Three-dimensional dust mapping of the Milky Way using Gaia (B09)

使用盖亚绘制银河系三维尘埃图 (B09)

• 批准号: 265297395
• 金额: --
• 依托单位: Max-Planck-Institut für Astronomie (MPIA)
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/265297395?language=en
• 关键词: Three; dimensional; dust; mapping; Milky

Interstellar dust plays an essential role in the life cycle of stars, as well as in absorbing the light we receive from astronomical sources. Inferring the 3-D distribution of this dust in our Galaxy is important for studying both these aspects. Building on work done and published in the first two phases of the SFB, we will extend our non-parametric Bayesian method of mapping dust. More-over, by using optical and infrared photometry, SDSS-V spectroscopy, and Gaia-DR2/DR3 par-allaxes of millions of stars, we will map dust out to several kpc. Our method produces a plausi-ble, continuous distribution even across unobserved lines of sight, useful in many applications.

星际尘埃在恒星的生命周期中起着至关重要的作用，以及吸收我们从天文来源接收的光。推断这些尘埃在银河系中的三维分布对于研究这两个方面都很重要。在前两个阶段的SFB所做的工作和出版的基础上，我们将扩展我们的非参数贝叶斯方法映射灰尘。此外，通过使用光学和红外测光，SDSS-V光谱学和数百万颗恒星的Gaia-DR 2/DR 3 par-allax，我们将绘制出几kpc的尘埃。我们的方法产生了一个可扩展的，连续的分布，即使在未观察到的视线，在许多应用中有用。