http://arxiv.org/abs/2210.04812
Several bright and massive galaxy candidates at high redshifts have been recently observed by the James Webb Space Telescope. Such early massive galaxies seem difficult to reconcile with standard $\Lambda$ Cold Dark Matter model predictions. We discuss under which circumstances such observed massive galaxy candidates can be explained by introducing primordial non-Gaussianity in the initial conditions of the cosmological perturbations.
M. Biagetti, G. Franciolini and A. Riotto
Tue, 11 Oct 22
69/92
Comments: 10 pages, 4 figures