February 11, 14:15 in A315   

Shaun Hotchkiss (University of Helsinki)


Primordial non-Gaussianity and Galaxy Clusters

The existence of a number of recently discovered very massive and high redshift galaxy clusters appears to provide tension with the standard cosmological model. It is known that primordial non-Gaussianity would affect the expected number density of clusters at these masses and redshifts. Attempts to constrain non-Gaussianity using these clusters has, however, lead to conflicting results. I will try to make sense of all of the above.