Speaker
Description
Over the last fifteen years, surveys of the positions and motions of other galaxies have grown exponentially, transforming our maps of the cosmos. These data reveal the history of expansion and the growth of structure in our Universe, both driven by fundamental particles and fields and their interactions.
In this talk, I will review how spectroscopic galaxy surveys access this information, highlighting key probes such as Baryon Acoustic Oscillations, Redshift-Space Distortions, and galaxy peculiar motions. As a case study, I will present recent results from the Dark Energy Spectroscopic Instrument (DESI), focusing on our constraints on the abundances and properties of neutrinos, dark matter, and dark energy. I will conclude with a look forward to what we can expect in the coming years from upcoming projects like Euclid, 4MOST, and next-generation facilities.