标题： 从分离分量光谱得出的丰度：掩食双星 V578 Mon 显示英文标题

标题： Abundances from disentangled component spectra: the eclipsing binary V578 Mon

摘要： V578 Mon双星早期B型星组分的化学丰度是从分离出的组分光谱中推导出来的。 这是一项试点研究，表明即使有适度的高线宽化，金属丰度也可以从分离出的光谱中以相对于相同光谱型的尖线单星精确到0.1dex的精度推导出来。 由于该双星作为Rosette星云团簇NGC 2244的一员较为年轻，因此非常适合进行这种评估，这加强了对其未演化零年龄主序化学成分的预期。 这种方法对于研究主序星中旋转驱动的混合现象具有重要意义，在（食变）双星中基本恒星参数可以更准确地确定。 本文还包含了对分离出的光谱中可能存在的偏差的评估。 显示英文摘要

摘要： Chemical abundances of the early-B type components of the binary V578 Mon are derived from disentangled component spectra. This is a pilot study showing that, even with moderately high line-broadening, metal abundances can be derived from disentangled spectra with a precision 0.1 dex, relative to sharp-lined single stars of the same spectral type. This binary is well-suited for such an assessment because of its youth as a member of the Rosette Nebula cluster NGC 2244, strengthening the expectation of an unevolved ZAMS chemical composition. The method is of interest to study rotational driven mixing in main-sequence stars, with fundamental stellar parameters known with higher accuracy in (eclipsing) binaries. The paper also includes an evaluation of the bias that might be present in disentangled spectra.