XXIVth IAP Colloquium

Far away : light in the young universe at redshift beyond three

Monday July 7 to Friday July 11, 2008

List of LOEB's Presentation(s) ( Updated 20/01/2011 12:07:43 )

Precise if your presentation is oral or a poster : Review
Title of your presentation : Overview on Reionization

The intergalactic medium is a powerful probe of both fundamental physics (inflation, dark matter, and dark energy) and astrophysics (formation of stars and black holes). The earliest generation of stars is thought to
have reionized the universe in the first hundreds of millions of years after the big bang. Knowing exactly when and how the reionization process occurred is a primary goal in cosmology. A wide variety of instruments are
currently under design to address this goal, including large-aperture infrared telescopes on the ground or in space (JWST), and low-frequency radio telescope arrays for the detection of red shifted 21-cm radiation. Numerical simulations of reionization are computationally challenging, as they require radiative transfer across large cosmological volumes as well as sufficiently high resolution to identify the sources of the ionizing radiation in the infant universe. Upcoming observations and the challenges
for theoretical models and numerical simulations will motivate intense work in this field over the next decade.

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