N = 82 shell quenching below 13250 Sn 50

The influence of nuclar structure on the r-process nucleosynthesis can best be studied within the ”waiting-point” concept [1]. Within this framework, the successful reproduction of the global isotopic abundances (Nr, ) as well as remaining deficiencies have been interpreted by our group as signatures of nuclear structure near the neutron dripline [1]. Pronounced abundance troughs prior to the Nr, peaks at A 130 and 195, respectively, have their origin in an overestimation of the N=82 and 126 shell strength in global mass models such as FRDM and ETFSI-1.