Nucleosynthesis in the Era of Multi-Messenger Astronomy
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 6316
Special Issue Editor
Interests: nuclear astrophysics; astrobiology
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Nuclear astrophysics has seen improvements and advances on at least five major fronts in the past two decades. Perhaps the most prominent advance has been the recent discovery of gravitational wave signals from neutron star mergers, combined with astronomical observations which may provide quantifiable evidence of element formation in these events, thus ushering in a new stage of astronomical observation with multiple modalities.
Closely related to this are improvements in astronomical observations. Improved techniques with more sensitive equipment will allow observational astronomers to gauge elemental abundances at increasingly finer resolutions. Additionally, but not limited to this, there are the advances in gamma ray astronomy, which can provide signatures of radioactive isotopes formed in nucleosynthetic events.
Theory continues to advance, with new capabilities in understanding nuclear and particle properties. New nuclear models are better equipped to predict behaviour in stellar environments. Similarly, theories of neutrino properties, interactions, and (for example) mass hierarchy allow us to predict the behaviour and outcomes of events, as well as to provide possibilities for new observables. Additionally, nuclear equation-of-state models can be constrained by recent observations of neutron star and neutron star merger observations, while also providing predictions of these observations.
New theories are tested with greater precision and speed as computational power and techniques become available. Computational astrophysicists now routinely model explosive events in three dimensions. Astrophysical libraries and routines are also readily available to the community for testing hypotheses and for educational purposes.
Finally, experimental physics can provide significant input to astronomers and astrophysicists with a variety of measurements. In particular, nuclear experimentalists can provide information on fundamental nuclear properties, such as masses, lifetimes, and energy levels, all of which are useful to observational, computational, and theoretical physicists. Nuclear matter experiments continue to push the frontier to constrain the nuclear equation-of-state at increasingly higher densities and asymmetry. Such experiments are improving in capabilities as new facilities come online. Neutrino astrophysics continues to thrive as well, through cosmic and reactor experiment, with multiple devices in existence worldwide.
Prof. Michael Famiano
Guest Editor
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Keywords
- Neutron stars
- Nuclear astrophysics
- Nucleosynthesis
- Nuclear equation-of-state
- Astronomy
- Neutron star mergers
- Supernovae
- R-process
- Computational astrophysics
- Nuclear theory
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