Multi-Wavelength Long-Baseline Interferometric Study of Evolved Stars

Danchi，William AST-9731625 Danchi博士将开展一项高角分辨率观测演化恒星周围尘埃和气体的计划，其科学目标是详细描述100个恒星半径以外的星周区域物质的形态、运动学和物理条件。 该方案将利用加州大学伯克利分校的红外空间干涉仪提供8 - 12微米的极高空间分辨率观测，并利用凯克望远镜的近红外非冗余孔径掩蔽技术。 这些观测结果及其分析将提供有关演化恒星质量损失过程的信息。

Danchi, William AST-9731625 Dr. Danchi will carry out a program of high-angular resolution observations of dust and gas surrounding evolved stars, with the scientific goals of providing a detailed description of the morphology, kinematics, and physical conditions of material in the circumstellar regions out to 100 stellar radii away. The program will make use of the UC Berkeley Infrared Spatial Interferometer to provide very high spatial resolution observations at 8 - 12 microns, and a non-redundant aperture masking technique in the near-infrared on the Keck telescope. Results from these observations and their analysis will provide information on the process of mass loss in evolved stars.