Skip to main content
zenodoopen

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

<p>This is the data repository for the article&nbsp;Glass-Like Random Catalogues for Two-Point Estimates on the Light Cone.</p> <p>arxiv link:&nbsp;https://arxiv.org/abs/2304.02040</p> <p>DOI:</p> <p>&nbsp;</p> <p>The file grlic_data.tar.gz contains three directories: /data, /correlations, and /randoms.</p> <p>Inside the /data folder, the data catalogues used in the article are stored: in &quot;cat_part_1162568&quot; the three columns correspond to the redshift, the cosine of the polar angle, and&nbsp;the azimuthal angle, respectively. The first three columns of the &quot;cat_high_1164853&quot; and &quot;cat_low_1164853&quot; 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&nbsp;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.</p> <p>Inside the /randoms folder, the random catalogues for each of the data catalogues in /data are stored. Files beginning with &quot;part&quot; refer to randoms based on the particle catalogue, in a similar fashion the files beginning with &quot;high&quot; correspond to randoms based on the high-mass halo catalogue and those beginning with &quot;low&quot; refer to the randoms based on the low-mass halo catalogue.&nbsp;Files with &quot;..._glass&lt;x&gt;...&quot; correspond to the glass-like random catalogues, and files with &quot;..._rand&lt;x&gt;...&quot; correspond to the Poisson-sampled randoms, where &lt;x&gt; is the value of&nbsp;<span class="math-tex">\(\alpha\)</span> used. <span class="math-tex">\(\alpha\)</span> 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,&nbsp;<span class="math-tex">\(N_R = \alpha N_D\)</span>. For the glass-like randoms based on the high-mass halo catalogue, the additional suffix,&nbsp;&quot;..._deltagrid&lt;y&gt;...&quot;, refers to the number of grid-cells used in the Zeldovich approximation, where &lt;y&gt; is the number of grid cells, and &quot;..._Niter&lt;z&gt;...&quot; refers to the number of Zeldovich iterations perfomed,&nbsp;which is given by&nbsp;&lt;z&gt;. Similarly to the&nbsp;data catalogues, the three columns represent the redshift, cosine of the polar angle, and the azimuthal angle of each object in the catalogue.</p> <p>Inside the /correlations folder, there are two subdirectories: /correlations/full and /correlations/multipoles. The /correlations/full directory&nbsp;contains the raw output from CUTE&nbsp;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 &quot;&lt;type&gt;&lt;alpha&gt;_&lt;catalogues&gt;_&lt;i&gt;&quot;, where &lt;type&gt; can either be &quot;rand&quot; or &quot;glass&quot;, for either the Poisson-sampled or glass-like random catalogues, &lt;alpha&gt; is the factor&nbsp;<span class="math-tex">\(\alpha\)</span>&nbsp;already introduced above, &lt;catalogues&gt; again describes which two data catalogues have been cross- (or auto-) correlated, e.g. &quot;highlow&quot; refers to a cross-correlation between the high-mass halo catalogue and the low-mass halo catalogue, and finally &lt;i&gt; is a number between 0 and 19&nbsp;for the 20 independent measurements of the correlations.&nbsp;For the high-mass halo catalogue autocorrelations involving glass-like randoms, the additional suffix,&nbsp;&quot;..._deltagrid&lt;y&gt;...&quot;, refers to the number of grid-cells used in the Zeldovich approximation, where &lt;y&gt; is the number of grid cells, and &quot;..._Niter&lt;z&gt;...&quot; refers to the number of Zeldovich iterations perfomed,&nbsp;which is given by&nbsp;&lt;z&gt;. 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&nbsp;https://github.com/damonge/CUTE/tree/master/CUTE, section 5. It reads:</p> <pre>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). </pre> <p>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 &quot;&lt;multipole&gt;_&lt;type&gt;&lt;alpha&gt;_&lt;catalogues&gt;_mean_var&quot;, where &lt;multipole&gt; is either l0 for the monopole, l1 for the dipole, or l2 for the quadrupole. The &lt;type&gt;, &lt;alpha&gt; and &lt;catalogues&gt; are identical to what was described above for the /correlations/full subdirectory.&nbsp;&nbsp;Again, for the high-mass halo catalogue autocorrelations involving glass-like randoms, the additional suffix,&nbsp;&quot;..._deltagrid&lt;y&gt;...&quot;, refers to the number of grid-cells used in the Zeldovich approximation, where &lt;y&gt; is the number of grid cells, and &quot;..._Niter&lt;z&gt;...&quot; refers to the number of Zeldovich iterations perfomed,&nbsp;which is given by&nbsp;&lt;z&gt;. The columns in each of these files are the comoving separation d, the mean multipole&nbsp;<span class="math-tex">\(\xi_l\)</span>, and its variance&nbsp;<span class="math-tex">\(\sigma^2\)</span>of each bin.</p>

ShareScore

36/100

Overall dataset sharing score

Score breakdown

These five areas show where the dataset supports — or may limit — practical reuse.

Stewardship
4
Harmonization
4
Access
16
Reuse readiness
8
Engagement
4