Spectroscopic Analysis of Objects with non-Spherical Envelopes

非球形包络物体的光谱分析

• 批准号: 9987390
• 负责人: Desmond Hillier
• 金额: $ 30.9万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-15 至 2004-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9987390&HistoricalAwards=false
• 关键词: Spectroscopic; Analysis; Objects; non; Spherical

ABSTRACTHillier, Desmond"Spectroscopic Analysis of Objects with non-Spherical Envelopes"AST-9987390In this project a non-equilibrium multi-dimensional program will be created to model the spectra of astrophysical objects with non-spherical geometry, such as Be stars, T Tauri stars, Wolf-Rayet stars, binary stars, novae, supernovae and quasars. The code developed in this project will provide an important diagnostic tool to analyze the data collected with ground- and space-based telescopes at non-optical wavelengths. Such multi-wavelength observations are essential to sample different physical regions of stellar envelopes from which the geometry and structure can be reconstructed. Initial work will concentrate on the development of general models with axial symmetry, outflow and rotation of circumstellar material. The effects of polarization and more complicated geometry will be incorporated in the later stages of the project.Funding for this project was provided by the NSF program for Stellar Astronomy & Astrophysics (AST/SAA

ABSTRACTHillier, Desmond"Spectroscopic Analysis of Objects with non-Spherical Envelopes"AST-9987390In this project a non-equilibrium multi-dimensional program will be created to model the spectra of astrophysical objects with non-spherical geometry, such as Be stars, T Tauri stars, Wolf-Rayet stars, binary stars, novae, supernovae and quasars. 该项目中开发的代码将提供一个重要的诊断工具，以在非光学波长下使用基于地面和空间的望远镜收集的数据。 这种多波长观测对于样本的恒星信封的不同物理区域至关重要，可以从中重建几何和结构。 最初的工作将集中于具有轴向对称性，流出和旋转的通用模型的开发。 两极分化和更复杂的几何形状的影响将纳入项目的后期。该项目的资金由NSF恒星天文学和天体物理学（AST/SAA）提供