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.

该计划包括LARS星系的高分辨率PMAS观测，其中存在广泛的HST和其他多波长数据。新的观测涵盖了从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。我们的目标是解耦不同的电离气体的运动学分量，并推导出恒星运动学的13个本地莱曼α发射器，这是莱曼α参考样本的一部分。此外，我们将能够追踪电离和建立消光图，这将被用来校正尘埃衰减，并计算精确的星星形成率在千秒差距尺度。拟议的观测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α光子的逃逸。