Composite spectra Paper 9: HR 5983

Statistical Analysis of Composite Spectra

We consider nearest–neighbor spacing distributions of composite ensembles of levels. These are formed as a superposition of independently unfolded sequences of levels containing only few levels each. Two problems arise in the spectral analysis of such data. One problem lies in fitting the nearest–neighbor spacing distribution function to the histogram of level spacings obtained from the data. W...

The Chandra Letg and Xmm-newton Spectra of Hr 1099

The X-ray luminous RS CVn binary system HR 1099 has been observed on several occasions in the early phases of Chandra and XMM-Newton. A very hot (up to 40 MK) dominant coronal plasma has been identified from the high-resolution spectroscopic data; cooler plasma is seen down to about 3 MK. We recently obtained 100 ksec in Chandra's Guest Observer Program to study the corona of HR 1099 with the H...

D 9 a Green paper

Pegasus Paper 94 – 9 AudioSourceLocation

Pegasus, ESPRIT BRA 6865, is a project of the University of Cambridge and the University of Twente. The project is aimed at the design of an operating systems architecture for scalable distributed multimedia systems and the development of a validating prototype, design and implementation of a distributed complex-object service and a global name service, mechanisms for the creation, communicatio...

9 Prime Spectra of Quantized Coordinate Rings

This paper is partly a report on current knowledge concerning the structure of (generic) quantized coordinate rings and their prime spectra, and partly propaganda in support of the conjecture that since these algebras share many common properties, there must be a common basis on which to treat them. The first part of the paper is expository. We survey a number of classes of quantized coordinate...