The PAU Survey: Operation and orchestration of multi-band survey data

Abstract

The Physics of the Accelerating Universe (PAU) Survey is an international project for the study of cosmological parameters associated with Dark Energy. PAU's 18-CCD camera (PAUCam), installed at the prime focus of the William Herschel Telescope at the Roque de los Muchachos Observatory (La Palma, Canary Islands), scans part of the northern sky, to collect low resolution spectral information of millions of galaxies with its unique set of 40 narrow-band filters in the optical range from 450 nm to 850 nm, and a set of 6 standard broad band filters. The PAU data management (PAUdm) team is in charge of treating the data, including data transfer from the observatory to the PAU Survey data center, hosted at Port d'Informació Científica (PIC). PAUdm is also in charge of the storage, data reduction and, finally, of making the results available to the scientific community. We describe the technical solutions adopted to cover different aspects of the PAU Survey data management, from the computing infrastructure to support the operations, to the software tools and web services for the data process orchestration and exploration. In particular we will focus on the PAU database, developed for the coordination of the different PAUdm tasks, and to preserve and guarantee the consistency of data and metadata.

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Cited by in corpus (13)

• The PAU Survey: An improved photo-$z$ sample in the COSMOS field
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• The Physics of the Accelerating Universe Camera
• The PAU Survey: Measurement of Narrow-band galaxy properties with Approximate Bayesian Computation
• The PAU survey: Estimating galaxy photometry with deep learning
• The PAU Survey: Background light estimation with deep learning techniques
• The PAU Survey: galaxy stellar population properties estimates with narrowband data
• The PAU Survey: Narrow-band image photometry
• The PAU Survey: Photometric redshift estimation in deep wide fields
• Combining cosmic shear data with correlated photo-$z$ uncertainties: constraints from DESY1 and HSC-DR1
• The PAU Survey: Close galaxy pairs identification and analysis
• Cosmic distance determination from photometric redshift samples using BAO peaks only
• Baryon Acoustic Oscillations in tomographic Angular Density and Redshift Fluctuations