20yr obs. of the spectroscopic binary EC 20117-4014
收藏B2FIND2026-03-19 收录
下载链接：
https://b2find.eudat.eu/dataset/9a310999-aede-5e22-8800-87e05d0535c8
下载链接
链接失效反馈官方服务：
资源简介：
Among the competing evolution theories for subdwarf-B (sdB) stars is the binary evolution scenario. EC 20117-4014 (=V4640 Sgr) is a spectroscopic binary system consisting of a...
