论文标题
盖亚时代附近主要序列恒星的经验降压校正系数
Empirical Bolometric Correction Coefficients for Nearby Main-Sequence Stars in Gaia Era
论文作者
论文摘要
研究了附近的带有最精确数据的独立式双线要的二进制文件，并发现了290个系统，其中至少一个具有金属性$ 0.008 \ leq Z \ leq leq 0.040 $的主序列组件。研究了恒星参数，光比，GAIA DR2三角类似差异，灭绝和/或红色，仅选择206个系统有资格计算经验性侧验校正。 NASA-IPAC银河粉尘图是灭绝的主要来源。低银河纬度的不可靠灭绝$ | b | \ leq5^o $被单个确定所取代，如果它们存在于文献中，则丢弃了相关的系统。 Main-sequence stars of remaining systems were used to calculate bolometric corrections ($BC$) and to calibrate $BC-T_{eff}$ relation, which is valid in the range 3100-36000 K. De-reddened $(B-V)_0$ colours, on the other hand, allowed us to calibrate two intrinsic colour effective temperature relations, where the linear one is valid for $T_{eff}>10000$ K,虽然二次关系对$ t_ {eff} <10000 $ k有效，也就是说，两者在同一温度范围内都是有效的$ bc-t_ {eff} $关系是有效的。从$ t_ {eff} $和其他天体物理参数计算出的新$ bc $也被列出。
Nearby detached double-lined eclipsing binaries with most accurate data were studied and 290 systems were found with at least one main-sequence component having a metallicity $0.008\leq Z\leq 0.040$. Stellar parameters, light ratios, Gaia DR2 trigonometric parallaxes, extinctions and/or reddening were investigated and only 206 systems were selected eligible to calculate empirical bolometric corrections. NASA-IPAC Galactic dust maps were main source of extinctions. Unreliable extinctions at low Galactic latitudes $|b|\leq5^o$ were replaced with individual determinations, if they exist in the literature, else associated systems are discarded. Main-sequence stars of remaining systems were used to calculate bolometric corrections ($BC$) and to calibrate $BC-T_{eff}$ relation, which is valid in the range 3100-36000 K. De-reddened $(B-V)_0$ colours, on the other hand, allowed us to calibrate two intrinsic colour effective temperature relations, where the linear one is valid for $T_{eff}>10000$ K, while the quadratic relation is valid for $T_{eff}<10000$ K, that is, both are valid in the same temperature range $BC-T_{eff}$ relation is valid. New $BC$ computed from $T_{eff}$ and other astrophysical parameters are tabulated, as well.
