Speaker
Uendert Andrade
(Univsersity of Michigan)
Description
The Dark Energy Spectroscopic Instrument (DESI) is conducting the most precise spectroscopic survey of large-scale structure to date, measuring redshifts for tens of millions of galaxies and quasars. A key scientific objective of DESI is to map the imprint of Baryon Acoustic Oscillations (BAO), providing a robust standard ruler for cosmic expansion. In this talk, I will present the latest BAO measurements from DESI Data Release 2 (DR2), detailing the methods used to extract and validate the signal across multiple tracers. I will also highlight the resulting cosmological constraints, with a particular focus on potential challenges to the standard ΛCDM model.
