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Elastic properties of polycrystalline dense matter
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). University of Copenhagen, Denmark.
2015 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 449, no 1, l110-L112 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2015. Vol. 449, no 1, l110-L112 p.
Keyword [en]
asteroseismology, stars: magnetars, stars: neutron, stars: oscillations, white dwarfs, X-rays: bursts
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-117436DOI: 10.1093/mnrasl/slv027ISI: 000353555000024OAI: oai:DiVA.org:su-117436DiVA: diva2:813278
Note

AuthorCount:2;

Available from: 2015-05-22 Created: 2015-05-19 Last updated: 2015-05-22Bibliographically approved

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Nordic Institute for Theoretical Physics (Nordita)
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Astronomy, Astrophysics and Cosmology

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