Fourier transform imaging spectrocopy and the environment of massive stars

傅里叶变换成像光谱学和大质量恒星的环境

• 批准号: 250212-2006
• 负责人: Drissen, Laurent
• 金额: $ 1.81万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=364785
• 关键词: Fourier; transform; imaging; spectrocopy; environment

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.

我的计划的第一个目标是开发一种新的方法来积分场光谱，通过提高我们的团队最近建造的傅里叶变换成像光谱仪的性能，通过开发更有效的数据采集和减少技术，这个仪器，并通过执行详细的映射银河系星云和晚型星系的发射线，使其充分发挥潜力。第二个目标是描述大质量恒星在不同演化阶段和环境中的物理性质。这将通过以下方式实现：（a）对银河系中沃尔夫-拉叶类的演化大质量恒星进行调查;（B）对本星系群星系中的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银河系风吹气泡和富含气体的星系的化学丰度图，并将观测结果与流体动力学模拟进行比较。