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Techniques for the calculation of atomic structures and radiative data including relativistic corrections
Abstract The theory incorparated in a general-purpose automatic atomic-structure program is formulated in detail. The computer program, which is called SUPERSTRUCTURE, will be published soon.… Expand
Discovering the Expanding Universe
Acknowledgments Foreword 1. Introduction 2. Cosmological concepts at the end of the Middle Ages 3. Nebulae as a new astronomical phenomenon 4. On the construction of the Heavens 5. Island universes… Expand
Einstein’s conversion from his static to an expanding universe
- H. Nussbaumer
- 4 February 2014
Abstract In 1917 Einstein initiated modern cosmology by postulating, based on general relativity, a homogenous, static, spatially curved universe. To counteract gravitational contraction he… Expand
High resolution spectroscopy of symbiotic stars. VI. Orbital and stellar parameters for AR Pavonis
We present new dynamical parameters of the AR Pav binary system. Our observations consist of a series of high resolution optical/NIR spectra from which we derive the radial velocity curve of the red… Expand
A programme for calculating atomic structures
A method for calculating atomic structures, suitable for the electronic computer, is outlined; the method allows for configuration interaction in a very general way. It is based on the expansion of… Expand
On the extreme ultraviolet solar emission of B-like ions: O IV.
Interacting Binaries: Saas-Fee Advanced Course 22. Lecture Notes 1992. Swiss Society for Astrophysics and Astronomy
Observations and Physical Processes in Binary Stars.- Topics in the Theory of Cataclysmic Variables and X-Ray Binaries.- Interacting Binaries: Topics In Close Binary Evolution.