XXIVth IAP Colloquium

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

Monday July 7 to Friday July 11, 2008

List of JELIC's Presentation(s) ( Updated 20/01/2011 12:04:36 )

Type of presentation : poster
Title : The foregrounds simulations for the LOFAR-EoR Experiment

The LOFAR-EoR experiment is set to detect and quantify the
differential brightness temperature fluctuations of 21-cm EoR signal (z~11-6) using LOFAR's high band antennae. However there are many challenges in this task: the existence of very prominent foregrounds in the same frequency range as the EoR signal, ionospheric effects and a very complex instrumental response.

In this work we will present the simulations of the foreground maps in total intensity (Galactic diffuse synchrotron and free-free emission and extragalactic emission from radio galaxies and clusters) and polarised intensity (Galactic diffuse synchrotron emission).

Moreover, we will show that with realistic noise level (~52mK, 150MHz), expected for the LOFAR-EoR experiment, a simple polynomial fitting allows for a statistical detection of the EoR signal.

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