The ZTF catalog of periodic variable stars J/ApJS/249/18 ivo://CDS.VizieR/J/ApJS/249/18 doi:10.26093/cds/vizier.22490018 CDS Chen X. Wang S. Deng L. de Grijs R. Yang M. Tian H. 2024-06-07T16:48:53Z 2020-11-09T12:31:10Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr variable-stars photometry visible-astronomy 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~20.6mag. 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, ~15000 {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{deg}. 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 15-20kpc 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. 2020ApJS..249...18C https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/249/18 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to II/351 : VISTA Magellanic Survey (VMC) catalog (Cioni+, 2011) I/345 : Gaia DR2 (Gaia Collaboration, 2018) V/76 : Chromospherically Active Binaries (Strassmeier+ 1993) V/128 : Chromospherically Active Binaries. Third version (Eker+, 2008) J/AJ/119/1901 : ROTSE all-sky surveys for variable stars (Akerlof+, 2000) J/AcA/51/221 : OGLE-II. Cepheids in IC 1613 (Udalski+, 2001) J/AJ/127/861 : RR Lyrae in Draco dSph (Bonanos+, 2004) J/ApJ/629/1055 : Evolution of close binary systems (Yakut+, 2005) J/MNRAS/371/1405 : Variables in M33 (Hartman+, 2006) J/AcA/58/163 : VI light curves of LMC classical Cepheids (Soszynski+, 2008) J/AJ/140/328 : LMC High-amplitude delta Scuti stars (Garg+, 2010) J/AJ/141/166 : HATNet variability survey of K and M dwarfs (Hartman+, 2011) J/ApJ/727/53 : Red supergiant stars in the LMC. I. (Yang+, 2011) J/ApJ/754/35 : Red supergiant stars in the SMC. II. (Yang+, 2012) J/ApJ/765/154 : RR Lyrae stars in the Catalina Sky Survey (Drake+, 2013) J/AJ/146/101 : LINEAR. III. Cat. of periodic variables (Palaversa+, 2013) J/AcA/63/379 : OGLE-III var. stars in Gal. disk area (Pietrukowicz+, 2013) J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014) J/MNRAS/442/2620 : VRI light curve of 5 eclipsing binaries (Zhang+, 2014) J/AJ/152/129 : VR photometry for 914 stars in NGC 188 (Chen+, 2016) J/A+A/591/A145 : VVV Survey outer bulge RRab stars (Gran+, 2016) J/ApJ/832/176 : Classical Cepheids in MCs. I. LMC disk (Inno+, 2016) J/A+A/605/A100 : VVV survey Galactic Bulge Pop. II Cepheids (Bhardwaj+, 2017) J/MNRAS/469/3688 : CSS Periodic Variable Star Catalogue (Drake+, 2017) J/A+A/604/A29 : MC Type II & anomalous Cepheids PL & PR (Groenewegen+, 2017) J/MNRAS/472/808 : YJKs light curves of SMC Classical Cepheids (Ripepi+, 2017) J/ApJ/844/L4 : PS1 RRab stars for tracing Virgo overdensity (Sesar+, 2017) J/AJ/154/149 : LMC NIR synoptic survey. V. NIR phot. of Miras (Yuan+, 2017) J/A+A/619/A51 : Type II Cepheids in the Galactic bulge (Braga+, 2018) J/AJ/155/137 : RRLs in globulars. V.{omega} Cen NIR phot. (Braga+, 2018) J/ApJ/859/140 : Multi-band magnitudes for W UMa EB* candidates (Chen+, 2018) J/ApJS/237/28 : WISE catalog of periodic variable stars (Chen+, 2018) J/AJ/156/241 : Variable stars measured by ATLAS (Heinze+, 2018) J/AJ/156/130 : Cepheids in M31 - PAndromeda Cepheid sample (Kodric+, 2018) J/ApJ/855/43 : Distant RR Lyrae stars discovered with HiTS (Medina+, 2018) J/AJ/155/45 : Metal-rich RRc stars (Sneden+, 2018) J/AcA/68/315 : OGLE Galactic Cepheids (Udalski+, 2018) J/ApJ/852/78 : JHKs, WISE & Spitzer data of Galactic Cepheids (Wang+, 2018) J/A+A/616/A175 : Red supergiant stars in the LMC. II. (Yang+, 2018) J/AJ/156/112 : NIR Mira period-luminosity relations in M33 (Yuan+, 2018) J/ApJ/870/115 : Distance modulus & Fe/H of RRLs in w Cen (Bono+, 2019) J/A+A/622/A60 : Gaia DR2 misclassified RR Lyrae list (Clementini+, 2019) J/A+A/623/A110 : Gaia