Direct determination of effective temperatures for calibrators in the Gaia mission and the Gaia-ESO-Survey

该项目的总体研究目标是协助提供银河系大型恒星测量所观测到的恒星的精确大气参数，例如天文测量空间飞行任务GAIA及其过多的地面辅助测量。我们获得了在GAIA任务和GAIA-ESO调查中用作校准标准的恒星的干涉观测结果。干涉观测提供角直径的精确测量，并提供独立于传统光谱和光度技术的有效温度的准确直接确定。研究访问的科学目标是对获得的干涉观测进行数据简化和分析。结果将被用来推导有效温度。直接确定的有效温度对于测试和改进恒星大气模型和合成光谱是必要的，这些模型和合成光谱是正确评估GaIA-ESO和GaIA源的大气参数所必需的。该项目将与GAIA-ESO公共光谱调查以及剑桥天文研究所(主办机构)的GAIA-ESO调查成员密切合作完成。

The overall research aim of the project is to assist in delivering precise atmospheric parameters of stars observed by large stellar surveys of the Milky Way, e.g., the astrometric space mission Gaia and its plethora of ground-based complementary surveys. We obtained interferometric observations of stars that are used as calibrating standards in the Gaia mission and the Gaia-ESO Survey. The interferometric observations provide precise measurements of angular diameters, and deliver accurate direct determination of effective temperatures that are independent of traditional spectroscopic and photometric techniques. The scientific goal of the research visit is the data reduction and analysis of the obtained interferometric observations. The results will be used for deriving effective temperatures. The directly determined effective temperatures are necessary for testing and improving stellar-atmosphere models and synthetic spectra that are required for the correct assessment of the atmospheric parameters of the Gaia-ESO and Gaia sources. The project will be accomplish in close collaboration with the Gaia-ESO Public Spectroscopic Survey, together with the Gaia-ESO Survey members at the Institute of Astronomy in Cambridge (host institute).