Calibration plan for J-PAS and J-PLUS surveys

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

doi:10.1117/12.925581

13 September 2012 Calibration plan for J-PAS and J-PLUS surveys

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

Author Affiliations +

Proceedings Volume 8448, Observatory Operations: Strategies, Processes, and Systems IV; 84481V (2012) https://doi.org/10.1117/12.925581
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

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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, and J. Hernández Fuertes "Calibration plan for J-PAS and J-PLUS surveys", Proc. SPIE 8448, Observatory Operations: Strategies, Processes, and Systems IV, 84481V (13 September 2012); https://doi.org/10.1117/12.925581

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