论文标题
大规模的二进制系统9 SGR重新审视：对解开方法的新见解
The Massive Binary System 9 Sgr Revisited: New Insights into Disentangling Methods
论文作者
论文摘要
通常需要解开技术来获取二进制或多个系统各个组件的光谱。对Marchenko，Moffat和Eenens（1998）的移位算法进行了彻底的分析表明，在许多情况下，线通量的繁殖很差，并且出现了虚假的机翼。讨论了这些差异的原因，并提出了一个新的解开包QER20，可大大减少这些错误并大大提高性能。当应用于大型二进制9 SGR时，我们的新代码会产生与先前发表的线条较大的线路通量，并导致我们将光谱分类修改为较早的亚型：o3V（（f +））的次级和o5V（（f））的频谱分类。我们表明，使用MME98算法，在使用QER20软件包时，二进制中的大型恒星的分类可以减少几个子类型。
Disentangling techniques are often needed to obtain the spectra of the individual components of binary or multiple systems. A thorough analysis of the shift-and-add algorithm of Marchenko, Moffat, & Eenens (1998) reveals that in many cases the line fluxes are poorly reproduced and spurious wings appear. The causes of these discrepancies are discussed and a new disentangling package, QER20, is presented which significantly reduces these errors and vastly increases the performance. When applied to the massive binary 9 Sgr, our new code yields line fluxes which are notably different from those previously published and lead us to revise the spectral classification to slightly earlier subtypes: O3V((f +)) for the primary and O5V((f)) for the secondary. We show that with the MME98 algorithm the classification of massive stars in binaries can be off by several subtypes whilst there are no such errors when the QER20 package is used.
