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Showing 1 - 5 of 5 matches in All Departments

The Influence of Binaries on Stellar Population Studies (Hardcover, 2001 ed.): D. Vanbeveren The Influence of Binaries on Stellar Population Studies (Hardcover, 2001 ed.)
D. Vanbeveren
R5,783 Discovery Miles 57 830 Ships in 10 - 15 working days

This book reviews recent observations of non-evolved and evolved binary populations in clusters and the field with special emphasis on statistical biases, incompleteness, and distribution functions. It considers different binary types and presents and discusses recent results in the field.

Evolution of Massive Stars - A Confrontation between Theory and Observation (Paperback, Softcover reprint of the original 1st... Evolution of Massive Stars - A Confrontation between Theory and Observation (Paperback, Softcover reprint of the original 1st ed. 1994)
D. Vanbeveren, W. Van Rensbergen, C. de Loore
R2,856 Discovery Miles 28 560 Ships in 10 - 15 working days

Massive stars occupy an exceptional place in general astrophysics. They trigger many if not all of the important processes in galactic evolution whereas due to their intrinsic brightness, they offer the (only until now) possibility to study the stellar content and stellar behaviour in distant galaxies. The last, say, 25 years, massive stars have been the subject of numerous meetings discussing the influence of massive stars on population synthesis, the number distribution of different types of massive stars, the LBV phenomenon, WR stars, X-ray binaries, stellar winds in massive stars, chemical pecularities in massive stars, supernova explosions of massive stars and the important SN1987A event, the influence of massive stars and chemical evolution of galaxies. It is clear that without a theory of stellar evolution, the study of these topics loses a lot of its significance. Massive star evolution therefore got a chance in these meetings, but rarely as a prime subject. The state of the art, the physical processes and the uncertainties in stellar evolution were barely touched. Even more, the influence of close binaries in all these massive star meetings slowly disappeared the last, say, 13 years without any scientific justification, although a significant fraction of stars occurs in close binaries with periods small enough so that both components will interact during their evolution. Denying the binaries or not discussing their influence on results and conclusions, makes the latter very uncertain or even completely unreliable.

The Influence of Binaries on Stellar Population Studies (Paperback, Softcover reprint of hardcover 1st ed. 2001): D. Vanbeveren The Influence of Binaries on Stellar Population Studies (Paperback, Softcover reprint of hardcover 1st ed. 2001)
D. Vanbeveren
R5,519 Discovery Miles 55 190 Ships in 10 - 15 working days

This book reviews recent observations of non-evolved and evolved binary populations in clusters and the field with special emphasis on statistical biases, incompleteness, and distribution functions. It considers different binary types and presents and discusses recent results in the field.

The Brightest Binaries (Paperback, Softcover reprint of the original 1st ed. 1998): D. Vanbeveren, W. Van Rensbergen, C. de... The Brightest Binaries (Paperback, Softcover reprint of the original 1st ed. 1998)
D. Vanbeveren, W. Van Rensbergen, C. de Loore
R1,487 Discovery Miles 14 870 Ships in 10 - 15 working days

Massive stars are distributed all over the upper part of the Hertzsprung-Russell diagram according to their subsequent phases of stellar evolution from main sequence to supernova. Massive stars may either be single or they may be a component of a close binary. The observed single star/binary frequency is known only in a small part of the Galaxy. Whether this holds for the whole galaxy or for the whole cosmos is questionable and needs many more high quality observations.Massive star evolution depends critically on mass loss by stellar wind and this stellar wind mass loss may change dramatically when stars evolve from one phase to another. We start the book with a critical discussion of observations of the different types of massive stars, observations that are of fundamental importance in relation to stellar evolution, with special emphasis on mass loss by stellar wind. We update our knowledge of the physics that models the structure and evolution of massive single stars and we present new calculations. The conclusions resulting from a comparison between these calculations and observations are then used to study the evolution of massive binaries. This book provides our current knowledge of a great variety of massive binaries, and hence of a great variety of evolutionary phases. A large number of case studies illustrates the existence of these phases. Finally, we present the results of massive star population number synthesis, including the effect of binaries. The results indicate that neglecting them leads to a conclusion which may be far from reality. This book is written for researchers in massive star evolution. We hope that, after reading this book, university-level astrophysicsstudents will become fascinated by the exciting world of the Brightest Binaries'.

Projektkompass Elogistik - Effiziente B2b-Loesungen: Konzeption, Implementierung, Realisierung (German, Paperback, Softcover... Projektkompass Elogistik - Effiziente B2b-Loesungen: Konzeption, Implementierung, Realisierung (German, Paperback, Softcover Reprint of the Original 1st 2002 ed.)
Caroline Prenn, D. Vanbeveren
R2,202 Discovery Miles 22 020 Ships in 10 - 15 working days

Der praxisorientierte Leitfaden dokumentiert die Herausforderungen und Risiken der Geschaftsprozesse anhand realer Fall- und Rechenbeispielen und zeigt verschiedene Gestaltungsmodelle mit erweiterten Vermarktungsmoglichkeiten auf. Der Schwerpunkt des Buches liegt in der Analyse der Spannungsfelder, die sich beim theoretischen und praktischen Aufbau einer B2B-Losung ergeben. Es stellt die optimale Umsetzung der Materialbewirtschaftung (Supply Chain Management) mit Fulfillment und der erforderlichen kontinuierlichen Leistungsmessung und -bewertung heraus."

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