The Bottom of the Main Sequence — And Beyond

The Bottom of the Main Sequence — And Beyond
Author :
Publisher : Springer Science & Business Media
Total Pages : 311
Release :
ISBN-10 : 9783540492177
ISBN-13 : 3540492178
Rating : 4/5 (77 Downloads)

Book Synopsis The Bottom of the Main Sequence — And Beyond by : Christopher G. Tinney

Download or read book The Bottom of the Main Sequence — And Beyond written by Christopher G. Tinney and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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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