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Open Access item The Alhambra photometric system

Authors:Aparicio Villegas, Teresa
Alfaro, Emilio J.
Cabrera-Caño, Jesús
Molés, 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, I.
Masegosa, J.
Prada, F.
Quintana, José María
Keywords:Instrumentation: photometers, Techniques: photometric, Standards, Cosmology: observations, Galaxies: distances and redshifts, Stars: fundamental parameters
Issue Date:11-Feb-2010
Publisher:Institute of Physics Publishing
Citation:Astronomical Journal 139(3): 1242-1253 (2010)
Abstract:This 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.
Description:12 páginas, 8 figuras, 13 tablas.-- El Pdf del artículo es la versión pre-print: arXiv:1001.3383v1.-- et al.
Publisher version (URL):http://dx.doi.org/10.1088/0004-6256/139/3/1242
URI:http://hdl.handle.net/10261/37967
ISSN:0004-6256
E-ISSNmetadata.dc.identifier.doi = DOI:1538-3881
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