Titlebook: H II Regions and Related Topics; Proceedings of a Sym T. L. Wilson,D. Downes Conference proceedings 1975 Springer-Verlag Berlin Heidelberg

Defraud

Compact H II regions, mainly radio observations,Small dense clumps of ionized gas exist during various stages in the evolution of H II regions. They can be manifest as bright rims or as very small, very compact H II regions surrounding new born stars. Examples of both types of objects are given and some speculation is made about how massive stars are formed.

流浪者

CAMEO

Gudgeon

Terminal

Masers associated with galactic H II regions,iscovered in our Galaxy. This report deals with three problems: (a) a pumping mechanism for OH and H.O masers; (2) formation of maser condensations; (3) mechanisms for the polarization of maser emission. We then summarize the complete picture for OH and H.O maser emission.

arrhythmic

NEX

https://doi.org/10.1007/978-3-662-30404-4s density in the envelope pushes the Strömgren sphere of the star onto the stellar surface. We suggest that in the neutral gas envelope close to the star the conditions are favourable for SiO maser formation. More specifically we propose that the BN object is the source of maser emission observed in

上釉彩

judicial

Schlemms-Canal

Dennis Matotek,James Turnbull,Peter Lieverdinkf this lower bound. We then see how to improve this relation in the case of Sturmian words where the product of the smallest frequency and the recurrence function is bounded for most of the lengths of factors. We also indicate how to construct Sturmian words having a prescribed behaviour for the sma