论文标题
CZEV1731：独特的双重黯然失色的四倍系统
CzeV1731: The unique doubly eclipsing quadruple system
论文作者
论文摘要
我们报告了相对明亮（V = 10.5 mag）的发现，并倍增2+2四倍系统CZEV1731。这是同类系统中的第三个已知系统，其中确定所有四个恒星的质量，并且内部和外轨道都表征了。内部远程二进制文件是在圆形轨道上移动的完善的系统：与周期pA = 4.10843 d和PB配对a配对a，pb = 4.67552 d。内部二进制文件包含非常相似的组件（q = 1.0），使整个系统成为所谓的双双胞胎。对B中的恒星具有较大的亮度和质量，并且对A的表现出更深的日食。所有四个组件都是f/g光谱类型的主要序列恒星。 barycenter周围两个对的相互轨道的周期约为34岁，偏心率约为0.38。但是，需要进一步的观察来揭示整个系统的整体体系结构，包括所有轨道的相互倾向。这是干涉测量法检测约59 MAS和DMBOL <1 mag的双重目标的有希望的目标。 （可通过CD可用的RV和ETV数据）
We report the discovery of the relatively bright (V = 10.5 mag), doubly eclipsing 2+2 quadruple system CzeV1731. This is the third known system of its kind, in which the masses are determined for all four stars and both the inner and outer orbits are characterized. The inner eclipsing binaries are well-detached systems moving on circular orbits: pair A with period PA = 4.10843 d and pair B with PB = 4.67552 d. The inner binaries contain very similar components (q = 1.0), making the whole system a so-called double twin. The stars in pair B have slightly larger luminosities and masses and pair A shows deeper eclipses. All four components are main-sequence stars of F/G spectral type. The mutual orbit of the two pairs around the system barycenter has a period of about 34 yr and an eccentricity of about 0.38. However, further observations are needed to reveal the overall architecture of the whole system, including the mutual inclinations of all orbits. This is a promising target for interferometry to detect the double at about 59 mas and dMbol < 1 mag. (The RV and ETV data available via CDS)