DR2. Variable stars in CMD (Gaia Collaboration+, 2019) J/AJ/158/105 : IR phot. of field RR Lyrae variable stars (Layden+, 2019) J/A+A/625/A14 : Reclassification of Cepheids in the Gaia DR2 (Ripepi+, 2019) J/other/Sci/365.478 : Milky Way classical Cepheids sample (Skowron+, 2019) J/AJ/158/16 : Identification of RR Lyrae from the DES (Stringer+, 2019) http://irsa.ipac.caltech.edu/Missions/ztf.html : ZTF on IRSA https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/249/18 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/249/18 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/249/18 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/249/18 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/249/18 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/249/18 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/249/18/table2 (ZTF variables catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/249/18/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/249/18/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/249/18/table2? GET text/xml+votable 180.0 50000 true 0.00056 62.10163 0.005555555555555556 Cone search capability for table J/ApJS/249/18/table3 (ZTF suspected variables catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/249/18/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/249/18/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/249/18/table3? 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18513-18514 18520-18521 18523-18524 18526-18529 18531 18533 18535 18537-18541 18543 18545 18548-18549 18551-18553 18555-18558 18568 18570-18571 18582 18588 18590-18591 18596 18598-18599 18604-18606 18629-18631 18636 18638-18640 18642-18644 18646-18647 18656 18658-18661 18663 18688 18690-18691 18699 18704-18705 18707-18710 18712-18713 18715 18721-18722 18724-18725 18727 18764 18766-18767 18777 18779 18785-18790 18796-18798 18800 18802-18803 18808 18810 18813-18815 18829-18834 18840-18841 18843 18848 18850-18851 18861-18863 18892 18894 18896-18897 18899 18905 18907 18909 18911-18912 18914-18916 18918-18919 18930 18932-18934 18937-18939 18973-18975 19017-19019 19029-19034 19040-19042 19073-19075 19205-19206 19297-19299 19465-19467 19469-19470 19473-19475 19480-19481 19483 19493-19497 19501-19502 19517-19519 19528-19529 19531 19536-19537 19539-19540 19542-19543 19548 19550 19552 19557-19559 19562-19564 19566-19567 19573-19574 19580 19582-19583 19585 19587 19617-19619 19637-19639 19661-19662 19665-19667 19677-19679 19720-19721 19723-19725 19727 19744-19746 19760-19761 19763 19773-19776 19778-19780 19782-19783 19792 19794-19795 19805-19807 19813-19815 19840-19842 19877-19879 19884-19885 19887 19904 19906-19907 20053-20055 20224-20226 20813-20815 20817-20819 20833 20835 20844-20845 20847 20944-20945 20947 20955 20973-20975 21099 21102 21133 21139 21142 21147-21148 21166 21168 21173 21177 21180-21182 21187 21189-21190 21207 21211 21218 21228 21230-21231 21233-21235 21271 21277-21279 21293-21295 21316-21317 21319-21322 21328-21330 21356-21358 21360-21362 21396-21397 21399-21400 21405-21407 21568-21570 21572 21574-21575 21578-21580 21582-21583 21585-21587 21592-21593 21595-21597 21600 21602-21603 21605 21614-21615 21618-21619 21624-21625 21627 21629-21631 21713-21715 21824 21827 21836 21839 21852 21854-21856 21858-21859 21861-21863 21872-21873 21875-21876 21878-21879 21886-21887 21968-21970 22000-22002 22004 22006-22007 22533-22534 22539 22549 22557-22558 22561 22563 22567 22569-22571 22573 22578-22580 22584 22586-22589 22591-22592 22594-22595 22600 22602-22603 22611 22616 22618-22621 22623-22626 22641-22643 22657 22659 22661-22662 22668 22671 22680-22682 22688 22690 