and protons — ionizing it once again, and thereby launching what researchers call the «epoch of reionization.»

One finalist, the Spectro - Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer (SPHEREx), will map galaxies across a large volume of the universe to find out what drove inflation, a pulse of impossibly fast expansion just after the big bang.

This era, when most of the hydrogen in the universe underwent a massive physical transformation, is known the epoch of reionization.

The epoch of reionization was «probably more like the slow roast.

The temperature of the gas surrounding the newfound quasar places it squarely in the epoch of reionization (SN: 4/1/17, p. 13), when the first stars stripped electrons from atoms of gas that filled interstellar space.

This suggests that this quasar comes from well within the epoch of reionization, and further analysis of it could yield insight into what happened during this pivotal time.

New observations show that tiny galaxies in the early universe could have triggered the epoch of reionization — a period when harsh radiation tore apart hydrogen atoms — which astronomers consider key to understanding how stars and galaxies arose from the universe's early dark void.

Much remains unknown about the epoch of reionization, such as what sources of light caused reionization.

This new quasar is also of interest to scientists because it comes from a time known as «the epoch of reionization,» when the universe emerged from its dark ages.

However, to really learn more about the epoch of reionization, scientists need more than just one or two early, distant quasars to look at.

Analysis of the newly found quasar shows that a large fraction of the hydrogen in its immediate surroundings is neutral, indicating that the astronomers have identified a source in the epoch of reionization, before enough of the first stars and galaxies have turned on to fully re-ionize the universe.

The quasar dates from a time close to the end of an important cosmic event that astronomers referred to as the «epoch of reionization»: the cosmic dawn when light from the earliest generations of galaxies and quasars is thought to have ended the «cosmic dark ages» and transformed the universe into how we see it today.

The discovery provides the first census of galaxies from what's known as the epoch of reionization.

The Bañados quasar is especially interesting, because it is from the time known as the epoch of reionization, when the universe emerged from its dark ages.

J1342 +0928 existed during the epoch of reionization.

It is surrounded by neutral hydrogen, indicating that it is from the period called the epoch of reionization, when the universe's first light sources turned on.

«The ultraluminous nature of this quasar will allow us to make unprecedented measurements of the temperature, ionization state and metal content of the intergalactic medium at the epoch of reionization.»

The astronomy team captured data from these two galaxies as they were during a period of cosmic history known as the Epoch of Reionization, when most of intergalactic space was suffused with an obscuring fog of cold hydrogen gas.

The observations showed the two galaxies in such close proximity — less than the distance from Earth to the center of our galaxy — that they were certainly on course to merge and form the largest galaxy ever observed in the Epoch of Reionization.

Infrared EBL fluctuations have been attributed to primordial galaxies and black holes at the epoch of reionization (EOR) or, alternately, intrahalo light (IHL) from stars tidally stripped from their parent galaxies at low redshift.

In a recent study led by Evgenii Chaikin (Peter the Great St. Petersburg Polytechnic University, Russia), a team of scientists has explored the Hubble Ultra Deep Field in search of high - redshift galaxies merging during the epoch of reionization, when the first galaxies formed and evolved.

They also point out the potential power of the Wide Field Infrared Survey Telescope (WFIRST)-- currently under threat under the proposed 2019 federal budget — to extend the observational horizon well into the epoch of reionization.

In the schematic timeline of the universe, the epoch of reionization is when the first galaxies and quasars began to form and evolve.

The observations peg the end of the epoch of reionization around 700 million years after the Big Bang, notes NASA.

«Though the Epoch of Reionization took place deep in the universe's past, it lies at the very frontier of our current cosmological observations.

Then, when the universe entered the «epoch of reionization» about half a billion to a billion years since its birth, the first galaxies turned on and reionized the neutral gas, marking the end of the so - called «dark ages» in the cosmic history.

Astronomers plan to study the rise of the first stars and galaxies and the epoch of reionization with the successor to both the Hubble and Spitzer telescopes, NASA's James Webb Telescope, slated for launch in 2018.

«These first galaxies likely played the dominant role in the epoch of reionization, the event that signaled the end of the universe's Dark Ages,» Kelson said.

This burst took place over 13 billion years ago (z = 8.2), or just around 630 million years after the Big Bang during the Epoch of Reionization (NASA press release, images, and animation; Science@NASA; CfA press release; ESO press release; Astronomy Picture of the Day; Rachel Courtland, New Scientist, April 28, 2009; flash video from Nature; Salvaterra et al, 2009; and Tanvir et al, 2009).

As of April 23, 2009, GRB 090423 is the earliest detected object in the universe, found earlier than GRB 080913 or 050904 during the Epoch of Reionization.

The Epoch of Reionization (EOR) refers to the period in the history of the universe during which the predominantly neutral intergalactic medium was ionized by the emergence of the first luminous sources.

All three gamma - ray bursts (GRB 090423, 080913, and 050904) occurred during the Epoch of Reionization in the early universe.

The diagram below provides a good graphical representation of the history of the universe, and where the epoch of reionization sits in the overall picture.

Much remains unknown about how and when the population of stars and galaxies grew over the ensuing hundreds of millions of years during this epoch of reionization.

So it's possible that the effort to understand the epoch of reionization just might help uncover a trove of habitable planets.

The goal of the HERA project is, most broadly, to trace those minute changes in hydrogen from about 100 million years after the Big Bang to one billion years after, when the epoch of reionization culminated with a conclusive turning on of the universe.