The ALHAMBRA photometric system
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.
Keywords
Cite
@article{arxiv.1001.3383,
title = {The ALHAMBRA photometric system},
author = {T. Aparicio Villegas and E. J. Alfaro and J. Cabrera-Cano and M. Moles and N. Benitez and J. Perea and A. del Olmo and A. Fernandez-Soto and D. Cristobal-Hornillos and C. Husillos and J. A. L. Aguerri and T. Broadhurst and F. J. Castander and J. Cepa and M. Cervino and R. M. Gonzalez Delgado and L. Infante and I. Marquez and J. Masegosa and V. J. Martinez and F. Prada and J. M. Quintana and S. F. Sanchez},
journal= {arXiv preprint arXiv:1001.3383},
year = {2015}
}
Comments
Astronomical Journal on the 14th of January 2010