2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/118470We cross-correlate the third-year WMAP data with galaxy samples extracted from the SDSS DR5 (SDSS5) covering 16% of the sky. These measurements confirm a positive cross-correlation, which is well fitted by the integrated Sachs-Wolfe (ISW) effect for flat LCDM models with a cosmological constant.Proceeding for the Cosmic Frontiers 06 conference in DurhamAstrophysicstext