| Abstract : | Majority of the galaxies detected at high redshifts (z > 6) till date are based either on the Lyman-break colour selection techniques, called the Lyman-break galaxies (LBGs) or on the narrow-band searches of the Lyman-alpha line, called the Lyman-alpha emitters (LAEs). The stars inside these galaxies are believed to be the main drivers of reionization, although we still do not understand their contribution unambiguously. One possible way to answer some of these questions is by studying their large-scale properties. For example, the abundance and clustering of these galaxies depend on how they populate the underlying dark matter (DM) haloes. We model the large-scale properties of the high-z LBGs by populating the DM haloes in a N-body simulation. The model parameters are then constrained by comparing the simulated mock galaxies with available observations, like the galaxy UV luminosity function and the two-point galaxy correlation function. Such 'mock’ galaxy catalogs are expected to be invaluable in constraining cosmic reionization in the era of JWST and SKA, by means of cross-correlation studies of high-z galaxies with redshifted 21-cm signal maps. Results from this ongoing work will be presented here. |
