Bibcode
Babbedge, T. S. R.; Rowan-Robinson, M.; Gonzalez-Solares, E.; Polletta, M.; Berta, S.; Pérez-Fournon, I.; Oliver, S.; Salaman, D. M.; Irwin, M.; Weatherley, S. J.
Referencia bibliográfica
Monthly Notices of the Royal Astronomical Society, Volume 353, Issue 2, pp. 654-672.
Advertised on:
9
2004
Número de citas
80
Número de citas referidas
73
Descripción
We present a combined galaxy-quasar approach to template-fitting
photometric redshift techniques and show the method to be a powerful
one.
The code (IMPZ) is presented, developed and applied to two spectroscopic
redshift catalogues, namely the Isaac Newton Telescope Wide-Angle Survey
ELAIS N1 and N2 fields and the Chandra Deep Field North. In particular,
optical size information is used to improve the redshift determination.
The success of the code is shown to be very good, with Δz/(1 +z)
constrained to within 0.1 for 92 per cent of the galaxies in our sample.
The extension of template fitting to quasars is found to be reasonable,
with Δz/(1 +z) constrained to within 0.25 for 68 per cent of the
quasars in our sample. Various template extensions into the
far-ultraviolet are also tested.