22692-22694 22696-22697 22699 22701-22705 22707-22710 22716-22717 22719-22721 22723 22728-22729 22731 22752 22754-22755 22758-22762 22773-22775 22784-22786 22852-22854 23040 23043 23052-23053 23057-23058 23060 23062-23066 23070 23072 23074-23075 23081-23085 23092 23094-23095 23104 23106-23108 23114-23115 23121-23123 23129 23131 23136 23139 23145-23147 23177 23179-23180 23182-23183 23185 23187 23189-23192 23194-23195 23200-23201 23208 23210 23212-23213 23215 23240-23242 23272-23273 23275 23300 23302-23303 23433-23435 23461-23463 24895 24915 24919 24922 24930 24934 24940 24945 24953-24957 24959 24975 24977-24981 24983-24984 24986 24994 25001 25004-25006 25009-25011 25013-25014 25025 25027 25029-25030 25032 25035 25037-25039 25053-25058 25061-25066 25068 25070-25072 25074-25076 25078-25079 25151 25169-25170 25174 25176 25181 25183 25185 25187 25192-25193 25198-25199 25204-25206 25208 25210 25212-25214 25231 25233 25235-25236 25238-25239 25241-25243 25245-25246 25251-25253 25258 25261 25264 25266 25268 25270-25274 25278-25279 25281 25283-25284 25286 25292-25294 25296-25298 25300-25301 25303-25305 25307-25310 25312 25315-25317 25319-25320 25322 25331-25332 25335-25338 25343 25348-25350 25353-25358 25373-25375 25377-25378 25382-25386 25393-25398 25404-25406 25420-25422 25425-25427 25437 25439 25441 25443-25444 25446-25448 25450-25452 25454-25455 25476-25477 25479 25508-25510 25524-25526 25528 25531 25541-25544 25546-25547 25556-25557 25559 25568-25569 25571 25580-25581 25583 25588 25590-25591 25600 25602 25607 25611 25623-25624 25626-25627 25636-25637 25640 25642-25644 25646 25649-25652 25655 25660-25661 25665-25666 25688-25689 25691 25697-25700 25702-25706 25708-25709 25720-25721 25723 25733-25734 25736-25738 25752-25753 25755 25765-25767 25776-25778 25781-25782 25784-25786 25816-25818 25828 25830-25831 25868-25869 25871 26120 26122-26123 26141-26142 26150-26151 26165-26168 26170-26171 26221-26223 26261-26266 26625 26627 26631 26634 26637-26638 26640 26642 26644 26647 26649-26650 26656 26660 26663-26664 26666 26669-26671 26673 26675 26677-26678 26680 26682-26683 26685-26686 26688-26690 26693-26698 26700 26702-26704 26707 26710 26717-26718 26720 26722-26724 26727 26730-26731 26734-26736 26739-26742 26745-26747 26753 26756 26758 26760 26762-26765 26767-26769 26771-26772 26774 26778 26785-26788 26790-26792 26794-26795 26797 26800 26803 26806 26808 26810 26812 26814-26818 26825-26828 26830-26833 26835 26840-26841 26847 26849-26850 26857-26862 26870-26871 26880-26881 26883-26886 26889 26891 26896 26898-26899 26913-26916 26918 26920-26922 26927 26930-26931 26936-26937 26939-26940 26942-26945 26947-26948 26950-26951 26953-26955 26960-26962 26969-26971 26985-26986 27009 27011-27013 27015 27022 27024 27026 27028-27030 27032-27034 27037-27040 27042-27043 27045-27047 27060 27062-27063 27068 27070-27071 27073-27075 27089-27091 27104-27105 27109-27111 27113-27117 27119 27125-27127 27129-27131 27138-27139 27142-27143 27148-27150 27154-27155 27158 27166-27167 27181-27183 27185-27187 27189-27191 27194-27195 27208-27209 27212-27214 27216-27217 27219 27224 27226 27229-27230 27238-27239 27243-27246 27252-27253 27255-27257 27259-27261 27264-27266 27270 27272 27277-27278 27300-27301 27303 27305-27307 27320-27322 27325-27327 27329-27330 27334-27337 27339 27344-27346 27348 27350-27351 27360 27362-27363 27366-27367 27372-27373 27375-27378 27380 27382 27385-27387 27401-27405 27407 27417 27419 27424-27425 27427 27431 27434-27437 27439-27442 27444 27446-27447 27449 27451 27453-27454 27460 27462 27465-27466 27468-27470 27476-27477 27479-27481 27483 27485-27489 27491-27493 27495-27496 27499 27501 27504-27505 27507-27508 27510-27511 