Deconstructing the K-Band Number Counts

Barro, G.; Gallego, J.; Pérez-González, P. G.; Eliche-Moral, M. C.; Balcells, M.; Villar, V.; Cardiel, N.; Cristobal-Hornillos, D.; Gil de Paz, A.; Guzmán, R.; Pelló, R.; Prieto, M.; Zamorano, J.
Referencia bibliográfica

Highlights of Spanish Astrophysics V, Astrophysics and Space Science Proceedings. ISBN 978-3-642-11249-2. Springer-Verlag Berlin Heidelberg, 2010, p. 259

Fecha de publicación:
2010
Número de autores
13
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
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 deg2), 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 ∗) around z ˜ 1, and an almost flat evolution of M ∗.