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arXiv 1409.2273astro-ph.SR
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用恒星温度对开普勒输入星表消光模型的初步评价

Preliminary Evaluation of the Kepler Input Catalog Extinction Model Using Stellar Temperatures

Gail Zasowski, Deokkeun An, Marc Pinsonneault

摘要:

开普勒输入星表(KIC)提供了它的恒星的红化估计,基于一个简单的指数尘埃屏幕的假设。该项目的重点是评估和改进KIC巨星的这些变红估计,对于这些巨星来说,灭绝比附近的矮星更重要。我们的目标是提高校准(从而一致性)之间的各种光度和光谱温度的恒星在开普勒领域删除系统由于不正确的灭绝假设。然后,修订后的灭绝估计可以用来获得改进的恒星和行星性质。我们计划最终使用大量的KIC恒星作为银河ISM结构和性质的探测器。

英文摘要:

The Kepler Input Catalog (KIC) provides reddening estimates for its stars, based on the assumption of a simple exponential dusty screen. This project focuses on evaluating and improving these reddening estimates for the KIC's giant stars, for which extinction is a much more significant concern than for the nearby dwarf stars. We aim to improve the calibration (and thus consistency) amongst various photometric and spectroscopic temperatures of stars in the Kepler field by removing systematics due to incorrect extinction assumptions. The revised extinction estimates may then be used to derive improved stellar and planetary properties. We plan to eventually use the large number of KIC stars as probes into the structure and properties of the Galactic ISM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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