27524-27526 27536 27538-27539 27544-27545 27547 27565-27566 27568 27570-27571 27576-27577 27580 27582-27583 27585 27587 27592-27594 27596-27597 27599-27602 27608-27609 27611-27613 27615-27616 27619 27621-27623 27625-27630 27640 27642-27643 27684-27686 27692-27694 27812-27814 27895-27896 27899-27901 27903 27961-27963 28008-28009 28011-28012 28014-28015 28040-28041 28043 28061-28063 28076-28077 28079 28081-28083 28101-28103 28164-28165 28167-28170 28185-28187 28201-28203 28208 28210-28211 28213-28215 28217-28219 28248-28250 28260-28262 28269-28271 28288-28290 28299-28302 28310-28311 28316-28317 28320-28321 28323 28329 28331 28352-28353 28355 28416 28418-28419 28925 28927 28989-28991 29005-29007 29009-29011 29025-29027 29030 29069-29071 29073-29075 29089-29091 29104-29105 29107 29133-29135 29245-29247 29265-29267 29272-29273 29275 29290-29291 29294 29300-29301 29303 29306 29325-29327 29345-29347 29437-29439 29480-29481 29483 29615 29700 29702-29703 30736-30738 35837-35839 36093 36158 36173 36178 36186 36190 36197-36200 36207 36211-36212 36220 36222 36241 36244-36246 36262 36264 36271 36276 36280 36289 36303 36308 36311 36314 36317-36319 36321-36322 36330 36332 36334-36335 36340-36341 36345 36347 36349-36350 36413-36414 36431 36441 36473 36475-36476 36478 36494 36497 36500-36501 36506 36510-36511 36518-36522 36527 36531 36537-36539 36544 36552 36561 36564 36567 36571 36577-36578 36586 36590 36594 36596-36598 36600-36601 36613 36619 36624 36629 36634 36636-36638 36643 36650 36652 36654-36656 36658-36660 36662 36664 36667 36675-36676 36680 36682 36688 36691-36692 36694-36696 36699-36700 36704 36706-36709 36711 36715 36719-36720 36722 36724 36726-36729 36731-36732 36734 36737-36740 36742-36746 36748-36749 36752-36753 36755 36766-36768 36770-36773 36775-36776 36778-36779 36781-36782 36784 36787 36794-36795 36800-36801 36804 36806-36807 36814-36815 36817-36821 36823 36826 36828 36830-36833 36838 36844 36846 36848-36850 36855-36857 36859 39933-39935 40189 40255 40270-40271 40276 40278 40280 40282 40286 40289-40293 40295-40296 40298-40299 40306-40307 40312 40314 40317-40318 40333 40339-40340 40355 40357-40358 40366 40373 40375-40377 40379-40380 40382-40383 40385-40388 40396-40398 40404 40406-40407 40412 40414-40415 40419-40421 40423-40426 40432 40434-40435 40441-40443 40445-40447 40534 40537 40542-40543 40545 40547-40549 40553 40555 40560-40561 40565 40575 40589-40591 40601-40602 40604-40606 40609-40611 40630-40631 40646-40647 40651 40655-40656 40658-40659 40661-40662 40665 40667 40669-40671 40674-40675 40680 40682-40683 40685 40700 40702-40704 40711-40713 40715 40717 40722 40724-40725 40727 40729-40731 40738 40742-40743 40745-40747 40753-40754 40764-40766 40768-40770 40775-40776 40778-40779 40782 40784-40785 40790-40791 40794-40795 40797-40800 40802-40804 40806-40807 40816-40817 40825-40827 40840-40842 40852 40854-40855 40860 40862-40863 40876-40877 40879 40901 40903 40905-40907 40913-40916 40918-40919 40950-40951 43005-43007 44031 44285 44287 44349-44351 44365-44367 44369-44371 44385-44387 44429-44431 44434-44437 44439 44449 44451 44456 44458-44459 44461-44463 44489-44494 44520-44522 44607 44621 44626-44627 44632 44634-44635 44641-44644 44646-44648 44652-44653 44655-44658 44660-44662 44687 44689-44691 44693-44694 44698 44709 44711 44713 44717 44720 44723-44724 44731-44732 44737 44740 44743-44744 44746 44749 44751-44752 44754 44756 44758 44760-44761 44771 44774-44775 44777 44782-44783 44792 44794-44796 44798-44801 44803-44805 44807-44808 44810-44811 44816-44817 44832-44834 44840 44843 44849-44851 44900-44901 44903-44905 44907 44929-44932 44934-44935 44945-44947 44964 44966-44967 44992 44994-44995 