PMAS Observations "Halpha kinematics of the Extended Lyman alpha Reference Sample"

PMAS 观察“扩展莱曼 alpha 参考样本的 Halpha 运动学”

• 批准号: 315506974
• 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/315506974?language=en
• 关键词: PMAS; Observations; Halpha; kinematics; Extended

We propose to observe members of the Extendend Lyman Alpha Reference Sample (eLARS), a pan-chromatic survey of 42 nearby laboratory star-forming galaxies in which we are studying the complex physics of the resonant Lyman radiative transfer. Spatially resolved spectroscopy of Ha emission in the eLARS galaxies traces the intrinsic Lya radiation field in real and frequency space, therefore constraining the initial conditions of the Lya radiation transport through the interstellar medium. In conjunction with our suite of HST imaging and spectroscopy and VLA HI observations, these data will be vital to build a coherent picture of Ly radiative transfer in galaxies, thereby supporting the interpretation of existing and upcoming high-redshift Lya emitter samples.

我们建议观察扩展莱曼阿尔法参考样本（eLARS）的成员，这是一个对附近42个实验室恒星形成星系的全色调查，我们正在研究共振莱曼辐射转移的复杂物理学。eLARS星系中Ha发射的空间分辨光谱在真实的和频率空间中追踪了本征Lya辐射场，从而限制了Lya辐射通过星际介质传输的初始条件。结合我们的HST成像和光谱学以及VLA HI观测，这些数据对于建立星系中Ly辐射传输的相干图像至关重要，从而支持对现有和即将到来的高红移Lya发射体样品的解释。

项目成果

The Lyα Reference Sample. VIII. Characterizing Lyα Scattering in Nearby Galaxies

Lyα 参考样本 VIII 表征附近星系中的 Lyα 散射

• DOI: 10.3847/1538-4357/aa9932
• 发表时间: 2018
• 期刊: The Astrophysical Journal
• 作者: Bridge;Melinder;Östlin;Gronwall;Ciardullo;Cannon;Gronke;Guaita;Herenz;Laursen;Mas-Hesse
• 通讯作者: Mas-Hesse