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Proceedings Paper

The PAU camera and the PAU survey at the William Herschel Telescope
Author(s): Francisco J. Castander; Otger Ballester; Anne Bauer; Laia Cardiel-Sas; Jorge Carretero; Ricard Casas; Javier Castilla; Martin Crocce; Manuel Delfino; Martin Eriksen; Enrique Fernández; Pablo Fosalba; Juan García-Bellido; Enrique Gaztañaga; Ferran Grañena; Carles Hernández; Jorge Jiménez; Luis López; Pol Martí; Ramon Miquel; Christian Neissner; Cristobal Padilla; Cristobal Pío; Rafael Ponce; Eusebio Sanchez; Santiago Serrano; Ignacio Sevilla; Nadia Tonello; Juan de Vicente
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Paper Abstract

The Physics of the Accelerating Universe (PAU) is a project whose main goal is the study of dark energy. For this purpose, a new large field of view camera (the PAU Camera, PAUCam) is being built. PAUCam is designed to carry out a wide area imaging survey with narrow and broad band filters spanning the optical wavelength range. The PAU Camera is now at an advance stage of construction. PAUCam will be mounted at the prime focus of the William Herschel Telescope. With the current WHT corrector, it will cover a 1 degree diameter field of view. PAUCam mounts eighteen 2k×4k Hamamatsu fully depleted CCDs, with high quantum efficiency up to 1 μm. Filter trays are placed in front of the CCDs with a technologically challenging system of moving filter trays inside the cryostat. The PAU Camera will use a new set of 42 narrow band filters ranging from ~4400 to ~8600 angstroms complemented with six standard broad-band filters, ugrizY. With PAUCam at the WHT we will carry out a cosmological imaging survey in both narrow and broad band filters that will perform as a low resolution spectroscopic survey. With the current survey strategy, we will obtain accurate photometric redshifts for galaxies down to iAB~22.5 detecting also galaxies down to iAB~24 with less precision in redshift. With this data set we will obtain competitive constraints in cosmological parameters using both weak lensing and galaxy clustering as main observational probes.

Paper Details

Date Published: 24 September 2012
PDF: 9 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84466D (24 September 2012); doi: 10.1117/12.926234
Show Author Affiliations
Francisco J. Castander, Institut de Ciències de l’Espai, CSIC (Spain)
Otger Ballester, Institut de Física d’Altes Energies (Spain)
Anne Bauer, Institut de Ciències de l’Espai, CSIC (Spain)
Laia Cardiel-Sas, Institut de Física d’Altes Energies (Spain)
Jorge Carretero, Port d’Informació Científica (Spain)
Ricard Casas, Institut de Ciències de l’Espai, CSIC (Spain)
Javier Castilla, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
Martin Crocce, Institut de Ciències de l’Espai, CSIC (Spain)
Manuel Delfino, Port d’Informació Científica (Spain)
Martin Eriksen, Institut de Ciències de l’Espai, CSIC (Spain)
Enrique Fernández, Institut de Física d’Altes Energies (Spain)
Pablo Fosalba, Institut de Ciències de l’Espai, CSIC (Spain)
Juan García-Bellido, Instituto de Física teórica, CSIC (Spain)
Enrique Gaztañaga, Institut de Ciències de l’Espai, CSIC (Spain)
Ferran Grañena, Institut de Física d’Altes Energies (Spain)
Carles Hernández, Institut de Física d’Altes Energies (Spain)
Jorge Jiménez, Institut de Física d’Altes Energies (Spain)
Luis López, Institut de Física d’Altes Energies (Spain)
Pol Martí, Institut de Física d’Altes Energies (Spain)
Ramon Miquel, Institut de Física d’Altes Energies (Spain)
ICREA (Spain)
Christian Neissner, Port d’Informació Científica (Spain)
Cristobal Padilla, Institut de Física d’Altes Energies (Spain)
Cristobal Pío, Institut de Física d’Altes Energies (Spain)
Rafael Ponce, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
Eusebio Sanchez, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
Santiago Serrano, Institut de Ciències de l’Espai, CSIC (Spain)
Ignacio Sevilla, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
Nadia Tonello, Port d’Informació Científica (Spain)
Juan de Vicente, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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