[1] A high resolution active source dataset recorded across the Southern Alps of New Zealand displays unusually strong S-wave phases, which show minimal shear wave splitting. A suite of methods was used to analyse the data to minimize the uncertainty in the anisotropy measurements. We use the Silver and Chan [1991] method, cross correlation of stacked data, and deconvolution in combination with...

The propagation of two orthogonally polarized shear waves, or shearwave splitting, is arguably the most robust indication of seismic anisotropy in the Earth. This splitting can be parameterized in terms of the polarization of the fast shear-wave and the lag time between fast and slow components dt. These two parameters provide constraints on the mechanism causing the anisotropy. All methods of ...

In all media in which the elastic stiffness tensor and density vary in space, an implicit, frequency-dependent anisotropy is present, even if the medium is locally isotropic. This predicts a non-linear, frequency-dependent polarization of body waves, and explains shear-wave splitting in heterogeneous media. Examples are presented for compressional and shear waves in a medium in which the elasti...

The goal of this study is to determine whether shear wave splitting observed in subduction zone back arc regions, the Tonga subduction zone in particular, can be quantitatively modeled with flow in the back arc mantle driven by the motions of the subducting slab and the upper back arc plate. We calculated two-dimensional mantle flow models using known Tonga plate motions as boundary conditions ...

2609 where H is the natural entropy function and R = k=n is the rate. Since we are dealing with the asymptotical case, we normalize by setting i = n!, and we define the function f (!; R; q) by A !n = e nf(!; R; q) : From Lemma 2, we get f (!; R; q) = H(!) + ! ln(q 0 1) 0 (1 0 R) ln q: (6) Note that, for a given A i , there are two solutions for i. Setting A i 1, the two solutions will be the mi...

Spectrum of gluons in the adjoint source field is computed analytically using the QCD string Hamiltonian, containing only one parameter – string tension, fixed by meson and glueball spectrum. Spin splitting is shown to be small. A good agreement is observed with spa-cially generated gluelump states measured on the lattice. Important role of gluelumps defining the behaviour of field-strength cor...

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The white dwarf revealed in the intermediate polar V709 Cassiopeiae. Abstract. Results are presented from the first detailed spectroscopic observations of the recently identified intermediate polar RXJ0028.8+5917/V709 Cas. The study of the emission line radial velocities allows us to remove the uncertainties on the different aliases of the orbital period and a best value is found at (0.2225±0.0...