论文标题
重新讨论黯然失色的二进制文件。纸I.完全分散的B型系统Zeta Phoenicis
Rediscussion of eclipsing binaries. Paper I. The totally-eclipsing B-type system zeta Phoenicis
论文作者
论文摘要
$ζ$ Phoenicis是一个包含B6V和B8V星的明亮二进制系统。它具有深层和环形的蚀，一个略微偏心的轨道，周期为1.669 d，apsidal运动，在较宽的轨道上是第三个身体。分析了该系统的过渡系外行星调查卫星光曲线和发布的径向速度，以确定3.91 +/- 0.06 MSUN和2.54 +/- 0.03 MSUN和RADII的质量为2.84 +/- 0.02 RSUN和1.89 RSUN和1.89 +/- 0.01 RSUN。与系统的最终距离与其三角视差一致。除次级成分的有效温度外，恒星的物理特性可以与太阳化学成分的几组理论恒星进化模型的预测相匹配，年龄为70至90 MYR。鼓励对该系统进行光谱分析，以确定恒星的光球化学成分，以及改进的质量测量和有效的温度。
$ζ$ Phoenicis is a bright binary system containing B6V and B8V stars. It has deep total and annular eclipses, a slightly eccentric orbit with a period of 1.669 d, apsidal motion and a third body on a wider orbit. The Transiting Exoplanet Survey Satellite light curve and published radial velocities of this system are analysed to determine masses of 3.91 +/- 0.06 Msun and 2.54 +/- 0.03 Msun and radii of 2.84 +/- 0.02 Rsun and 1.89 +/- 0.01 Rsun. The resulting distance to the system is in agreement with its trigonometric parallax. The physical properties of the stars, with the exception of the effective temperature of the secondary component, can be matched by the predictions of several sets of theoretical stellar evolutionary models for a solar chemical composition and an age of 70 to 90 Myr. A spectroscopic analysis of this system is encouraged for the determination of the photospheric chemical composition of the stars, plus improved measurements of their masses and effective temperatures.
