Asymmetry of metallic spectral lines in Cepheids

Spectral asymmetry and supersymmetry

Fractional charges, and in particular the spectral asymmetry η of certain Dirac operators , can appear in the central charge of supersymmetric field theories. This yields unexpected analyticity constraints on η from which classic results can be recovered in an elegant way. The method could also be applied in the context of string theory.

QUADRATIC STARK CONSTANTS OF NEUTRAL COPPER SPECTRAL LINES IN THE COULOMB APPROXIMATION

Quadratic Stark constants of neutral copper spectral lines for all s,p, and d levels are calculated using the Coulomb approximation. These results are compared with existing data and, generally, good agreement is observed

Spectral asymmetry for manifolds of special holonomy

Monte Carlo simulation of electromigration phenomena in metallic lines

The electromigration (EM) of metallic lines is studied in terms of competition between two percolative processes taking place in a random resistor network. The effects associated with the transport of mass and with the consequent growth of the internal stress are accounted for by stochastic generation and recovery of voids, driven by the external current. Monte Carlo simulations enable us to in...

Asymmetry of jets, lobe length and spectral index in quasars

The less depolarized lobe of a radio source is generally the lobe containing the jet (Laing-Garrington correlation) but the less depolarized lobe is also generally that with the flatter radio spectrum (Liu-Pooley correlation). Both effects are strong; taken together they would imply a correlation between jet side and lobe spectral index, i.e. between an orientation-dependent feature and one whi...