Propagation of Moreton Waves

Evidence of Eit and Moreton Waves in Numerical Simulations

Solar coronal mass ejections (CMEs) are associated with many dynamical phenomena, among which EIT waves have always been a puzzle. In this Letter MHD processes of CME-induced wave phenomena are numerically simulated. It is shown that as the flux rope rises, a piston-driven shock is formed along the envelope of the expanding CME, which sweeps the solar surface as it propagates. We propose that t...

Propagation of tectonic waves

Neutrino Propagation Through Helioseismic Waves

Motivated by earlier calculations showing large effects when neutrinos propagate through fluctuating media, we perform here a detailed analysis of how density fluctuations in the sun in the form of helioseismic waves can modify the MSW solution to the solar neutrino problem. We find negligible effects for the MSW spectrum, even under extreme circumstances. There are two main reasons why our con...

Effect of Initial Stress on Propagation of Love Waves in an Anisotropic Porous Layer

In the present paper, effect of initial stresses on the propagation of Love waves has been investigated in a fluid saturated, anisotropic, porous layer lying in welded contact over a prestressed, non-homogeneous elastic half space. The dispersion equation of phase velocity has been derived. It has been found that the phase velocity of Love waves is considerably influenced by porosity and anisot...

Propagation of traveling waves in excitable media.

Traveling waves transmit information through space. Wave patterns arise in phenomena as diverse as the migrating action potentials of neurons (Hodgkin and Huxley 1952), spiraling bands of electrical excitation detected in cardiac muscle (Davidenko et al. 1992), and the movement of calcium within differentiating Xenopus laevis oocytes (Lechleiter et al. 1991). In each of these cases, an excitabl...