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Elastic properties of polycrystalline dense matter
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. University of Copenhagen, Denmark.
2015 (English)In: Monthly Notices of the Royal Astronomical Society: Letters, ISSN 1745-3925, 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
URN: urn:nbn:se:kth:diva-167012DOI: 10.1093/mnrasl/slv027ISI: 000353555000024ScopusID: 2-s2.0-84926431981OAI: diva2:813468
EU, European Research Council, 307986 STRONGINT

QC 20150522

Available from: 2015-05-22 Created: 2015-05-21 Last updated: 2015-08-05Bibliographically approved

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Pethick, Christopher J.
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