Speaker
Dr
Huanyuan Shan
(EPFL)
Description
We present the largest weak lensing mass map covering ~3000 square degrees of
the DECaLS DR1 Survey. A good agreement can be found between optical and dark matter maps. Comparing with the mass maps from CFHT Stripe 82 Survey (CS82), the similar high signal-to-noise ratio peaks can be found, which means the systematics of the maps are well controlled. We found ~50,000 WL peaks with SNR higher than 3.0. We also study the cross-correlation between WL peaks and massive clusters and galaxies.
Primary author
Dr
Huanyuan Shan
(EPFL)
