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Reionization information


Phases of the reionization

In the fields of Big Bang theory and cosmology, reionization is the process that caused electrically neutral atoms in the universe to reionize after the lapse of the "dark ages".

Reionization is the second of two major phase transitions of gas in the universe[citation needed] (the first is recombination). While the majority of baryonic matter in the universe is in the form of hydrogen and helium, reionization usually refers strictly to the reionization of hydrogen, the element.

It is believed that the primordial helium also experienced the same phase of reionization changes, but at different points in the history of the universe. This is usually referred to as helium reionization.

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Reionization

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cosmology, reionization is the process that caused electrically neutral atoms in the universe to reionize after the lapse of the "dark ages". Reionization is...

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Quasar

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mechanism for reionization to occur as galaxies form. Despite this, current theories suggest that quasars were not the primary source of reionization; the primary...

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Chronology of the universe

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Despite being reionized, the universe remained largely transparent during reionization due how sparse the intergalactic medium was. Reionization gradually...

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Hydrogen line

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ages" from recombination (when stable hydrogen atoms first formed) to reionization. Including the redshift, this line will be observed at frequencies from...

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Hydrogen Epoch of Reionization Array

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Epoch of Reionization Array (HERA) is a radio telescope dedicated to observing large scale structure during and prior to the epoch of reionization. HERA...

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James Webb Space Telescope

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years cosmic time). Hubble is unable to see further back than very early reionization at about z≈11.1 (galaxy GN-z11, 400 million years cosmic time). The design...

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Experiment to Detect the Global EoR Signature

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Observatory, with infrastructure provided by CSIRO. EoR stands for epoch of reionization, a time in cosmic history when neutral atomic hydrogen gas became ionised...

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Albert Einstein

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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Stephen Hawking

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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Timeline of the early universe

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ordinary matter particles fall into the structures created by dark matter. Reionization begins: smaller (stars) and larger non-linear structures (quasars) begin...

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Universe

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non metallic and short-lived. They were responsible for the gradual reionization of the universe between about 200–500 million years and 1 billion years...

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Astronomy

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earliest stars, the Population III stars. These massive stars triggered the reionization process and are believed to have created many of the heavy elements in...

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Square Kilometre Array

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facilities were already operating: MeerKAT and the Hydrogen Epoch of Reionization Array (HERA) in South Africa, the Australian SKA Pathfinder (ASKAP) and...

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Dark matter

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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Wilkinson Microwave Anisotropy Probe

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determined the times of important universal events, including the redshift of reionization, 17±4; the redshift of decoupling, 1089±1 (and the universe's age at...

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Intensity mapping

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Meiksin & Rees propose intensity mapping as a way of probing the Epoch of Reionization. Dec 2001: Bharadwaj & Sethi propose using intensity maps of neutral...

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Galileo Galilei

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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List of oldest stars

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about 13.8 billion years. Some of these are among the first stars from reionization (the stellar dawn), ending the Dark Ages about 370,000 years after the...

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Precision Array for Probing the Epoch of Reionization

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statistical detection of the 21 cm reionization signal. Given the stringent dynamic range requirements for detecting reionization in the face of foregrounds that...

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Physical cosmology

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measure the distribution of matter in the distant universe and to probe reionization include: The Lyman-alpha forest, which allows cosmologists to measure...

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Accelerating expansion of the universe

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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Sangeeta Malhotra

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pioneered the technique of using Lyman alpha galaxies to study cosmological reionization, leading a 2004 paper that demonstrated that the gas between galaxies...

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Religious interpretations of the Big Bang theory

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matter Structure Shape of the universe Galaxy filament · Galaxy formation Large quasar group Large-scale structure Reionization · Structure formation...

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