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Collapsars as a major source of r-process elements
Daniel M. Siegel, Jennifer Barnes, Brian D. Metzger
The production of elements by rapid neutron capture (r-process) in neutron-star mergers is expected theoretically and is supported by multimessenger observations of gravitational-w…
FRIB and the GW170817 Kilonova
A. Aprahamian, R. Surman, A. Frebel +45
In July 2018 an FRIB Theory Alliance program was held on the implications of GW170817 and its associated kilonova for r-process nucleosynthesis. Topics of discussion included the a…
Fingerprints of heavy element nucleosynthesis in the late-time lightcurves of kilonovae
Meng-Ru Wu, Jennifer Barnes, Gabriel Martinez-Pinedo +1
The kilonova emission observed following the binary neutron star merger event GW170817 provided the first direct evidence for the synthesis of heavy nuclei through the r-process. T…
Radioactive Heating and Late Time Kilonova Light Curves
Daniel Kasen, Jennifer Barnes
Compact object mergers can produce a thermal electromagnetic counterpart (a "kilonova") powered by the decay of freshly synthesized radioactive isotopes. The luminosity of kilonova…