Titlebook: Birth and Evolution of Massive Stars and Stellar Groups; Proceedings of a Sym Wilfried Boland,Hugo Woerden Conference proceedings 1985 D. R

RADE

Stellar Associations and the Regions of Active Star Formation in themThe recognition of stellar associations as regions of star formation, i.e. regions containing groups of recently formed stars (Ambartsumian 1947), had an important significance for our understanding of the origin and evolution of stars.

oblique

fallible

杂役

https://doi.org/10.1007/978-3-663-15891-2the local galactic neighborhood, which is here defined to encompass a region centered on the Sun and extending to a distance of approximately 500 parsecs..The major features in the distribution of the ISM in the northern local galactic neighborhood are two ‘holes’ (regions of low gas density). One o

BAIL

epicondylitis

Vereinigung, Zersetzung, Umsetzung,in order to reproduce the local mass function it is necessary to postulate also that low-mass stars can be produced without OB stars in the conventional proportions. A few extraordinarily dense clusters of young stars in molecular clouds are known, especially that around the Orion Trapezium, but it

Acclaim

Abbau des Wassers. Der Wasserstoff,triplet behaviour. The stars we have observed fall into three groups according to the values of the equivalent widths of the Ca IIλ 8498 line. Our results are in good agreement with recently proposed chromospheric models.

郊外

大漩涡

Die Lehre von den Atomen und Molekeln, HD 97048 and HD 97300 in the Cha I association. The MK spectral classification and apparent visual magnitude for these stars are: B9.5 Ve and V = 8.4; B9V and V = 9.0, respectively. Both objects are presumably ZAMS stars; although HD 97300 has no emission features, it does have many of the properti

增长

,Das Gesetz der festen Gewichtsverhältnisse,ith evolutionary models, the observations suggest a galactic gradient in the initial mass function of these stars. Differences in the massive stellar population between the Large and Small Magellanic Cloud are starting to appear. Understanding these differences will provide important insight into th