INVESTIGADORES
LARES HARBIN LATORRE Marcelo
artículos
Título:
The faint-end of the galaxy luminosity function in groups
Autor/es:
GONZALEZ, ROBERTO; LARES, MARCELO; GARCIA LAMBAS, DIEGO RODOLFO; VALOTTO, CARLOS
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
EDP SCIENCES S A
Referencias:
Lugar: Les Ulis Cedex; Año: 2006 vol. 445 p. 51 - 58
ISSN:
0004-6361
Resumen:
We compute the galaxy luminosity function in spectroscopically selected nearby groups and clusters. Our sample comprises 728 systems extracted from the third release of the Sloan Digital Sky Survey in the redshift range 0.03 < z < 0.06 with virial mass range 1011~M_0 < M_vir < 2 1014~M_0. To compute the galaxy luminosity function, we apply a statistical background subtraction method following usually adopted techniques. In the r band, the composite galaxy luminosity function shows a slope α=-1.3 in the bright-end, and an upturn of the slope in the faint-end, M_r⪆ -18+5log~(h), to slopes -1.9
