Speaker
Giorgio Manzoni
(Hong Kong University of Science and Technology (HKUST) - Institute of Advance Studies (IAS))
Description
We compare the latest JWST deep observations with semi-analytic galaxy formation models. We observe a clear break in the slope of the number counts. This break is more pronounced at longer wavelengths. Since our model is able to reproduce this wavelength-dependent feature very well, we investigate how this could be related to the merging history of galaxies which in turn is sensitive to the nature of dark matter. At the highest redshifts (z>9), we rely on multiply-lensed galaxies, with geometric redshift confirmation, to compare the redshift distribution predicted by our model for particle-like (pCDM) and wave-like CDM ($\psi$CDM).
Author
Giorgio Manzoni
(Hong Kong University of Science and Technology (HKUST) - Institute of Advance Studies (IAS))
