Heavy element synthesis through disk winds in a collapsar

We investigate heavy element synthesis through thermally driven winds launched from an inner neutron-rich region of an accretion disk in a collapsar. Various heavy elements are found to be produced through the wind. There exist three types of winds characterized by their abundant nuclei: (i) 56Ni, (ii) light (Z=30−45) neutron-rich nuclei, and (iii) light (Z⩽44) p-nuclei. We find that Ye,NSE>0.49, Ye,NSE⩽0.45, and 0.45