Elasticity of Nuclear Pasta
| Autor: | M. E. Caplan, A. S. Schneider, Charles Horowitz |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Gravitational wave Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory General Physics and Astronomy Observable Mechanics 01 natural sciences Nuclear pasta Nonlinear Sciences::Chaotic Dynamics Shear modulus Molecular dynamics Neutron star 0103 physical sciences Elasticity (economics) Nuclear Experiment 010306 general physics Nonlinear Sciences::Pattern Formation and Solitons 010303 astronomy & astrophysics Nuclear theory |
| Zdroj: | Physical Review Letters. 121 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.121.132701 |
| Popis: | The elastic properties of neutron star crusts are relevant for a variety of currently observable or near-future electromagnetic and gravitational wave phenomena. These phenomena may depend on the elastic properties of nuclear pasta found in the inner crust. We present large-scale classical molecular dynamics simulations where we deform nuclear pasta. We simulate idealized samples of nuclear pasta and describe their breaking mechanism. We also deform nuclear pasta that is arranged into many domains, similar to what is known for the ions in neutron star crusts. Our results show that nuclear pasta may be the strongest known material, perhaps with a shear modulus of 10^{30} ergs/cm^{3} and a breaking strain greater than 0.1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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