Coughlin, Michael W. and Burdge, Kevin and Duev, Dmitry A. and Katz, Michael L. and van Roestel, Jan and Drake, Andrew and Graham, Matthew J. and Hillenbrand, Lynne and Mahabal, Ashish A. and Masci, Frank J. and Mróz, Przemek and Prince, Thomas A. and Yao, Yuhan and Bellm, Eric C. and Burruss, Rick and Dekany, Richard and Jaodand, Amruta and Kaplan, David L. and Kupfer, Thomas and Laher, Russ R. and Riddle, Reed L. and Rigault, Mickael and Rodriguez, Hector and Rusholme, Ben and Zolkower, Jeffry (2020) The ZTF Source Classification Project: II. Periodicity and variability processing metrics. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20210205-093232236
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Abstract
The current generation of all-sky surveys is rapidly expanding our ability to study variable and transient sources. These surveys, with a variety of sensitivities, cadences, and fields of view, probe many ranges of timescale and magnitude. Data from the Zwicky Transient Facility (ZTF) yields an opportunity to find variables on timescales from minutes to months. In this paper, we present the codebase, ztfperiodic, and the computational metrics employed for the catalogue based on ZTF's Second Data Release. We describe the publicly available, graphical-process-unit optimized period-finding algorithms employed, and highlight the benefit of existing and future graphical-process-unit clusters. We show how generating metrics as input to catalogues of this scale is possible for future ZTF data releases. Further work will be needed for future data from the Vera C. Rubin Observatory's Legacy Survey of Space and Time.
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| Additional Information: | The authors would like to thank our referee, Dr. Aren Heinze, for very useful reports, improving the content of the paper. M. W. Coughlin acknowledges support from the National Science Foundation with grant number PHY-2010970. M. L. K. acknowledges support from the National Science Foundation under grant DGE-0948017 and the Chateaubriand Fellowship from the Office for Science & Technology of the Embassy of France in the United States. MR has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement n759194 - USNAC). DK is supported by NSF grant AST-1816492. The authors acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the research results reported within this paper under project "Identification of Variable Objects in the Zwicky Transient Facility." This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231 under project "Towards a complete catalog of variable sources to support efficient searches for compact binary mergers and their products." This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation grant number ACI-1548562. This work used the Extreme Science and Engineering Discovery Environment (XSEDE) COMET at SDSU through allocation AST-200016. M.L.K. also acknowledges the computational resources and staff contributions provided for the Quest/Grail high performance computing facility at Northwestern University. Based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grant No. AST-1440341 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, the University of Washington (UW), Deutsches Elektronen-Synchrotron and Humboldt University, Los Alamos National Laboratories, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, and Lawrence Berkeley National Laboratories. Operations are conducted by Caltech Optical Observatories, IPAC, and UW. | ||||||||||||||||||||||||||||||||||||||||
| Group: | Astronomy Department, Infrared Processing and Analysis Center (IPAC), Space Radiation Laboratory, Zwicky Transient Facility | ||||||||||||||||||||||||||||||||||||||||
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| Subject Keywords: | techniques: photometric, stars: statistics, methods: data analysis, catalogues, surveys | ||||||||||||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20210205-093232236 | ||||||||||||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20210205-093232236 | ||||||||||||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||||||||||||
| ID Code: | 107932 | ||||||||||||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||||||||||||
| Deposited By: | George Porter | ||||||||||||||||||||||||||||||||||||||||
| Deposited On: | 05 Feb 2021 22:59 | ||||||||||||||||||||||||||||||||||||||||
| Last Modified: | 05 Feb 2021 22:59 |
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