The 21-cm hyperfine line of neutral hydrogen from the high-redshift Universe (6 < z 20) <br /><br />
promises to probe a new era in cosmology, the epoch of reionization (EoR). <br /><br />
It will provide more detailed, less ambiguous and more complete three-dimensional <br /><br />
informations than other observations of the EoR (such as the QSO absorption lines, <br /><br />
or the secondary scattering of CMB). It also traces many different physical processes. <br /><br />
The next generation radio telescopes, SKA and its precursors, will start to operate <br /><br />
within one decade, and will observe this signal. <br /><br />
Numerical simulations predicting the 21-cm emission are important to optimize <br /><br />
the design of the instruments, and interpret the observations. <br /><br />
<br /><br />
In this work, we develop a continuum radiative transfer part for the LICORICE <br /><br />
cosmological code to study the epoch of reionization, where radiative transfer is<br /><br />
an essential tool. We use a Monte-Carlo ray-tracing algorithm on an adaptive grid. <br /><br />
Several tests, both for static density field cases and radiative hydrodynamic cases <br /><br />
have been performed to validate the code. <br /><br />
Then we compute the 21-cm signal during the EoR, which provides a direct probe <br /><br />
on reionization and contains a lot of informations on the sources of ionization and <br /><br />
heating.