One-center close-coupling approach to two-center rearrangement collisions

Convergent Close-coupling Approach to Electron-atom Collisions

It was with great pleasure and honour to accept the invitation to make a presentation a t the symposium celebrating the life-long work of Aaron Temkin and Richard Drachman. The work of Aaron Temkin was particularly influential on our own during the development of the CCC method for electron-atom collisions. There are a number of key problems that need to be dealt with when developing a general ...

A novel approach to the two–center Dirac problem∗

A. N. Artemyev† 1,2, A. Surzhykov1,2, P. Indelicato3, G. Plunien4, and Th. Stöhlker1,2,5 1University of Heidelberg, Germany; 2GSI, Darmstadt, Germany; 3École Normale Supérieure, Paris, France; 4TU Dresden, Germany; 5Helmholtz-Institut Jena, Germany With the recent experimental advances in accelerator and storage ring techniques, novel opportunities arise to study slow collisions between heavy, ...

Monitoring lensed starlight emitted close to the Galactic center

We describe the feasibility of detecting the gravitational deflection of light emitted by stars moving under the influence of the massive object at the Galactic center. Light emitted by a star orbiting behind the central mass has a smaller impact parameter than the star itself, and suffers the effect of gravitational lensing, providing a closer probe of the central mass distribution and hence a...

Transition from Detached Plazas Close to Traditional Bazaars towards Reviving Lost Spaces Close to Contemporary Shopping Centres, Case Studies: Proma Shopping Center and Bazaar-E Reza in Mashhad

Off-Center Collisions between Clusters of Galaxies

We present numerical simulations of off-center collisions between galaxy clusters made using a new hydrodynamical code based on the piecewise-parabolic method (PPM) and an isolated multigrid potential solver. The current simulations follow only the intracluster gas. We have performed three high-resolution (256× 128) simulations of collisions between equal-mass clusters using a nonuniform grid w...