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

该计划包括对LARS星系的高分辨率PMAS观测，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。我们的目标是分离电离气体的不同运动学成分，并推导出13个局部莱曼阿尔法发射体的恒星运动学，这些发射体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，用于校正尘埃衰减，并计算KPC尺度下的准确恒星形成率。拟议的观测结合已有的多波长数据，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。

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.