Speaker
Dr.
Martín Rodríguez Monroy
(CSFK Konkoly Observatory)
Description
We present the Dark Energy Survey Year 6 3x2pt analysis, which combines cosmic shear, galaxy clustering, and galaxy-galaxy lensing measurements across ~4000 deg². Using an unprecedented sample of lens and source galaxies, this study delivers some of the most precise constraints to date on key cosmological parameters, including the matter density Ωₘ and the amplitude of cosmic structure σ₈. Our findings reveal a mild but intriguing tension with Planck CMB predictions under the standard ΛCDM mode. This analysis demonstrates the power of joint probes in testing dark energy and sets a benchmark for upcoming surveys like LSST and Euclid.
Primary author
Dr.
Martín Rodríguez Monroy
(CSFK Konkoly Observatory)
