标题： 一种用于SEDMachine的完全自动化的积分场光谱仪数据处理流水线：pysedm 显示英文标题

标题： A Fully Automated Integral Field Spectrograph Pipeline for the SEDMachine: pysedm

摘要： 当前时域设施每周发现数百个新的银河系和河外瞬变源。 对不断增长的瞬变源数量进行分类具有挑战性，但对进一步理解它们的性质、发现新类别或确保样本纯度至关重要，例如，对于超新星 Ia 宇宙学。 Zwicky 瞬变设施是此类调查的一个例子。 此外，它有一个专用的低分辨率光谱仪 SEDMachine，安装在帕洛马 60 英寸望远镜上。 该光谱仪的主要目的是对象分类。 实际上，几乎所有亮度高于约 19 星等的感兴趣瞬变源都会被分类。 这相当于每晚大约 10 到 15 个目标。 在本文中，我们介绍了 SEDMachine 的全自动流程。 该流程设计为快速、稳健、稳定且非常灵活。 pysedm 能在曝光结束后不到 5 分钟内实现对目标点源对象的全自动光谱提取。 光谱颜色校准精度在百分之几的水平。 自 2018 年 8 月初 pysedm 进入生产以来的 19 周里，我们已经对包括大约 400 个 Ia 型超新星和 140 个 II 型超新星在内的多种天体进行了分类。 我们得出结论，像安装在南半球 2 米级望远镜上的 `SEDMachine with pysedm' 这样的低分辨率全自动光谱仪，可以让我们自动同时对 LSST 在 z<0.2 范围内检测到的大多数（如果不是全部）明亮瞬变源进行分类和获取红移，特别是可能所有 Ia 型超新星。 与当前的 SEDM 设计相比，这将需要更高的光谱分辨率（R~1000）和稍高的透过率。 考虑到这一点，pysedm 被设计为可以轻松适应任何类似 IFU 的光谱仪（参见 https://github.com/MickaelRigault/pysedm）。 显示英文摘要

摘要： Current time domain facilities are discovering hundreds of new galactic and extra-galactic transients every week. Classifying the ever-increasing number of transients is challenging, yet crucial to further our understanding of their nature, discover new classes, or ensuring sample purity, for instance, for Supernova Ia cosmology. The Zwicky Transient Facility is one example of such a survey. In addition, it has a dedicated very-low resolution spectrograph, the SEDMachine, operating on the Palomar 60-inch telescope. This spectrograph's primary aim is object classification. In practice most, if not all, transients of interest brighter than ~19 mag are typed. This corresponds to approximately 10 to 15 targets a night. In this paper, we present a fully automated pipeline for the SEDMachine. This pipeline has been designed to be fast, robust, stable and extremely flexible. pysedm enables the fully automated spectral extraction of a targeted point source object in less than 5 minutes after the end of the exposure. The spectral color calibration is accurate at the few percent level. In the 19 weeks since pysedm entered production in early August of 2018, we have classified, among other objects, about 400 Type Ia supernovae and 140 Type II supernovae. We conclude that low resolution, fully automated spectrographs such as the `SEDMachine with pysedm' installed on 2-m class telescopes within the southern hemisphere could allow us to automatically and simultaneously type and obtain a redshift for most (if not all) bright transients detected by LSST within z<0.2, notably potentially all Type Ia Supernovae. In comparison to the current SEDM design, this would require higher spectral resolution (R~1000) and slightly improved throughput. With this perspective in mind, pysedm has been designed to easily be adaptable to any IFU-like spectrograph (see https://github.com/MickaelRigault/pysedm).