{"product_id":"the-bottom-of-the-main-sequence-and-beyond-proceedings-of-the-eso-workshop-held-in-garching-germany-10-12-august-1994-so","title":"The Bottom of the Main Sequence — And Beyond","description":"\u003cp\u003e\"The Bottom of the Main Sequence — And Beyond\" by Christopher G. Tinney is a astronomy book and space science reference focused on Deep Sky \u0026amp; Solar System. Best for students, researchers, and serious astronomy enthusiasts.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e","brand":"Springer","offers":[{"title":"Default Title","offer_id":46417893884103,"sku":"1-99-523-000333","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/9575\/6487\/files\/9783662224823.jpg?v=1776310769","url":"https:\/\/snowflakeskies.com\/products\/the-bottom-of-the-main-sequence-and-beyond-proceedings-of-the-eso-workshop-held-in-garching-germany-10-12-august-1994-so","provider":"Snowflake Skies","version":"1.0","type":"link"}