The Zwicky Transient Facility: System Overview, Performance, and First Results

2018/12/07 by Eric C. Bellm, Shrinivas R. Kulkarni, S. R. Kulkarni +154 · 2,075 citations
Engineering · Physics and Astronomy · #Computer science #Environmental science #Gamma-ray bursts and supernovae #Operating system #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #Transient (computer programming) #astro-ph.IM

paper · pdf · open access · doi:10.1088/1538-3873/aaecbe

published in Publications of the Astronomical Society of the Pacific 131(995), 018002 (Institute of Physics) · Published in PASP Focus Issue on the Zwicky Transient Facility (https://dx.doi.org/10.1088/1538-3873/aaecbe). 21 Pages, 12 Figures

openalex publication_date 2018/12/07 · arxiv created 2019/02/05 · arxiv updated 2019/02/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

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 deg² field of view and 8 second readout time, yielding more than an order of magnitude improvement in survey speed relative to its predecessor survey, the Palomar Transient Factory (PTF). 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.

Citations

• FIRST RESULTS FROM THE CATALINA REAL-TIME TRANSIENT SURVEY
• DAOPHOT - A computer program for crowded-field stellar photometry

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