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The Alhambra photometric system

AuthorsAparicio Villegas, Teresa ; Alfaro, Emilio J. ; Cabrera-Caño, Jesús; Moles, Mariano ; Benítez, Narciso ; Perea, Jaime ; Olmo, Ascensión del ; Fernández-Soto, Alberto ; Cristóbal-Hornillos, David ; Husillos, César ; Castander, Francisco J. ; Cerviño, Miguel ; González Delgado, Rosa M. ; Márquez, Isabel ; Masegosa, Josefa ; Prada, Francisco ; Quintana, José María ; Sánchez, Sebastián F.
KeywordsInstrumentation: photometers
Techniques: photometric
Cosmology: observations
Galaxies: distances and redshifts
Stars: fundamental parameters
Issue Date11-Feb-2010
PublisherInstitute of Physics Publishing
CitationAstronomical Journal 139(3): 1242-1253 (2010)
AbstractThis paper presents the characterization of the optical range of the ALHAMBRA photometric system, a 20 contiguous, equal-width, medium-band CCD system with wavelength coverage from 3500A to 9700A. The photometric description of the system is done by presenting the full response curve as a product of the filters, CCD and atmospheric transmission curves, and using some first and second order moments of this response function. We also introduce the set of standard stars that defines the system, formed by 31 classic spectrophotometric standard stars which have been used in the calibration of other known photometric systems, and 288 stars, flux calibrated homogeneously, from the Next Generation Spectral Library (NGSL). Based on the NGSL, we determine the transformation equations between Sloan Digital Sky Survey (SDSS) ugriz photometry and the ALHAMBRA photometric system, in order to establish some relations between both systems. Finally we develop and discuss a strategy to calculate the photometric zero points of the different pointings in the ALHAMBRA project.
DescriptionAparicio Villegas, Teresa et al.
Publisher version (URL)http://dx.doi.org/10.1088/0004-6256/139/3/1242
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(IAA) Artículos
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