Speaker
Dr
ben hoyle
(University of Barcelona)
Description
We describe recent observations of massive, high redshift clusters of galaxies, and show that they appear to be in tension with best fit WMAP 7 LCDM cosmological parameters. We show that we can alleviate the tension by introducing the non Gaussianity parameter fnl. We discuss other recent work on these massive objects.
Primary author
Dr
ben hoyle
(University of Barcelona)
Co-authors
Dr
Licia Verde
(University of Barcelona)
Dr
Raul Jimenez
(University of Barcelona)
