PAU Data Management (PAUdm)


The PAU Data Management System consists of the hardware and software that transform the raw data obtained at the telescope into scientific catalogs ready for analysis.

A prototype of the system has been developed in 2009. It uses a combination of public (e.g. Terapix) and custom packages implemented in a Python environment.

The first stage of the system is the Community Nightly Processing Pipeline used for all the data taken with PAUCam. For the PAU Survey specifically an extension to this pipeline follows, namely the PAU Single-epoch Processing Pipeline (scheme below).



PAU Simulations (PAUSim)


Starting from the MICE dark matter simulations, produced at the Marenostrum Supercomputer of the Barcelona Supercomputer Center (BSC) and stored at PIC, the dark matter halos are populated with galaxies using halo occupation distributions (HOD), with realistic properties for PAUcam.

Realistic spectral energy distribution (SED) for each galaxy are generated. This provides simulated input for a new photo-z code that has been developed to forecast and optimize the PAU Survey. Images created from these catalogs are generated to further test the PAUdm pipeline.

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The Single-epoch Processing Pipeline provides calibrated object catalogues that meet the requirements of the PAU Survey.

The integrity of the data data simulation and analysis is monitored by a Quality Analysis Framework, which is also part of PAUdm.