ERC Demo

This wikipage has been created to help running the clustering demo in the CosmoHub portal:

Once you login using the following credentials:

user: erc.cosmodark@gmail.com
password: DarkCosmo 

you will find a page with only one simulated catalog: MICECATv1.0. This catalog is one of the current public catalogs.

We have removed the rest of the public catalogs (e.g. MICECATv2.0, GAIA DR1 and DR2, etc.) in order to make this demo simpler.

First you have to click on the name MICECAT to access the catalog.

Then, there is a menu at the top to easily find the different steps of the process in order to create and analyze your custom sample.

For this particular "Demo" we have defined three different galaxy samples, which can be found in Step 0: Datasets.

To run any of the demos, you have to click on "Demo", located in the Load column in the right side of the Step 0 section.

For instance, Clustering demo 1 is a volume limited galaxy sample including a cut in absolute magnitude (or luminosity)

Once you click on "Demo" you will be directly redirected to "Step 4: Query", where the user can see the selected galaxy sample.

For "Clustering demo 1":

SELECT `d_c`, `ra`, `dec` 
FROM micecatv1_0_hpix 
WHERE `z` > 0.2 AND `z` < 0.3 AND `abs_mag_r` < -21

where 3 different columns, d_c (comoving distance in Mpc/h), ra and dec (Rigth ascension and Declination in degrees), from a redshift shell (0.2 < z < 0.3) filtered by a luminosity cut (M_r - 5 log(h) < -21), are selected.

To run the clustering analysis for this sample you have to scroll down until Step 5b: Guided Tasks.

The clustering analysis is a preliminary proof of concept. The HOD and Photo Z analysis are still to be implemented.

Now you need to fill each of the fields (in the first row) with the corresponding selected columns: e.g. RA with ra, Dec with dec and r with d_c.

In the second row you have to define the distance separation binning: minimum, maximum and the number of bins.

And finally you have to launch the job by clicking on the Request button, located at the bottom.

Once the job is finished you will receive an email in the erc.cosmodark@gmail.com account with the results.