17–21 Aug 2009
AlbaNova University Centre
Europe/Stockholm timezone

Power spectrum analysis of the LOFAR EoR data

18 Aug 2009, 09:30
30m
FD 5 (AlbaNova University Centre)

FD 5

AlbaNova University Centre

Roslagstullsbacken 21, Stockholm
Detecting the 21cm signal from the epoch of reionization

Speaker

Prof. Saleem Zaroubi (Kapteyn Astronomical Institute)

Description

We present a power spectrum analysis of the simulation LOFAR data. The simulated data include cosmological signal, foreground contamination, instrument response (UV coverage, observational time, etc...) and system noise. The foregrounds are fitted out using the Wp method and the power spectrum analysis is performed on the residuals. We show that after 400 hundred hours of observations with multiple beams we can reconstruct the input power spectrum reasonably well. We show also that within the first 3 years we will be able to constrain the power spectrum with a high accuracy.

Primary authors

Geraint Harker (Kapteyn Astronomical Institute) Prof. Saleem Zaroubi (Kapteyn Astronomical Institute)

Presentation materials