论文标题
Lyman Alpha光谱数据库（LASD）
The Lyman Alpha Spectral Database (LASD)
论文作者
论文摘要
从星形星系中产生的Lyman $α$（LY $α$）排放是研究各种天体物理问题的重要工具：它有可能携带有关源银河系的信息，即附近的圆形培养基，以及周围的层间层次介质。因此，许多观察和理论工作都集中在理解该排放线的细节上。但是，由于缺乏光谱参考样本，这些努力受到了阻碍，这些样本既可以用作观察性研究的比较，又可以用作理论工作的关键测试。因此，我们在低红移和高红移中编制了大量的Ly $α$ Spectra样本，并在http://lasd.lyman-alpha.com上创建了一个公开可用的在线数据库。 Lyman Alpha光谱数据库（LASD）托管这些光谱，以及针对整个样品均匀测量的大量光谱和运动量。这些可以轻松地在线查看并以表格形式下载。 LASD具有轻松上传自己的LY $α$ Spectra的能力，并且将进行所有相同的光谱测量值，并报告并摄入到数据库中。我们积极邀请社区这样做，LASD旨在成为长期的社区资源。在本文中，我们介绍了数据库的设计以及基础算法的描述以及数据库中的初始LY $α$发射器样本。
Lyman $α$ (Ly$α$) emission from star-forming galaxies is an important tool to study a large range of astrophysical questions: it has the potential to carry information about the source galaxy, its nearby circumgalactic medium, and also the surrounding intergalactic medium. Much observational and theoretical work has therefore focused on understanding the details of this emission line. These efforts have been hampered, however, by an absence of spectroscopic reference samples that can be used both as comparisons for observational studies and as critical tests for theoretical work. For this reason we have compiled a large sample of Ly$α$ spectra, at both low and high redshift, and created a publicly available online database, at http://lasd.lyman-alpha.com. The Lyman alpha Spectral Database (LASD) hosts these spectra, as well as large set of spectral and kinematic quantities that have been homogeneously measured for the entire sample. These can easily be viewed online and downloaded in tabular form. The LASD has the capacity for users to easily upload their own Ly$α$ spectra, and all the same spectral measurements will be made, reported, and ingested into the database. We actively invite the community to do so, and the LASD is intended to be a long-term community resource. In this paper we present the design of the database as well as descriptions of the underlying algorithms and the initial Ly$α$ emitter samples that are in the database.
