Improved obs. & analysis of eclipsing and other variables, tracers of stellar evolution & challenges to theory

变星，尤其是那些在星团中发现的变星，是了解恒星内在特性、起源、演化和命运的关键研究工具。在新的光度红外滤光系统的帮助下，将提高红外变星光曲线的精度，以及改进光曲线建模代码和技术，我希望能够获得比以前更精确和准确的恒星参数。此外，从卡尔加里大学罗斯尼天体物理天文台获得的数据将使我们能够继续用贝克-纳恩巡逻相机发现新的变星，并继续用RAO的0.4米和1.8米望远镜以及其他位置良好、维护良好的观测站（如拉古纳山）进行观测。通过我在印度-加拿大ASTROSAT任务中使用紫外线仪器，紫外线数据可能会被添加到广泛的数据套件中，以进一步改进选定情况下的恒星温度和星际变红。进一步改进光曲线分析工具将允许从该任务、GAIA任务和其他任务中获得的数据，以产生测试下一代恒星结构和演化模型所需的精度和准确性。

Variables stars, especially those found in star clusters, are key research tools in understanding the intrinsic properties of the stars, their origins, evolution, and destinies.  With the help of a new photometric infrared filter system that will increase the precision of infrared variable star light curves, and with improved light curve modeling code and techniques, I expect to be able to obtain more precise and accurate parameters of stars than previously was possible. In addition, data obtained at the University of Calgary's Rothney Astrophysical Observatory will enable us to continue to make new variable star discoveries with the Baker-Nunn Patrol Camera, and to follow up those discoveries with observations with the 0.4-m and 1.8-m telescopes of the RAO and at other, well-sited and maintained observatories such as Mt. Laguna.  Through my involvement with the UVIT instrument on the Indo-Canadian ASTROSAT mission, UV data may be added to the broad suite of data to further refine both stellar temperatures and interstellar reddening for selected cases.  The improvement of further light curve analysis tools will permit data obtained from that mission, the GAIA mission, and others, to  yield the precision and accuracy required to test the next generation of stellar structure and evolution models.