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Radio Interferometric Calibration Using The SAGE Algorithm
S. Kazemi, S. Yatawatta, S. Zaroubi +3
The aim of the new generation of radio synthesis arrays such as LOFAR and SKA is to achieve much higher sensitivity, resolution and frequency coverage than what is available now, e…
Fundamental Limitations of Pixel Based Image Deconvolution in Radio Astronomy
Sarod Yatawatta
Deconvolution is essential for radio interferometric imaging to produce scientific quality data because of finite sampling in the Fourier plane. Most deconvolution algorithms are b…
Power spectrum extraction for redshifted 21-cm epoch of reionization experiments: the LOFAR case
Geraint Harker, Saleem Zaroubi, Gianni Bernardi +13
One of the aims of the Low Frequency Array (LOFAR) Epoch of Reionization (EoR) project is to measure the power spectrum of variations in the intensity of redshifted 21-cm radiation…
Foregrounds for observations of the cosmological 21 cm line: II. Westerbork observations of the fields around 3C196 and the North Celestial Pole
G. Bernardi, A. G. de Bruyn, G. Harker +11
In the coming years a new insight into galaxy formation and the thermal history of the Universe is expected to come from the detection of the highly redshifted cosmological 21 cm l…