Deconstructing the K-Band Number Counts.

Authors :: Barro, G.
Gallego, J.
Pérez-González, P. G.
Eliche-Moral, M. C.
Balcells, M.
Villar, V.
Cardiel, N.
Cristobal-Hornillos, D.
de Paz, A. Gil
Guzmán, R.
Pelló, R.
Prieto, M.
Zamorano, J.
Source :: Highlights of Spanish Astrophysics V; 2010, p259-259, 1p
Publication Year :: 2010
Abstract: We present a study that links the Number Counts (NCs) to the rest-frame luminosity functions (LFs) at the passbands probed by the observed K-band at different epochs. Making use of a large K-band selected sample in the Groth Field, HDFN and CDFS ( ∼ 0. 27 deg<superscript>2</superscript>), we have derived highly reliable photometric redshift estimates that allow us to estimate LFs in the redshift range (0.25–1.25). We find that the larger flattening in the slope of the K-band NCs is mostly a consequence of a prominent decrease in the characteristic density (ᵠ <superscript>∗ </superscript>) around z ∼ 1, and an almost flat evolution of M<superscript>∗ </superscript>. [ABSTRACT FROM AUTHOR]