Maximum elastic deformations of compact stars with exotic equations of state

Simple item page
dc.creatorOwen, Benjamin J.
dc.date2005-03-17
dc.date2005-11-15
dc.date.accessioned2026-07-07T06:37:08Z
dc.date.available2026-07-07T06:37:08Z
dc.descriptionI make the first estimates of maximum elastic quadrupole deformations sustainable by alternatives to conventional neutron stars. Solid strange quark stars might sustain maximum ellipticities (dimensionless quadrupoles) up to a few times $10^{-4}$ rather than a few times $10^{-7}$ for conventional neutron stars, and hybrid quark-baryon or meson-condensate stars might sustain up to $10^{-5}$. Most of the difference is due to the shear modulus, which can be up to $10^{33}$ erg/cm$^3$ rather than $10^{30}$ erg/cm$^3$ in the inner crust of a conventional neutron star. Maximum solid strange star ellipticities are comparable to upper limits obtained for several known pulsars in a recent gravitational-wave search by LIGO. Maximum ellipticities of the more robust hybrid model will be detectable by LIGO at initial design sensitivity. A large shear modulus also strengthens the case for starquakes as an explanation for frequent pulsar glitches.
dc.description4 pages, no figures; Introduction reworked, SGR1806-20 mentioned in Implications, minor changes elsewhere; final version as appearing in PRL
dc.identifierhttps://arxiv.org/abs/astro-ph/0503399
dc.identifierhttp://arxiv.org/abs/astro-ph/0503399
dc.identifierPhys.Rev.Lett. 95 (2005) 211101
dc.identifierdoi:10.1103/PhysRevLett.95.211101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100290
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleMaximum elastic deformations of compact stars with exotic equations of state
dc.typetext

Files

Collections

arXiv