The Three-Dimensional Structure of the Milky Way

斯珀格尔博士项目的目标是合成成长中的身体 观测数据表明我们的银河系 具有显著的非轴对称结构。 改善 红外线技术使天文学家能够观察到 银河系中心波长不被尘埃遮蔽。 这些 观测表明我们的银河系是封闭的。 无线电波长 对银河系气体运动的调查显示， 可能是由于这个酒吧的圆周运动。 斯伯格医生 计划开发分析和数值技术， 银河系的三维模型， 观察。 提高我们对轨道的理解 三轴系统中的动力学以及数值模拟的改进 技术和计算机硬件将有助于这项研究。 博士 Spergel还计划研究电磁波的动力学， 棒和银河球体激发的螺旋密度波 并探索这些波如何改变银河系中的气体运动。 最终，这项研究的目标是更好地了解 银河系的形态和动力学， 它的起源和进化

The goal of Dr. Spergel's project is to synthesize the growing body of observational data that suggests that our Galaxy, the Milky Way, has significant non-axisymmetric structure. Improvements in infrared technology have enabled astronomers to observe the galactic center at wavelengths not obscured by dust. These observations suggest that our Galaxy is barred. Radio wavelength surveys of gas motions in our Galaxy reveal significant non- circular motions that are likely due to this bar. Dr. Spergel plans to develop analytical and numerical techniques to construct a three-dimensional model of the Milky Way that is consistent with the observations. Improvements in our understanding of orbital dynamics in triaxial systems as well as improvements in numerical techniques and computer hardware will facilitate this study. Dr. Spergel also plans to study the dynamics of corrugation waves and spiral density waves excited by the bar and the galactic spheroid and to explore how these waves alter gas motions in the Galaxy. Ultimately the goal of this research is to better understand the morphology and dynamics of the Milky Way and to provide insight into its origin and evolution.