The Zwicky Transient Facility: System Overview, Performance, and First Results
The Zwicky Transient Facility: System Overview, Performance, and First Results
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DOI：
10.1088/1538-3873/aaecbe
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发表时间：
2019-01-01
影响因子：
3.5
通讯作者：
Zolkower, Jeffry
中科院分区：
文献类型：
--
作者：
Bellm, Eric C.;Kulkarni, Shrinivas R.;Zolkower, Jeffry
兹维基瞬变设施(ZTF)是一种使用Palomar 48英寸施密特望远镜的新的光学时域测量。定制的广视场相机提供47°(2)视野和8 S读数时间，与其前身Palomar瞬变工厂相比，测量速度提高了一个数量级以上。我们描述了摄像机和观测系统的设计和实现。红外处理和分析中心的ZTF数据系统提供近乎实时的简化，以识别运动和变化的对象。我们概述了分析管道、数据产品和相关档案。最后，我们给出了地面性能分析和调试和早期调查的第一批科学结果。ZTF的公共警报流将作为大型天气观测望远镜警报流的有用先驱。
The Zwicky Transient Facility (ZTF) is a new optical time-domain survey that uses the Palomar 48 inch Schmidt telescope. A custom-built wide-field camera provides a 47 deg(2) field of view and 8 s readout time, yielding more than an order of magnitude improvement in survey speed relative to its predecessor survey, the Palomar Transient Factory. We describe the design and implementation of the camera and observing system. The ZTF data system at the Infrared Processing and Analysis Center provides near-real-time reduction to identify moving and varying objects. We outline the analysis pipelines, data products, and associated archive. Finally, we present on-sky performance analysis and first scientific results from commissioning and the early survey. ZTF's public alert stream will serve as a useful precursor for that of the Large Synoptic Survey Telescope.