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Proceedings Paper

Calibration plan for J-PAS and J-PLUS surveys
Author(s): N. Gruel; M. Moles; J. Varela; D. Cristóbal-Hornillos; A. Ederoclite; A. J. Cenarro; A. Marín-Franch; S. Chueca; A. Yanes-Díaz; F. Rueda-Teruel; S. Rueda-Teruel; R. Luis-Simoes; A. López-Sainz; J. Hernández Fuertes
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Paper Abstract

J-PAS survey consists of an 8000 square degree photometric sky survey with a set of 54 narrow-band, 2 mediumband and 1 broad-band filters. The main goal is to produce a photo-redshift catalog of 15 millions red, earlytype galaxies with a precision (z) 0:003(1 + z) to measure the Baryonic Acoustic Oscillation (BAO). Such precision requires specific care in the photometric calibration survey. This contribution presents the calibration protocol developed at CEFCA for the J-PAS data and to be applied from its first day. An auxiliary telescope JAST/T80 will perform an initial survey, J-PLUS, available before J-PAS, to create a set of flux calibrated stars in all J-PAS fields. Seven reference stars were already chosen to calibrate in flux the J-PLUS survey. J-PLUS 12-filter system was also specifically optimized to retrieve stellar parameters, T, log(g), [Fe/H], through the fitting of flux calibrated models. J-PLUS will be used as the standard network of flux calibrated stars to create synthetic spectro-photometry for J-PAS 56-filter system and to achieve the 1% photometric precision required for BAO measurements.

Paper Details

Date Published: 13 September 2012
PDF: 8 pages
Proc. SPIE 8448, Observatory Operations: Strategies, Processes, and Systems IV, 84481V (13 September 2012); doi: 10.1117/12.925581
Show Author Affiliations
N. Gruel, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
M. Moles, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
Instituto de Astrofísica de Andalucía, CSIC (Spain)
J. Varela, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
D. Cristóbal-Hornillos, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
A. Ederoclite, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
A. J. Cenarro, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
A. Marín-Franch, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
S. Chueca, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
A. Yanes-Díaz, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
F. Rueda-Teruel, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
S. Rueda-Teruel, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
R. Luis-Simoes, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
A. López-Sainz, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)
J. Hernández Fuertes, Ctr. de Estudios de Física del Cosmos de Aragón (Spain)


Published in SPIE Proceedings Vol. 8448:
Observatory Operations: Strategies, Processes, and Systems IV
Alison B. Peck; Robert L. Seaman; Fernando Comeron, Editor(s)

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