|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.