Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 449, Issue 1, Pages L110-L112Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnrasl/slv027
Keywords
asteroseismology; stars: magnetars; stars: neutron; stars: oscillations; white dwarfs; X-rays: bursts
Categories
Funding
- ERC [307986 STRONGINT]
- Helmholtz Alliance Programme of the Helmholtz Association [HA216/EMMI]
- NewCompStar, COST Action [MP1304]
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Elastic properties of the solid regions of neutron star crusts and white dwarfs play an important role in theories of stellar oscillations. Matter in compact stars is presumably polycrystalline and, since the elastic properties of single crystals of such matter are very anisotropic, it is necessary to relate elastic properties of the polycrystal to those of a single crystal. We calculate the effective shear modulus of polycrystalline matter with randomly oriented crystallites using a self-consistent theory that has been very successful in applications to terrestrial materials and show that previous calculations overestimate the shear modulus by approximately 28 per cent.
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