skypy.halo.abundance_matching.vale_ostriker

skypy.halo.abundance_matching.vale_ostriker(halo_kwargs, subhalo_kwargs, galaxy_kwargs)

Vale & Ostriker abundance matching. Generate matched arrays of (sub)halos masses and galaxy absolute magnitudes following the abundance matching model in Vale & Ostriker (2004).

Parameters

halo_kwargsdict

Dictionary of keyword arguments for skypy.halo.press_schechter.

subhalo_kwargsdict

Dictionary of keyword arguments for skypy.halo.number_subhalos and skypy.halo.subhalo_mass_sampler.

galaxy_kwargsdict

Dictionary of keyword arguments for skypy.galaxy.schechter_lf_magnitude.

Returns

massarray_like

Array of (sub)halo masses in units of solar masses.

grouparray_like

Array of halo group ID numbers.

parentarray_like

Array of boolean values indicating if the halo is a parent.

magnitudearray_like

Array of galaxy absolute magnitudes.

References

1

Vale A., Ostriker J. P., 2004, MNRAS, 353, 189 ..