ar X iv : a st ro - p h / 99 09 02 8 v 1 1 S ep 1 99 9 Accepted by the P . A . S . P .

ar X iv : a st ro - p h / 99 02 29 8 v 2 1 3 A pr 1 99 9 New limits on Ω Λ and Ω M from old galaxies at high redshift

ar X iv : a st ro - p h / 98 07 09 0 v 1 9 J ul 1 99 8 1 MACROSCOPIC PROCESSES IN THE SOLAR INTERIOR

With the

ar X iv : a st ro - p h / 99 09 00 9 v 1 1 S ep 1 99 9 Any Recent Progress in the Theory of Pulsating Stars ? Alfred

To answer the topical question we survey synoptically the recent literature in pulsation theory. We restrict the topics to those which are not dealt with otherwise in this volume. We address research on roAp stars, EC 14026 variables, strange modes, luminous blue variables, pulsation-rotation coupling, and pulsations in compact objects seen from the classical, as well as the relativistic, viewp...

ar X iv : a st ro - p h / 99 09 02 2 v 1 1 S ep 1 99 9 Coherent Transport of Angular Momentum

The mechanism for efficient and coherent angular momentum transport remains one of the unsolved puzzles in astrophysics despite the enormous efforts that have been made. We suggest that important new insight could be gained in this problem through an experimental and theoretical study of a laboratory device (Ranque-Hilsch tube) that displays a similar enhanced angular momentum transfer which ca...

ar X iv : a st ro - p h / 99 09 05 7 v 1 2 S ep 1 99 9 Using Perturbative Least Action to Run N Body Simulations Back in Time

In this report, we present a new method for reconstructing N body initial conditions from a proscribed final density field. This method, Perturbative Least Action (PLA) is similar to traditional least action approaches, except that orbits of particles are found as expansions around previously determined and physically motivated orbits.