Fourier transform imaging spectrocopy and the environment of massive stars

我的项目的第一个目标是通过改进我们团队最近建造的傅里叶变换成像光谱仪的性能，通过为该仪器开发更有效的数据采集和还原技术，并通过对银河系星云和晚期星系的发射线进行详细映射，充分发挥其潜力，开发一种新的积分场光谱方法。第二个目标是描述大质量恒星在不同演化阶段和环境下的物理特性。这将通过(a)对银河系中演化的沃尔夫-拉叶类大质量恒星进行调查来实现；(b)对本星系群内100颗大质量恒星的光谱进行详细的定量分析；(c)绘制单个大质量恒星周围的星系风吹气泡和富含气体的星系的化学丰度，并将观测结果与流体动力学模拟进行比较。

The first objective of my program is to develop a novel approach to integral field spectroscopy by improving the performance of the Fourier transform imaging spectrometer built recently by our team, by developing more efficient data acquisition and reduction techniques for this instrument, and by bringing it to its full potential by performing detailed mappings of emission lines in galactic nebulae and late-type galaxies. The second objective is to characterize the physical properties of massive stars in different evolutionary phases and environments. This will be achieved by (a) performing a survey for evolved, massive stars of the Wolf-Rayet class in the Milky Way galaxy; (b) performing a detailed quantitative analysis of a hundred spectra of massive stars in galaxies of the Local Group; (c) mapping chemical abundances of Galactic wind-blown bubbles around individual massive stars and of gas-rich galaxies, and comparing the observations with hydrodynamic simulations.