The Most Efficient Tool for very High Resolution and very High Signal to Noise Ratio Spectral Observation of Stars
نویسندگان
چکیده
منابع مشابه
- Poor Stars . Viii . High - Resolution , High - Signal - to - Noise Analysis
High-resolution, high-signal-to-noise (〈S/N〉 = 85) spectra have been obtained for five stars – CD–2417504, CD–38245, CS 22172–002, CS 22885–096, and CS 22949–037 – having [Fe/H] . –3.5 according to previous lower S/N material. LTE model-atmosphere techniques are used to determine [Fe/H] and relative abundances, or their limits, for some 18 elements, and to constrain more tightly the early enric...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1988
ISSN: 0074-1809
DOI: 10.1017/s0074180900034690