Multi-Wavelength Long-Baseline Interferometric Study of Evolved Stars

丹奇博士将对演化恒星周围的尘埃和气体进行高角分辨率观测，其科学目标是提供100个恒星半径以外的恒星周围物质的形态、运动学和物理条件的详细描述。该计划将利用加州大学伯克利分校的红外空间干涉仪在8-12微米范围内提供非常高的空间分辨率观测，并在凯克望远镜上提供近红外的非冗余孔径掩蔽技术。这些观测和分析的结果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.