Changes in r-process abundances at late times

We explore changes in abundance patterns that occur late in the r process. As the neutrons available for capture begin to disappear, a quasiequilibrium funnel shifts material into the large peaks at A=130 and A=195, and into the rare-earth ''bump'' at A=160. A bit later, after the free-neutron abundance has dropped and beta decay has begun to compete seriously with neutron capture, the peaks can widen. The degree of widening depends largely on neutron-capture rates in a few nuclei near closed neutron shells and relatively close to stability. We identify particular nuclei whose capture rates should be examined experimentally, perhaps at a radioactive beam facility