J/A+A/703/A32ivo://CDS.VizieR/J/A+A/703/A32CDSFerreira Lopes C.E.Papageorgiou A.Canto Martins B.L.Catelan M.,Hazarika D.Leao I.C.De Medeiros J.R.Lalounta E.Christopoulou P.E.,Fontinele D.O.Gomes R.L.2026-03-02T06:25:50Z2025-10-30T09:21:59ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvariable-starsphotometryvisible-astronomystellar-distanceThe space mission CoRoT (Convection, Rotation, and planetary Transiting) still holds a wealth of high-quality, yet largely unexplored data that can be analyzed in terms of signal-to-noise ratio and continuous time coverage. This work is the first in a series focused on identifying and classifying variable stars observed by CoRoT whose light curve signals have not yet been studied or reported in the main variable star repositories. We employed simulations alongside real-world data to assess the effectiveness of the moving average method in handling instrumental jumps and detecting short-period signals (lasting less than one day) within time series spanning approximately 20 days. To classify the newly identified variable stars, we used the light curves of known variable stars as a training set. A supervised selection method was developed, introducing a novel classifier based on features extracted from the folded light curve using the double period. We identified 9272 variable stars, of which 6249 are not yet listed in the SIMBAD and VSX repositories. From our preliminary classification, we identified various types of variable stars, including 309 {beta} Cephei, 3,105 {delta} Scuti, 599 Algol-type eclipsing binaries, 844 {beta} Lyrae eclipsing binaries, 497 W Ursae Majoris eclipsing binaries, 1443 {eta} Doradus, 63 RR Lyrae, and 32 T Tauri stars. The template-based models created serve as a new classifier for variable stars with well-sampled light curves. This catalog introduces CoRoT variable stars into widely used astronomical repositories. By comparing the properties of the identified variables in the inner and outer regions of the Milky Way, we observed notable differences in several variable star types, likely reflecting metallicity and age gradients. The identification of signals with periods shorter than one day also enables us to propose new approaches for detecting longer-period variability through automated methods, which will be explored in forthcoming papers in this series.2025A&A...703A..32Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/703/A32CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/corot : CoRoT observation log (N2-4.4) (CoRoT 2016)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/703/A32https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/703/A32http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/703/A32https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/703/A32https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/703/A32http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/703/A32GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/703/A32/table1 (Variable stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/703/A32/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/703/A32/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/703/A32/table1?GETtext/xml+votable180.050000true290.61441.5618640.0055555555555555565/5510 5519 5542 5901 5905 5909 7560 7570 7582 7609 7611-7612 7614 7956 6/21375 21460-21461 21463 22029 22034-22035 22046 22058 22065 22067-22068 22070-22071 22075 22120 22122 22144 22146 22163-22165 22167 22172 22174 22205 22207-22208 22210 22248 22250-22251 22254 22265 22267-22268 22270-22271 23571 23573-23574 23577 23579-23580 23582-23583 23601 23612-23613 23616-23617 23633 23808 23810 29557 29559 29934-29935 29946 29951 30122 30230-30231 30236-30237 30239 30276-30277 30279 30288 30292-30293 30295 30301 30304-30305 30334 30414 30417 30420 30422 30433 30443 30460 30462 30464 30466 30472-30473 31812-31813 31815 31830 318331.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/703/A32?format=asciiOpticaldefaultJ/A+A/703/A32/table1Variable starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCoRoTCoRoT identifiermeta.id;meta.mainlongRunCoRoT run code (e.g. IRa01, LRc06)meta.codecharRAICRSRight ascension (ICRS, J2000)degpos.eq.ra;meta.mainDEICRSDeclination (ICRS, J2000)degpos.eq.dec;meta.mainSpTypeSpectral typesrc.spTypecharLumClassLuminosity classsrc.class.luminositycharPerPerioddtime.perioddoubleAmpAmplitudemmagphot.magdoubleClassVariability typemeta.code;src.varcharModelModel/template labelmeta.idcharCRmagCoRoT magnitudemagphot.mag;em.optfloatGmag? Gaia G magnitudemagphot.mag;em.optfloatnullableTmag? TESS T magnitudemagphot.mag;em.optfloatnullableTeff? Effective temperatureKphys.temperature.effectiveintnullablelogg? Surface gravity (log10)log(cm.s**-2)phys.gravityfloatnullableDist? Distancekpcpos.distancefloatnullableCA[ac] Cross-match flag (1)meta.codecharJ/A+A/703/A32/table4Model templatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhaseLight-curve phasetime.phasedoubleMD0001Template value MD0001phot.mag;meta.modelleddoubleMD0002Template value MD0002phot.mag;meta.modelleddoubleMD0003Template value MD0003phot.mag;meta.modelleddoubleMD0004Template value MD0004phot.mag;meta.modelleddoubleMD0005Template value MD0005phot.mag;meta.modelleddoubleMD0006Template value