Results 71 to 80 of about 18,556 (174)

Properties of Microlensing Central Perturbations by Planets in Binary Stellar Systems under the Strong Finite-Source Effect

, 2010
We investigate high-magnification events caused by planets in wide binary stellar systems under the strong finite-source effect, where the planet orbits one of the companions.
Albrow, Bennett, Byeong-Gon Park, Chung, Dong, Dong, Griest, Han, Han, Han, Janczak, Lee, Sun-Ju Chung, Udalski   +13 more
core   +1 more source

Uncertainties of Modeling Gamma-Ray Pulsar Light Curves with Vacuum Dipole Magnetic Field

, 2010
Current models of pulsar gamma-ray emission use the magnetic field of a rotating dipole in vacuum as a first approximation to the shape of plasma-filled pulsar magnetosphere.
Abdo, Anatoly Spitkovsky, Bai, Bai, Cheng, Contopoulos, Deutsch, Dyks, Dyks, Dyks, Hirotani, Jackson, Muslimov, Muslimov, Spitkovsky, Spitkovsky, Takata, Takata, Thompson, Venter, Watters, Xue-Ning Bai, Yadigaroglu   +22 more
core   +1 more source

A Characteristic Planetary Feature in Double-Peaked, High-Magnification Microlensing Events

, 2008
A significant fraction of microlensing planets have been discovered in high-magnification events, and a significant fraction of these events exhibit a double-peak structure at their peak.
B. Scott Gaudi, Bozza V., Chang K., Cheongho Han, Dominik M., Witt H. J.   +5 more
core   +1 more source

Ray and caustic structure of Ince-Gauss beams

New Journal of Physics
The Ince-Gauss beams, separable in elliptic coordinates, are studied through a ray-optical approach. Their ray structure can be represented over a Poincaré sphere by generalized Viviani curves (intersections of a cylinder and a sphere).
R Gutiérrez-Cuevas, M R Dennis, M A Alonso   +2 more
doaj   +1 more source

Propagation of charged particle waves in a uniform magnetic field

, 2012
This paper considers the probability density and current distributions generated by a point-like, isotropic source of monoenergetic charges embedded into a uniform magnetic field environment.
Arnulfo Gonzalez, Christian Bracher, D. J. Griffiths, E. N. Economou, F. I. Dalidchik, F. I. Dalidchik, F. W. J. Olver, I. I. Fabrikant, I. I. Fabrikant, J. F. Nye, L. S. Schulman, M. C. Gutzwiller, M. V. Berry, P. A. Golovinskii, R. Thom, T. Kramer, T. M. Apostol, T. Poston, V. P. Maslov, V. Z. Slonim, V. Z. Slonim, Y. N. Demkov, Y. N. Demkov   +22 more
core   +1 more source

Smooth elastic contact of cylinders by caustics: the contact length in the Brazilian disc test

Archives of Mechanics, 2013
The smooth contact of two elastic cylinders compressed against each other along a common generatrix is studied analytically and experimentally. The main objective is the quantification of the length of the contact arc. For the analytic study, the complex
S.K. Kourkoulis, CH.F. Markides, G. Bakalis   +2 more
doaj   +1 more source

Geometric phase at graphene edge

, 2014
We study the scattering phase shift of Dirac fermions at graphene edge. We find that when a plane wave of a Dirac fermion is reflected at an edge of graphene, its reflection phase is shifted by the geometric phase resulting from the change of the ...
Choi, Sang-Jun, Park, Sunghun, Sim, H. -S.   +2 more
core   +1 more source

Caustic-based approach to understanding bunching dynamics and current spike formation in particle bunches

Physical Review Accelerators and Beams, 2016
Current modulations, current spikes, and current horns, are observed in a range of accelerator physics applications including strong bunch compression in Free Electron Lasers and linear colliders, trains of microbunching for terahertz radiation ...
T. K. Charles, D. M. Paganin, R. T. Dowd   +2 more
doaj   +1 more source

Restoring geometrical optics near caustics using sequenced metaplectic transforms

New Journal of Physics, 2020
Geometrical optics (GO) is often used to model wave propagation in weakly inhomogeneous media and quantum-particle motion in the semiclassical limit. However, GO predicts spurious singularities of the wavefield near reflection points and, more generally,
N A Lopez, I Y Dodin
doaj   +1 more source

Non-smooth convex caustics for Birkhoff billiard

, 2017
This paper is devoted to the examination of the properties of the string construction for the Birkhoff billiard. Based on purely geometric considerations, string construction is suited to provide a table for the Birkhoff billiard, having the prescribed ...
Arnold, Maxim, Bialy, Misha
core   +1 more source