Bottom Of The Main Sequence - And Beyond

Proceedings Of The Eso Workshop Held In Garching, Germany, 10–12 August 1994

 

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The proceedings of this workshop should probably be prefaced with a few words on some of the more confusing jargon. The phrases "Very Low-Mass star" , "VLM star", or simply "VLM" are now used fairly uniformly by as­ tronomers studying the stars at the bottom of the hydrogen-burning stellar main sequence - unfortunately, however, there is no clear definition as to what constitutes a VLM star. The reader should be warned that VLM stars are variously considered to be stars with; masses less than 0.3M ; masses 0 less than 0.1M ; spectra later than about M6-7; luminosities fainter than 0 Mv = 15; or luminosities fainter than Mbol = 12. The important features of a VLM star, however, would seem to be (1) that it is about as faint as a star can be, and (2) that it still remains a star (ie. it still burns hydrogen) . All of the above criteria, therefore, would seem to qualify an object as a VLM star, and requiring a more stringent definition is probably quibbling.

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Bottom Of The Main Sequence - And Beyond
Proceedings Of The Eso Workshop Held In Garching, Germany, 10–12 August 1994
ISBN:
9783540492177
Ano de edição:
06-2013
Editor:
Springer Berlin Heidelberg
Idioma:
Inglês
Tipo de Produto:
eBook
Formato:
PDF para ADE i
EAN:
9783540492177
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