Tidal Streams as Probes of the Galactic Potential
نویسندگان
چکیده
منابع مشابه
Tidal Streams as Probes of the Galactic Potential
We explore the use of tidal streams from Galactic satellites to recover the potential of the Milky Way. Our study is motivated both by the discovery of the first lengthy stellar stream in the halo (Irwin & Totten 1998) and by the prospect of measuring proper motions of stars brighter than 20th magnitude in such a stream with an accuracy of ∼ 4μas/yr, as will be possible with the Space Interfero...
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Chemical abundances for 23 candidate subgiant stars have been derived with the aim at exploring their usefulness for studies of galactic chemical evolution. High-resolution spectra from ESO CAT-CES and NOTSOFIN covered 16 different spectral regions in the visible part of the spectrum. Some 200 different atomic and molecular spectral lines have been used for abundance analysis of ∼ 30 elemental ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1999
ISSN: 0004-637X
DOI: 10.1086/311876