(Proposal ID) S17A-058 (PI) Okabe, Nobuhiro (Proposal Title) Probing the Assembly Histories of BCGs and DM Halos by Exploiting Synergies between the MaNGA Survey and HSC at z~0.1 II (Abstract) We propose to pursue our systematic joint study of the weak lensing analysis of very nearby, thirty-one galaxy clusters and the stellar kinematics of their brightest cluster galaxies (BCGs) for a deeper understanding of the physical interplay between galaxies and dark matter. The dark matter profiles surrounding the BCGs are fundamentally correlated with their growth history. Combining two independent, complementary data sets, namely the exquisite images of HSC, spanning the entire region of host clusters, and the legacy- type spectroscopic data of the SDSS MaNGA survey, we will precisely measure the stellar mass, dark matter and the total mass profiles by breaking the degeneracy between the dark matter mass and the stellar initial mass function. We aim to (1) accurately measure the stellar mass, dark matter, and the total mass profiles, (2) constrain the inner slope of dark matter profiles, (3) compute the baryon fraction, and (4) study merger signatures as a function of halo mass. Our systematic study of HSC WL and MaNGA spectroscopic data on a uniform, complete sample of the clusters enables us to study the correlations between cluster and central galaxy properties and dark matter profiles. This proposal significantly increases the number of targets observed by both MaNGA and HSC.