INVESTIGADORES
LARES HARBIN LATORRE marcelo
congresos y reuniones científicas
Título:
Propiedades estadísticas de galaxias en las futuras estructuras más grandes del universo
Autor/es:
LARES, M.; YARYURA, C. YAMILA; GARCÍA LAMBAS, D.
Lugar:
Salta
Reunión:
Congreso; 53a Reunión Anual de la Asociación Argentina de Astronomía; 2010
Institución organizadora:
Instituto de Astronomía Teórica y Experimental (ICATE-CONICET), Universidad Nacional de Salta
Resumen:
Superclusters of galaxies are the largest isolated structures in the
universe. We study statistical properties of clustering of galaxies
within superclus- ters, using a catalogue calibrated to identify future
bound superstructures. We use a volume limited sample (z < 0.1) of
spectroscopic galaxies from SDSS-DR7 to select luminous galaxies as
centers, and fainter galaxies as tracers, to compute the
crosscorrelation function of galaxies. We find that this function
depends on the chosen centers: luminous galaxies in super- clusters show
a higher crosscorrelation with tracers. We define subsamples to
obtain an unbiased estimation of the clustering, independent of luminos-
ity and mass. The influence of large scale environment is seen for
galaxies in SCG only for distances greater than ~ 1Mpc.
