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

Eran O. Ofek, Maayane Soumagnac, Guy Nir, Avishay Gal-Yam, Peter Nugent, Frank Masci, Shri R. Kulkarni

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)5782-5790
Number of pages9
JournalMonthly Notices of the Royal Astronomical Society
Volume499
Issue number4
DOIs
StatePublished - 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.

Keywords

  • Catalogues
  • Novae, cataclysmic variables

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