Glass-Like Random Catalogues for Two-Point Estimates on the Light Cone (Data Repository)

This is the data repository for the article Glass-Like Random Catalogues for Two-Point Estimates on the Light Cone.

arxiv link: https://arxiv.org/abs/2304.02040

DOI:

The file grlic_data.tar.gz contains three directories: /data, /correlations, and /randoms.

Inside the /data folder, the data catalogues used in the article are stored: in "cat_part_1162568" the three columns correspond to the redshift, the cosine of the polar angle, and the azimuthal angle, respectively. The first three columns of the "cat_high_1164853" and "cat_low_1164853" catalogues correspond to the same properties for the high-mass and low-mass halos, respectively. In addition to that, these files also contain additional information about the halos: the number of particles (4th column), their M_200b mass (5th column) and their parent ID (6th colum), which is -1 if the halo is not a subhalo.

Inside the /randoms folder, the random catalogues for each of the data catalogues in /data are stored. Files beginning with "part" refer to randoms based on the particle catalogue, in a similar fashion the files beginning with "high" correspond to randoms based on the high-mass halo catalogue and those beginning with "low" refer to the randoms based on the low-mass halo catalogue. Files with "..._glass<x>..." correspond to the glass-like random catalogues, and files with "..._rand<x>..." correspond to the Poisson-sampled randoms, where <x> is the value of \(\alpha\) used. \(\alpha\) is the factor by which the number of objects in the data catalogue is multiplied to get the number of objects in the random catalogues, \(N_R = \alpha N_D\). For the glass-like randoms based on the high-mass halo catalogue, the additional suffix, "..._deltagrid<y>...", refers to the number of grid-cells used in the Zeldovich approximation, where <y> is the number of grid cells, and "..._Niter<z>..." refers to the number of Zeldovich iterations perfomed, which is given by <z>. Similarly to the data catalogues, the three columns represent the redshift, cosine of the polar angle, and the azimuthal angle of each object in the catalogue.

Inside the /correlations folder, there are two subdirectories: /correlations/full and /correlations/multipoles. The /correlations/full directory contains the raw output from CUTE for each correlated pair of catalogues. For example, the subdirectory /correlations/full/low_low contains the outputs for the low-mass halo autocorrelation, or the subdirectory /correlations/full/high_part contains the outputs for the cross-correlation between the high-mass halo catalogue and the particle catalogue. The naming convention of these files is "<type><alpha>_<catalogues>_<i>", where <type> can either be "rand" or "glass", for either the Poisson-sampled or glass-like random catalogues, <alpha> is the factor \(\alpha\) already introduced above, <catalogues> again describes which two data catalogues have been cross- (or auto-) correlated, e.g. "highlow" refers to a cross-correlation between the high-mass halo catalogue and the low-mass halo catalogue, and finally <i> is a number between 0 and 19 for the 20 independent measurements of the correlations. For the high-mass halo catalogue autocorrelations involving glass-like randoms, the additional suffix, "..._deltagrid<y>...", refers to the number of grid-cells used in the Zeldovich approximation, where <y> is the number of grid cells, and "..._Niter<z>..." refers to the number of Zeldovich iterations perfomed, which is given by <z>. The format of the files is the standard CUTE format for the 3D correlation using binning in (mu,r), i.e. see the readme of https://github.com/damonge/CUTE/tree/master/CUTE, section 5. It reads:

For the 3-D correlation functions the output file has 7 columns with
   x1   x2   xi(x1,x2)   D1D2(x1,x2)   D1R2(x1,x2)   R1D2(x1,x2)   R1R2(x1,x2)
where (x1,x2) is either (pi,sigma) or (mu,r).

The /correlations/multipoles subdirectory contains the estimated mean multipoles and their variance derived from the 20 individual correlation measurements for each data catalogue and type of random catalogue. Similarly to the /correlations/full subdirectory, it contains a separate directory for each pair of data catalogue for which the correlation was estimated. The files are named according to "<multipole>_<type><alpha>_<catalogues>_mean_var", where <multipole> is either l0 for the monopole, l1 for the dipole, or l2 for the quadrupole. The <type>, <alpha> and <catalogues> are identical to what was described above for the /correlations/full subdirectory.  Again, for the high-mass halo catalogue autocorrelations involving glass-like randoms, the additional suffix, "..._deltagrid<y>...", refers to the number of grid-cells used in the Zeldovich approximation, where <y> is the number of grid cells, and "..._Niter<z>..." refers to the number of Zeldovich iterations perfomed, which is given by <z>. The columns in each of these files are the comoving separation d, the mean multipole \(\xi_l\), and its variance \(\sigma^2\)of each bin.