Large Scale Structure and Cosmology in SDSS and DES – Marcos Lima (USP)

The large-scale clustering properties of galaxies allow us to investigate models which attempt to explain the recent acceleration of the Universe background expansion. These properties include the correlations of galaxy positions and lensing shear, as well as the statistical properties of galaxy clusters and cosmic voids. We will discuss the use of galaxy correlations and spectra for detecting the Baryon Acoustic Oscillations (BAO) scale and for constraining cosmological parameters. We will also discuss the challenges of using galaxy clusters and cosmic voids to constrain cosmology. Throughout the discussion, we will present some of our results for these studies on mock simulations, as well as on recent data from the Sloan Digital Sky Survey (SDSS) and the Dark Energy Survey (DES).