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A catalogue of over 10 million variable source candidates in ZTF Data Release 1

Ofek, Eran O. and Soumagnac, Maayane and Nir, Guy and Gal-Yam, Avishay and Nugent, Peter and Masci, Frank and Kulkarni, Shri R. (2020) A catalogue of over 10 million variable source candidates in ZTF Data Release 1. Monthly Notices of the Royal Astronomical Society, 499 (4). pp. 5782-5790. ISSN 0035-8711.

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Variable sources probe a wide range of astrophysical phenomena. We present a catalogue of over 10 million variable source candidates found in Data Release 1 (DR1) of the Zwicky Transient Facility (ZTF). We perform a periodicity search up to a frequency of 160 d⁻¹, and we classify the light curves into erratic and smooth variables. We also present variability indicators and the results of a periodicity search, up to a frequency of 5 d⁻¹, for about 1 billion sources in the ZTF-DR1 light curve data base. We present several new short-period (<90 min) candidates, and about 60 new dwarf nova candidates, including two candidate eclipsing systems. Both the 10 million variables catalogue and ∼1 billion source catalogue are available online in catsHTM format.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Ofek, Eran O.0000-0002-6786-8774
Soumagnac, Maayane0000-0001-6753-1488
Gal-Yam, Avishay0000-0002-3653-5598
Nugent, Peter0000-0002-3389-0586
Masci, Frank0000-0002-8532-9395
Kulkarni, Shri R.0000-0001-5390-8563
Alternate Title:A catalog of over ten million variable source candidates in ZTF data release 1
Additional Information:© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( Accepted 2020 August 17. Received 2020 July 27; in original form 2020 May 31. EOO is grateful for the support by grants from the Israel Science Foundation, Minerva, Israeli Ministry of Technology and Science, the US-Israel Binational Science Foundation, Weizmann UK, Weizmann-Yale, and the Weizmann-Caltech grants.
Group:Astronomy Department, Infrared Processing and Analysis Center (IPAC), Zwicky Transient Facility
Funding AgencyGrant Number
Israel Science FoundationUNSPECIFIED
Ministry of Science and Technology (Israel)UNSPECIFIED
Binational Science Foundation (USA-Israel)UNSPECIFIED
Subject Keywords:catalogues, novae, cataclysmic variables
Issue or Number:4
Record Number:CaltechAUTHORS:20210114-143038104
Persistent URL:
Official Citation:Eran O Ofek, Maayane Soumagnac, Guy Nir, Avishay Gal-Yam, Peter Nugent, Frank Masci, Shri R Kulkarni, A catalogue of over 10 million variable source candidates in ZTF Data Release 1, Monthly Notices of the Royal Astronomical Society, Volume 499, Issue 4, December 2020, Pages 5782–5790,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107487
Deposited By: George Porter
Deposited On:14 Jan 2021 23:18
Last Modified:14 Jan 2021 23:18

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