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Article Contents

ABSTRACT

1.INTRODUCTION

2.OBSERVATIONAL EVIDENCE FOR REIONIZATION
2.1.The Lyman alpha forest at z ≈ 2.5-6.5
2.2.The Thomson Scattering Optical depth for the Cosmic Microwave Background (CMB) Radiation
2.3.The Intergalactic Medium at z ltapprox 6
2.4.Other Observational Probes

3.THE REIONIZATION PROCESS

4.THE REDSHIFTED 21 cm AS A PROBE OF THE EoR
4.1.The 21 cm Spin and Brightness Temperatures
4.2.The Differential Brightness Temperature
4.3.The 21 cm forest at high z

5.THE REDSHIFTED 21 cm OBSERVATION
5.1.Radio Interferometry and the Calibration Problem
5.2.Current and Future EoR Experiments
5.3.Station configuration and uv coverage
5.4.Noise Issues
5.5.The Foregrounds

6.THE STATISTICS OF THE OBSERVED COSMOLOGICAL SIGNAL
6.1.The 21 cm Power Spectrum
6.2.High order statistics
6.3.Cross-correlating the LOFAR-EoR data with other data sets

7.SUMMARY

REFERENCES