106 citations · 387 across the 20 of their papers we have counts for
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Astromers: Status and Prospects
G. Wendell Misch, Matthew R. Mumpower
The extreme temperatures and densities of many astrophysical environments tends to destabilize nuclear isomers by inducing transitions to higher energy states. Those states may the…
Sensitivity of Neutron-Rich Nuclear Isomer Behavior to Uncertainties in Direct Transitions
G. Wendell Misch, Trevor M. Sprouse, Matthew R. Mumpower +4
Nuclear isomers are populated in the rapid neutron capture process (r process) of nucleosynthesis. The r process may cover a wide range of temperatures, potentially starting from s…
Isochronic evolution and the radioactive decay of r-process nuclei
T. M. Sprouse, G. Wendell Misch, M. R. Mumpower
We report on the creation and application of a novel decay network that uses the latest data from experiment and evaluation. We use the network to simulate the late-time phase of t…
Astromers in the radioactive decay of r-process nuclei
G. Wendell Misch, T. M. Sprouse, M. R. Mumpower
We study the impact of astrophysically relevant nuclear isomers (astromers) in the context of the rapid neutron capture process (r-process) nucleosynthesis. We compute thermally me…
Axisymmetric Radiative Transfer Models of Kilonovae
Oleg Korobkin, Ryan Wollaeger, Christopher Fryer +9
The detailed observations of GW170817 proved for the first time directly that neutron star mergers are a major production site of heavy elements. The observations could be fit by a…
Gamma-rays from kilonova: a potential probe of r-process nucleosynthesis
Oleg Korobkin, Aimee M. Hungerford, Christopher L. Fryer +11
The mergers of compact binaries with at least one neutron star component are the potential leading sites of the production and ejection of -process elements. Discoveries of gala…
Composition Effects on Kilonova Spectra and Light Curves: I
Wesley Even, Oleg Korobkin, Christopher L. Fryer +7
The merger of neutron star binaries is believed to eject a wide range of heavy elements into the universe. By observing the emission from this ejecta, scientists can probe the ejec…
Using Steady State Behavior to Assess Treatments of Nuclear Isomers in Astrophysical Environments
G. Wendell Misch, Surja K. Ghorui, Yang Sun
Differing reaction rates of long-lived nuclear states can force the level occupations out of thermal equilibrium, causing calculations of overall rates which rely on thermal equili…
Effective Stellar -Decay Rates of Nuclei with Long-lived Isomers: Al and Cl
Projjwal Banerjee, G. Wendell Misch, Surja K. Ghorui +1
Isotopes with low-lying long-lived isomers can behave very differently from other isotopes in astrophysical environments. In particular, the assumption of thermal equilibrium in co…
Neutrino Spectra from Nuclear Weak Interactions in -Shell Nuclei Under Astrophysical Conditions
G. Wendell Misch, Yang Sun, George M. Fuller
We present shell model calculations of nuclear neutrino energy spectra for 70 -shell nuclei over the mass number range . Our calculations include nuclear excited state…
Nuclear neutrino energy spectra in high temperature astrophysical environments
G. Wendell Misch, George M. Fuller
Astrophysical environments that reach temperatures greater than 100 keV can have significant neutrino energy loss via both plasma processes and nuclear weak interactions. We…
Modification of the Brink-Axel Hypothesis for High Temperature Nuclear Weak Interactions
G. Wendell Misch, George M. Fuller, B. Alex Brown
We present shell model calculations of electron capture strength distributions in A=28 nuclei and computations of the corresponding capture rates in supernova core conditions. We f…
Neutrino Pair Emission from Hot Nuclei During Stellar Collapse
G. Wendell Misch, B. Alex Brown, George M. Fuller
We present shell-model calculations showing that residual interaction-induced configuration mixing enhances the rate of neutral current de-excitation of thermally excited nuclei in…