45017-45019 45028-45029 45031 45040 45042-45043 48126-48127 48381-48383 48445 48447 48475 48481 48488 48498 48504 48506 48508 48525-48526 48529-48531 48533-48538 48542-48543 48545-48547 48553-48555 48561-48562 48564 48567 48569-48571 48573-48574 48580 48582-48585 48587 48590-48593 48597-48598 48600 48602-48606 48608 48610-48611 48616-48617 48619 48625-48627 48701-48703 48717-48719 48721 48723 48725-48727 48737 48739 48782-48783 48785-48787 48802-48803 48817-48819 48900-48901 48904 48906-48907 48913-48915 48948-48949 48951 48972-48974 49104-49105 49107 2.7590953690762556e-19 4.77706485671356e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/249/18?format=ascii Optical default J/ApJS/249/18/table2 ZTF variables catalog recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int ID ZTF variables catalog identifier meta.id;meta.main char indexed Seq [1/781604] Internal source identifier meta.id int RAJ2000 Right Ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main indexed Per [0.03/973.5] Period d time.period double Simbad Simbad column added by the CDS meta.ref.url char Type Variable type (1) src.class char R21 [0/71] Amplitude ratio (a_2_/a_1_) phot.mag;arith.ratio float phi21 [3.14/9.5] Phase difference ({phi}_2_-2*{phi}_1_) time;arith.diff float T0 HJD of minimum; HJD-2400000.5 d time.epoch double indexed gmag [11.7/22]? Mean Palomar/ZTF g band magnitude mag phot.mag;em.opt.B float nullable rmag [11.2/21.4]? Mean Palomar/ZTF r band magnitude mag phot.mag;em.opt.R float nullable Per-g [0.02/18340]? Period determined in g band d time.period double nullable Per-r [0.02/13242]? Period determined in r band d time.period double nullable Ng [0/2084] Number of detections in g band meta.number int Nr [0/3300] Number of detections in r band meta.number int R21-g [0/96] Ratio of a_2_/a_1_ in g band phot.mag;arith.ratio float R21-r [0/71] Ratio of a_2_/a_1_ in r band phot.mag;arith.ratio float phi21-g [0/9.5] The {phi}_2_-2*{phi}_1_ in g band time;arith.diff float phi21-r [0/9.5] The {phi}_2_-2*{phi}_1_ in r band time;arith.diff float R2-g [-0.96/1] R-square in g band stat.fit.param float R2-r [-0.05/1] R-square in r band stat.fit.param float gAmp [0.006/8.11]? Amplitude in g band mag phot.mag;arith.ratio float nullable rAmp [0.01/7]? Amplitude in r band mag phot.mag;arith.ratio float nullable log(FAP-g) [-226.2/0] False alarm probability in g band stat.fit.goodness double log(FAP-r) [-223.2/0] False alarm probability in r band stat.fit.goodness double Dmin-g [0/2.5] Minimum difference in g band mag phot.mag;arith.diff float Dmin-r [0/2.6] Minimum difference in r band mag phot.mag;arith.diff float
J/ApJS/249/18/table3 ZTF suspected variables catalog recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int ID ZTF variables catalog identifier meta.id;meta.main char indexed RAJ2000 Right Ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main indexed gmag [11.1/22.1]? Mean Palomar/ZTF g band magnitude mag phot.mag;em.opt.B float nullable rmag [11.2/21.6]? Mean Palomar/ZTF r band magnitude mag phot.mag;em.opt.R float nullable Per-g [0.02/969]? Period determined in g band d time.period double nullable Per-r [0.02/956]? Period determined in r band d time.period double nullable gAmp [0.01/6]? Amplitude in g band mag phot.mag;arith.ratio float nullable rAmp [0.008/5.7]? Amplitude in r band mag phot.mag;arith.ratio float nullable Ng [0/1220] Number of detections in g band meta.number int Nr [0/1668] Number of detections in r band meta.number int log(FAP-g) [-124.4/0] False alarm probability in g band stat.fit.goodness double log(FAP-r) [-115.5/0] False alarm probability in r band stat.fit.goodness double