Speaker
Carlos Frenk
(Durham University)
Description
The ``Lambda cold dark matter'' (LCDM) cosmological model is one of
the great achievements in Physics of the past thirty
years. Theoretical predictions formulated in the 1980s turned out to
agree remarkably well with measurements, performed decades later, of
the galaxy distribution and the temperature structure of the cosmic
microwave background radiation. Now a number of
observations have suggested possible discrepancies with LCDM both on
large and small scales. I will discuss some of these discrepancies
including with recent data from DESI, the largest galaxy
survey ever undertaken, as well as constraints on the mass of the one
component of dark matter whose identity we know: neutrinos.