Titlebook: Evolution of Massive Stars; A Confrontation betw D. Vanbeveren,W. Rensbergen,C. Loore Book 1994 Springer Science+Business Media Dordrecht 1

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Wert und Bewertung von Erfolgsideen,omplementary to the submitted paper. Here, we emphasize the advantages and the weak points of our approach and we present additional technical aspects..The models are characterised by a simultaneous solution of the equation of motion, the non-LTE populations of H and He, and radiation transfer in a

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Erfolge mit SAP Business Workflow?Magellanic Clouds***, three of which are of spectral type O3. The data cover the spectral region from 1150 A–2300 A with a resolution of Δλ/λ ≈ 1 A. One O8.5 supergiant, OB78#231, in M31 .is also included in this work. These data are a substantial improvement on previous high resolution IUE observat

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,Der Reiseflug – Einführung der Agilit?t,The paper gives a summary of the situation mid-1993 of theory and observations regarding massive stars. I describe: stellar mass loss and its implications, pre-main-sequence evolution, the main sequence, problems of atmospheric instability, Luminous Blue Supergiants, Yellow Hyper-giants, Wolf—Rayet stars and supernovae.

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Blue and Red Supergiants and the Age Structure of the NGC 330 RegionWe analysed new UBVRI CCD photometry of the massive, blue SMC cluster NGC 330 and its surrounding field. The age structure and a new reddening value for the stellar population in this region of the SMC are derived and the implications for star formation in this part of the SMC and for stellar evolution are discussed.

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The Massive Star Distribution in the Galaxy and the Magellanic Cloudsthe SMC are 185, 114, and 9, respectively. Distances and galactic distributions determined by various authors are compared. The single star and binary distributions are discussed in the light of evolutionary studies.

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Massive Star Distribution in External Galaxies and Starburst Regionspes of massive stars. There seems to be little, if any, dependence of the slope of the Intial Mass Function, or the . on the initial composition of the stars. Indirect estimates of numbers of massive stars in various more distant environments are reviewed and discussed within a framework of a . of t

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A Dissection of 30 Doradus and a Discussion of Other Magellanic Cloud OB Associationsf 30 Doradus in the Large Magellanic Cloud (LMC). Using photometric data for over 2400 stars (complete to .≈ 18 mag), and spectroscopic observations of over 150 stars in the region, the best estimate of the initial mass function (IMF) yields a slope of Г = ?1.5 ± 0.2 for masses > 12.⊙, where the Sal

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Be Stars in Young Clusters in the Magellanic Cloudsle is known about the Be star content of the Magellanic Clouds (MCs). We present a refined method of Be star identification by CCD photometry and apply it to four young clusters and associations in the MCs. We find NGC 330 in the SMC to be exceptionally rich in Be stars, while the fraction is clearl