PMAS Observations "Mapping ionization, extinction, stellar kinematics of LARS galaxies"

PMAS 观测“绘制 LARS 星系的电离、消光、恒星运动学图”

• 批准号: 315506815
• 负责人: Professor Dr. Martin Matthias Roth
• 金额: --
• 依托单位: Leibniz-Institut für Astrophysik Potsdam (AIP)
• 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 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/315506815?language=en
• 关键词: PMAS; Observations; Mapping; ionization; extinction

The program consists of high-resolution PMAS observations of LARS galaxies for which extensive HST and other multiwavelength data exist. The new observations cover the galaxies rest-frame range from Hbeta to [OIII] 5007, which will complement our PMAS Halpha data gained in 2011 and 2012. We aim to decouple different kinematic components of the ionized gas and to derive stellar kinematics of 13 local Lyman alpha emitters, which are part of the Lyman Alpha Reference Sample. In addition, we will be able to trace the ionization and establish extinction maps, which will be used to correct for dust attenuation, and calculate accurate star formation rates at kpc scales. The proposed observations combined with already available multi-wavelength data will allow us to improve the understanding how kinematics and the dust distribution influence the escape of the Lyman-alpha photons.

该计划由 LARS 星系的高分辨率 PMAS 观测组成，其中存在大量的 HST 和其他多波长数据。新的观测覆盖了从 Hbeta 到 [OIII] 5007 的星系静止框架范围，这将补充我们在 2011 年和 2012 年获得的 PMAS Halpha 数据。我们的目标是解耦电离气体的不同运动学分量，并推导出 13 个局部恒星运动学。莱曼阿尔法发射器，是莱曼阿尔法参考样本的一部分。此外，我们将能够追踪电离并建立消光图，这将用于校正尘埃衰减，并在 kpc 尺度上计算准确的恒星形成率。所提出的观测结果与现有的多波长数据相结合，将使我们能够更好地理解运动学和尘埃分布如何影响莱曼阿尔法光子的逃逸。