This is the lightcone mock galaxy catalogs in Horizon Run 4 simulation (Kim, Park, L'Huillier & Hong 2015) created by the most bound halo particle(MBP)-galaxy correspondence model (Hong, Park & Kim 2016).
Horizon Run 4 simulation is a cosmological N-body simulation with the following properties:
The entire full-sky lightcone data up to z = 1.5 is split with 52 subsamples with comoving distance.
Each data file has a name as
Each data file is written as HDF5 file format containing the following properties:
Note that the mass of the galaxy is not the FoF halo mass, subhalo mass, or the stellar mass. It is a rather artificial mass-like quantity that you can use as a proxy of galaxy luminosity in a way that brighter galaxies have higher mass.
A typical example of using mass is to make a volume-limited galaxy sample up to a certain brightness threshold.
However, note that the above example assumes that the both completeness of observation up to a given brightness threshold and the correlation between the given types of brightness and halo/stellar mass are very high.
Since the box size of the Horozin Run 4 simulation is 3150 Mpc/h, the maximum radius of a sphere that fits within the simulation box is 1575 Mpc/h, which corresponds to the comoving distance at z = 0.6. Lightcone volume with higher redshift should be made, therefore, by adopting periodic boundary condition.
Therefore, if you need to avoid such effect, you may need to either focus only on lower redshifts or use partial sky area.
If you have questions on the above issues, please contact Dr. Sungwook E. Hong.
Please cite the following references if you use the above mock galaxy catalog.
If you have a question, please contact Dr. Sungwook E. Hong.