论文标题
一种用多播标准侧验校正改善标准恒星亮度的方法
A Method of Improving Standard Stellar Luminosities with Multiband Standard Bolometric Corrections
论文作者
论文摘要
406个具有最准确的天体物理参数的主要序列恒星的标准发光度（$ L $）可以从Johnson $ b，V $和Gaia Edr3 $ g $，$ g_ {bp} $，$ g_ {rp} $ fileters的绝对幅度和降量校正中预测。首先，从209 ddeb（双层衬里的分离要的二进制文件）的参数中获得了所需的多台$ bc $和$ bc-t_ {eff} $关系。制定了简化的SED，以提供依赖滤波器的组件贡献和星际变暗，这对于实际上在任何过滤器上计算组件的$ bc $至关重要。星星的平均标准$ l $是根据平均$ m_ {bol} $计算的，这是在不同过滤器上预测的独立$ m_ {bol} $值的数学平均值，而$ l $的不确定性是从平均$ $ m_ {bol} $的不确定性中传播的不确定性。根据Stefan-Boltzmann法律，将样品星的平均标准$ L $与相应的$ L $值进行了比较。找到了很高的相关性（$ r^2> 0.999 $）。比较错误的直方图分布表明，与Stefan-Boltzmann Law相关的不确定性（$ \ sim2.5 $ $ \ sim2.5 $）的不确定性比Stefan-Boltzmann Law的不确定性（$ \ sim2.5 $）小得多。增加用于预测平均$ M_ {BOL} $的过滤器数量会提高标准恒星光度的准确性。首次证明了主要的恒星的灭绝定律，颜色的关系和颜色过多的Gaia Passbands的颜色过剩关系。
Standard luminosity ($L$) of 406 main-sequence stars with the most accurate astrophysical parameters are predicted from their absolute magnitudes and bolometric corrections at Johnson $B,V$, and Gaia EDR3 $G$, $G_{BP}$, $G_{RP}$ filters. Required multiband $BC$ and $BC-T_{eff}$ relations are obtained first from the parameters of 209 DDEB (Double-lined Detached Eclipsing Binaries) with main-sequence components and Gaia EDR3 parallaxes. A simplified SED is formulated to give filter dependent component light contributions and interstellar dimming, which are essential in computing $BC$ of a component virtually at any filter. The mean standard $L$ of a star is calculated from the mean $M_{Bol}$ which is a mathematical average of independent $M_{Bol}$ values predicted at different filters, while the uncertainty of $L$ is the uncertainty propagated from the uncertainty of the mean $M_{Bol}$. The mean standard $L$ of the sample stars are compared to the corresponding $L$ values according to the Stefan-Boltzmann law. A very high correlation ($R^2>0.999$) is found. Comparing histogram distributions of errors shows that uncertainties associated with the mean standard $L$ (peak at $\sim2.5$ per cent) are much smaller than the uncertainties of $L$ (peak at $\sim8$ per cent) by the Stefan-Boltzmann law. Increasing the number of filters used in predicting the mean $M_{Bol}$ increases the accuracy of the standard stellar luminosity. Extinction law, color-color relations and color excess - color excess relations for Gaia passbands are demonstrated for main-sequence stars for the first time.
