The Outer Stellar Mass of Massive Galaxies: A SimpleTracer of Halo Mass with Scatter Comparable to Richness and Reduced Projection Effects

These are the data for reproducing the results of the publication titled "The Outer Stellar Mass of Massive Galaxies: A Simple Tracer of Halo Mass with Scatter Comparable to Richness and Reduced Projection Effects" by Song Huang et al.

Please see the Python scripts and Jupyter notebooks provided in the jianbing repo for examples about how to use these data files. And please contact dr.guangtou@gmail.com if you have any questions about these data.

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Here is a brief description of all the files:

Data from N-body simulation:

• mdpl2_halos_0.7333_reduced_logmvir_13.npy
  • Basic information about the dark matter halos from MDPL2 simulation
  • For scale factor = 0.7333 (or z~0.4).
  • Only for halos with logMvir > 13.0.
• mdpl2_particles_0.7333_72m.npy
  • Particle catalog of the a=0.7333 snapshot from MDPL2
  • This is a down-sampled version with 72 million particles.
• topn_theory_demo.pkl
  • These are the data used to create the theoretical demo of the TopN test.
  • It is used for making the figures in this notebook.

Catalogs of Galaxies or Galaxy Clusters:

• camira_s16a_cluster_use_bsm.fits
  • The HSC S16A CAMIRA cluster catalog.
• redmapper_hsc_s16a_cluster_bsm.fits
  • The HSC S16A redMaPPer cluster catalog.
• redmapper_sdss_cluster_bsm.fits
  • The SDSS DR8 redMaPPer clusters in the HSC S16A footprint.
• s16a_massive_logm_11.2.fits
  • 0.2 <z < 0.5 massive galaxies in the HSC S16A footprint.

Galaxy-Galaxy Lensing Data:

• s16a_weak_lensing_medium.hdf5
  • A compilation of the weak lensing data to calculate the DeltaSigma profiles.
  • This includes the weak lensing source catalog, photometric redshift calibration file, and the random catalog.
  • "medium" here means we applied the medium criteria for selecting source galaxies. Please refer to Speagle et al. (2019) for the exact meaning of these criteria.
  • We also have a "basic" and "strict" version. Please send your request if you need them.
• topn_public_s16a_medium_precompute.hdf5
  • A compilation of pre-computed lensing profiles for each individual object in a different galaxy or cluster samples for the TopN test.
  • These are the data used to create the stacked DeltaSigma profiles.
  • We also provide the "strict" and the "basic" versions if you want to test the robustness of the TopN tests against the different selections of source galaxies in weak lensing measurements. You just need these files to generate the stacked DeltaSigma profiles.