Mock LAMOST galaxy redshift surveys: I. Methodology

For a wide range of cold dark matter models of galaxy formation, we present a general method for constructing mock LAMOST galaxy redshift surveys usin g cosmological N-body simulation. We use the two-parameter Lagrangian biase d model for the construction, take into account the radial selection and su rvey geometry and use a local morphology-density relation to assign morphol ogical types to the galaxies. We test the mock samples by comparing their a ngular correlation functions both for the whole catalogue and for different morphological types with those of the APM bright galaxy catalogue. The res ult shows an excellent agreement between the mock catalogue as a whole and the observations; but the E/S0 galaxies of the mock sample are unable to re produce the overall amplitude of the observed correlation. The mock catalog ue should be useful when designing redshift surveys and provide a valuable aid in developing new statistical estimators and algorithm for quantifying the large scale structure of the universe.