Superestructuras en el universo: caracterización e identificación en el catálgo SDSS-DR7

LUPARELLO, H.E.; LARES, MARCELO; GARCÍA LAMBAS, DIEGO; PADILLA, NELSON D

San Juan

Workshop; 54ª Reunión Anual de la Asociación Argentina de Astronomía; 2011

Superclusters are the largest gravitationally bound systems in the Universe. These structures are not presently virialized, so the application of theoreti- cal arguments in their identification is not straightforward. Luparello et al., (2011) present an identification method and establish the values of the pa- rameters in order to ensure that superstructures in the present Universe will evolve into virialized structures. In this work we define and characterize the largest structures in the Universe, in the framework of the cosmological model CDM. We briefly describe the Future Virialized Structures (FVS) identification method applied to the seventh data release of the Sloan Dig- ital Sky Survey (SDSS-DR7, Abazajian et al., 2009) in the redshift range 0.04 < z < 0.12 and present the main properties of the FVS catalogue.FULL TEXT IN SPANISH