Spectral analysis of the secondary in the AA Dor system with PHOENIX/3D

使用 PHOENIX/3D 对 AA Dor 系统中的二次波进行光谱分析

• 批准号: 319856396
• 负责人: Professor Dr. Peter H. Hauschildt
• 金额: --
• 依托单位: Lunar and Planetary Laboratory
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/319856396?language=en
• 关键词: Spectral; analysis; secondary; AA; Dor

This project's goal is to compute full 3D radiative transfer models of the irradiated atmosphere of the low mass secondary of the AA Dor post common envelope binary system. There are many high quality observations of this system, e.g., with UVES and XSHOOTER. The primary is a sdO star with an effective temperature of 42000K which irradiates and strongly heats the day-side of the close by secondary, whereas the night-side remains at low temperature. In a previous project we have computed new 1.5D "patchwork'' models with improved micro-physics (spectral lines and dust data, equation of state, NLTE). These models will be combined in this project with our 3D radiative transfer simulations to generate phase-dependent spatially resolved spectro-images and spectra of the AA Dor secondary and the system as a unit. The results will be compared with the existing observed data and used to analyse the spectra.

该项目的目标是计算AA DOR后公共包络双星系统低质量次级大气辐照大气的全3D辐射传输模型。有许多对该系统的高质量观测，例如，使用UVES和XShooter。主星是一颗有效温度为42000K的SDO星，它对次星附近的白天进行照射和强烈加热，而夜间则保持在较低的温度。在以前的一个项目中，我们计算了新的1.5维“拼接”模型和改进的微观物理(谱线和尘埃数据，状态方程，NLTE)。在这个项目中，这些模型将与我们的3D辐射传输模拟相结合，生成AA DOR二级和系统作为一个单元的相变的空间分辨光谱图像和光谱。结果将与现有的观测数据进行比较，并用于光谱分析。