论文标题
Feros光谱上的二元光谱模型的测试。 HD 20784的基本参数的首次估计
Test of binary spectral model on FEROS spectra. First estimation of the fundamental parameters for HD 20784
论文作者
论文摘要
我们使用适用于高分辨率Feros光谱的二元光谱模型分析了26个具有可疑二进制的早期型恒星的光谱。我们确认七个SB2候选者(AE PIC,$ε$ vol,HD 20784,HD 208433,HD 43519,HD 56024,CD-73〜375A)和衍生质量比和质量比和光谱参数。我们发现与理论模型达成很好的一致性。对于略微演变的系统HD 20784,我们对基本参数进行了首次估计,并且年龄$ \ log {t} = 8.5 $ yr。
We analyse spectra of 26 early-type stars, with suspected binarity, using a binary spectral model adapted for high-resolution FEROS spectra. We confirm seven SB2 candidates (AE Pic, $ε$ Vol, HD 20784, HD 208433, HD 43519, HD 56024, CD-73~375A) and derive mass ratios and spectroscopic parameters for them. We find good agreement with theoretical models. For slightly evolved system HD 20784 we made the first estimation of the fundamental parameters and age $\log{t}=8.5$ yr.