Interatomic Potential Structures in Highly Ionized Scattering Systems

Interatomic Potential Structures in Highly lonized Scattering Systems

Interatomic Potential Models for Nanostructures

Over the last decade, nanoscience and nanotechnology [1–4] have emerged as two of the pillars of the research that will lead us to the next industrial revolution [5] and, together with molecular biology and information technology, will map the course of scientific and technological developments in the 21st century. This progress has been largely due to the development of sophisticated theoretic...

A Be-W interatomic potential.

In this work, an interatomic potential for the beryllium-tungsten system is derived. It is the final piece of a potential puzzle, now containing all possible interactions between the fusion reactor materials beryllium, tungsten and carbon as well as the plasma hydrogen isotopes. The potential is suitable for plasma-wall interaction simulations and can describe the intermetallic Be(2)W and Be(12...

Highly Ionized High Velocity Clouds

We have recently used the Hubble Space Telescope to study a pair of high velocity clouds in the direction of Mrk 509 that have unusual ionization properties. They exhibit strong C iv absorption with little or no low ion absorption or H i 21 cm emission. As the closest known analog to the outer diffuse halos of damped Lyα absorbers and the low N(H i) metal line absorption systems seen in the spe...

In Highly Ionized High-velocity Clouds

We present a Far-Ultraviolet Spectroscopic Explorer survey of highly ionized high-velocity clouds (HVCs) in 66 extragalactic sight lines with S/N1030 >8. We searched the spectra for high-velocity (100 < |vLSR| < 400km s ) O VI absorption and found a total of 63 absorbers, 16 with 21 cmemitting H I counterparts and 47 “highly ionized” absorbers without 21 cm emission. The highly ionized HVC popu...