论文标题
AP-Star HD的基本参数108662
Fundamental parameters of Ap-star HD 108662
论文作者
论文摘要
我们介绍了基于高分辨率频谱和低分辨率分光光度计观测值对AP-Star HD 108662大气的自搭配光谱分析的结果。磁场效应（例如Zeeman扩大和极化线形成）在分析光谱线轮廓中考虑了。我们得出了24个化学元素的丰度以及Fe的分层 - 这是可见波长中线吸收的主要元素。发现另一个丰富的化学元素 - 铬 - 在恒星的大气中均匀分布。从我们的分析中，我们确定了HD〜108662的以下基本参数：$ t_ {eff} $ = 10212 K，log $ g $ = 4.0，$ r/r _ {\ odot} $ = 2.09和log $（l/l/l _ {\ odot}）$ = 1.63。恒星的估计旋转速度为$ v \，sini $ = 20.4 km/s，表面磁场的强度为$ b_s $ = 3300 g。
We present the results of a self-consistent spectroscopic analysis of the atmosphere of Ap-star HD 108662 based on high resolution spectrum and low resolution spectrophotometric observations. Magnetic field effects, such as Zeeman broadening and polarized line formation, were taking into account in the analysis of spectral line profiles. We derived abundances of 24 chemical elements as well as the stratification of Fe -- an element which is the main contributor to the line absorption in the visible wavelengths. Another abundant chemical element -- Chromium -- was found to be distributed homogeneously in the atmosphere of the star. From our analysis we determined the following fundamental parameters of HD~108662: $T_{eff}$ = 10212 K, log$g$ = 4.0, $R/R_{\odot}$ = 2.09 and log$(L/L_{\odot})$ = 1.63. The estimated rotational velocity of the star is $v\,sini$ = 20.4 km/s and the strength of the surface magnetic field is $B_s$ = 3300 G.
