The Zwicky Transient Facility Catalog of Periodic Variable Stars

Abstract

The number of known periodic variables has grown rapidly in recent years. Thanks to its large field of view and faint limiting magnitude, the Zwicky Transient Facility (ZTF) offers a unique opportunity to detect variable stars in the northern sky. Here, we exploit ZTF Data Release 2 (DR2) to search for and classify variables down to r ~ 20.6 mag. We classify 781,602 periodic variables into 11 main types using an improved classification method. Comparison with previously published catalogs shows that 621,702 objects (79.5%) are newly discovered or newly classified, including ~700 Cepheids, ~5000 RR Lyrae stars, ~15,000 Delta Scuti variables, ~350,000 eclipsing binaries, ~100,000 long-period variables, and about 150,000 rotational variables. The typical misclassification rate and period accuracy are on the order of 2% and 99%, respectively. 74% of our variables are located at Galactic latitudes, $|b|<10^{\circ }$. This large sample of Cepheids, RR Lyrae, Delta Scuti stars, and contact (EW-type) eclipsing binaries is helpful to investigate the Galaxy's disk structure and evolution with an improved completeness, areal coverage, and age resolution. Specifically, the northern warp and the disk's edge at distances of 15--20 kpc are significantly better covered than previously. Among rotational variables, RS Canum Venaticorum and BY Draconis-type variables can be separated easily. Our knowledge of stellar chromospheric activity would benefit greatly from a statistical analysis of these types of variables.

accepted by ApJS. The full catalog and LCs can be accessed at http://variables.cn:88/ztf/ or doi.org/10.5281/zenodo.3886372

References in corpus (36)

• Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM
• The Zwicky Transient Facility: Data Processing, Products, and Archive
• The Zwicky Transient Facility: Science Objectives
• A distance to the Large Magellanic Cloud that is precise to one per cent
• The Catalina Surveys Periodic Variable Star Catalog
• The Optical to Mid-Infrared Extinction Law Based on the APOGEE, Gaia DR2, Pan-STARRS1, SDSS, APASS, 2MASS and WISE Surveys
• The Zwicky Transient Facility: Surveys and Scheduler
• A possible close supermassive black-hole binary in a quasar with optical periodicity
• Machine Learning for the Zwicky Transient Facility
• An intuitive 3D map of the Galactic warp's precession traced by classical Cepheids
• The VMC Survey. XXV. The 3D structure of the Small Magellanic Cloud from Classical Cepheids
• A catalog of chromospherically active binary stars (third edition)
• The first all-sky view of the Milky Way stellar halo with Gaia+2MASS RR Lyrae
• Luminosity function of contact binaries based on the ASAS survey
• Spectroscopic Comparison of Metal-Rich RRab Stars of the Galactic Field with Their Metal-Poor Counterparts
• A new interpretation of the period-luminosity sequences of long-period variables
• The $>100$ kpc Distant Spur of the Sagittarius Stream and the Outer Virgo Overdensity, as Seen in PS1 RR Lyrae Stars
• The period-luminosity relation for delta Scuti stars using Gaia DR2 parallaxes
• The panchromatic view of the Magellanic Clouds from Classical Cepheids. I. Distance, Reddening and Geometry of the Large Magellanic Cloud disk
• The Period-Luminosity Relation of Red Supergiant Stars in the Small Magellanic Cloud
• Deep CFHT Photometric Survey of the Entire M33 Galaxy I: Catalogue of 36000 Variable Point Sources
• Standard Galactic Field RR Lyrae II: A Gaia DR2 calibration of the period-Wesenheit-metallicity relation
• Red Supergiant Stars in the Large Magellanic Cloud: I. The Period-Luminosity Relation
• Large Magellanic Cloud Near-Infrared Synoptic Survey. V. Period-Luminosity Relations of Miras
• The Near-infrared Optimal Distances Method Applied to Galactic Classical Cepheids Tightly Constrains Mid-infrared Period--Luminosity Relations
• Analysis of the physical nature of 22 New VVV Survey Globular Cluster candidates in the Milky Way Bulge
• The period-luminosity relation of red supergiants with Gaia DR2
• The period-luminosity and period-radius relations of Type II and anomalous Cepheids
• Galactic Bulge Population II Cepheids in the VVV Survey: Period-Luminosity Relations and a Distance to the Galactic Center
• The Period-Luminosity Relations of Red Supergiants in M33 and M31
• Contact Binaries as Viable Distance Indicators: New, Competitive (V)JHKs Period-Luminosity Relations
• Identification of RR Lyrae stars in multiband, sparsely-sampled data from the Dark Energy Survey using template fitting and Random Forest classification
• Physical parameter study of eight W Ursae Majoris-type contact binaries in NGC 188
• $12660$ spotted stars toward the OGLE Galactic bulge fields
• Case AD, AR, and AS binary evolution and their possible connections with W UMa binaries
• Metal-Rich RRc stars in the Carnegie RR Lyrae Survey

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