MD0006phot.mag;meta.modelleddoubleMD0007Template value MD0007phot.mag;meta.modelleddoubleMD0008Template value MD0008phot.mag;meta.modelleddoubleMD0009Template value MD0009phot.mag;meta.modelleddoubleMD0010Template value MD0010phot.mag;meta.modelleddoubleMD0011Template value MD0011phot.mag;meta.modelleddoubleMD0012Template value MD0012phot.mag;meta.modelleddoubleMD0013Template value MD0013phot.mag;meta.modelleddoubleMD0014Template value MD0014phot.mag;meta.modelleddoubleMD0015Template value MD0015phot.mag;meta.modelleddoubleMD0016Template value MD0016phot.mag;meta.modelleddoubleMD0017Template value MD0017phot.mag;meta.modelleddoubleMD0018Template value MD0018phot.mag;meta.modelleddoubleMD0019Template value MD0019phot.mag;meta.modelleddoubleMD0020Template value MD0020phot.mag;meta.modelleddoubleMD0021Template value MD0021phot.mag;meta.modelleddoubleMD0022Template value MD0022phot.mag;meta.modelleddoubleMD0023Template value MD0023phot.mag;meta.modelleddoubleMD0024Template value MD0024phot.mag;meta.modelleddoubleMD0025Template value MD0025phot.mag;meta.modelleddoubleMD0026Template value MD0026phot.mag;meta.modelleddoubleMD0027Template value MD0027phot.mag;meta.modelleddoubleMD0028Template value MD0028phot.mag;meta.modelleddoubleMD0029Template value MD0029phot.mag;meta.modelleddoubleMD0030Template value MD0030phot.mag;meta.modelleddoubleMD0031Template value MD0031phot.mag;meta.modelleddoubleMD0032Template value MD0032phot.mag;meta.modelleddoubleMD0033Template value MD0033phot.mag;meta.modelleddoubleMD0034Template value MD0034phot.mag;meta.modelleddoubleMD0035Template value MD0035phot.mag;meta.modelleddoubleMD0036Template value MD0036phot.mag;meta.modelleddoubleMD0037Template value MD0037phot.mag;meta.modelleddoubleMD0038Template value MD0038phot.mag;meta.modelleddoubleMD0039Template value MD0039phot.mag;meta.modelleddoubleMD0040Template value MD0040phot.mag;meta.modelleddoubleMD0041Template value MD0041phot.mag;meta.modelleddoubleMD0042Template value MD0042phot.mag;meta.modelleddoubleMD0043Template value MD0043phot.mag;meta.modelleddoubleMD0044Template value MD0044phot.mag;meta.modelleddoubleMD0045Template value MD0045phot.mag;meta.modelleddoubleMD0046Template value MD0046phot.mag;meta.modelleddoubleMD0047Template value MD0047phot.mag;meta.modelleddoubleMD0048Template value MD0048phot.mag;meta.modelleddoubleMD0049Template value MD0049phot.mag;meta.modelleddoubleMD0050Template value MD0050phot.mag;meta.modelleddoubleMD0051Template value MD0051phot.mag;meta.modelleddoubleMD0052Template value MD0052phot.mag;meta.modelleddoubleMD0053Template value MD0053phot.mag;meta.modelleddoubleMD0054Template value MD0054phot.mag;meta.modelleddoubleMD0055Template value MD0055phot.mag;meta.modelleddoubleMD0056Template value MD0056phot.mag;meta.modelleddoubleMD0057Template value MD0057phot.mag;meta.modelleddoubleMD0058Template value MD0058phot.mag;meta.modelleddoubleMD0059Template value MD0059phot.mag;meta.modelleddoubleMD0060Template value MD0060phot.mag;meta.modelleddoubleMD0061Template value MD0061phot.mag;meta.modelleddoubleMD0062Template value MD0062phot.mag;meta.modelleddoubleMD0063Template value MD0063phot.mag;meta.modelleddoubleMD0064Template value MD0064phot.mag;meta.modelleddoubleMD0065Template value MD0065phot.mag;meta.modelleddoubleMD0066Template value MD0066phot.mag;meta.modelleddoubleMD0067Template value MD0067phot.mag;meta.modelleddoubleMD0068Template value MD0068phot.mag;meta.modelleddoubleMD0069Template value MD0069phot.mag;meta.modelleddoubleMD0070Template value MD0070phot.mag;meta.modelleddoubleMD0071Template value MD0071phot.mag;meta.modelleddoubleMD0072Template value MD0072phot.mag;meta.modelleddoubleMD0073Template value MD0073phot.mag;meta.modelleddoubleMD0074Template value MD0074phot.mag;meta.modelleddoubleMD0075Template value MD0075phot.mag;meta.modelleddoubleMD0076Template value MD0076phot.mag;meta.modelleddoubleMD0077Template value MD0077phot.mag;meta.modelleddoubleMD0078Template value MD0078phot.mag;meta.modelleddoubleMD0079Template value MD0079phot.mag;meta.modelleddoubleMD0080Template value MD0080phot.mag;meta.modelleddoubleMD0081Template value MD0081phot.mag;meta.modelleddoubleMD0082Template value MD0082phot.mag;meta.modelleddoubleMD0083Template value MD0083phot.mag;meta.modelleddoubleMD0084Template value MD0084phot.mag;meta.modelleddoubleMD0085Template value MD0085phot.mag;meta.modelleddoubleMD0086Template value MD0086phot.mag;meta.modelleddoubleMD0087Template value MD0087phot.mag;meta.modelleddoubleMD0088Template value MD0088phot.mag;meta.modelleddoubleMD0089Template value MD0089phot.mag;meta.modelleddoubleMD0090Template value MD0090phot.mag;meta.modelleddoubleMD0091Template value MD0091phot.mag;meta.modelleddoubleMD0092Template value MD0092phot.mag;meta.modelleddoubleMD0093Template value MD0093phot.mag;meta.modelleddoubleMD0094Template value MD0094phot.mag;meta.modelleddoubleMD0095Template value MD0095phot.mag;meta.modelleddoubleMD0096Template value MD0096phot.mag;meta.modelleddoubleMD0097Template value MD0097phot.mag;meta.modelleddoubleMD0098Template value MD0098phot.mag;meta.modelleddoubleMD0099Template value MD0099phot.mag;meta.modelleddoubleMD0100Template value MD0100phot.mag;meta.modelleddoubleMD0101Template value MD0101phot.mag;meta.modelleddoubleMD0102Template value MD0102phot.mag;meta.modelleddouble