J/AJ/169/59ivo://CDS.VizieR/J/AJ/169/59doi:10.26093/cds/vizier/be-59-1vCDSKamai I.Perets H.B.2026-07-02T11:52:23Z2025-11-19T11:06:20ZCDS support team

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

cds-question@unistra.frmultiple-starsvisible-astronomyphotometryastronomical-modelsWe propose a new framework to predict stellar properties from light curves. We analyze the light-curve data from the Kepler space mission and develop a novel tool for deriving the stellar rotation periods for main-sequence stars. Using this tool, we provide rotation periods for more than 80K stars. Our model, LightPred, is a novel deep-learning model designed to extract stellar rotation periods from light curves. The model utilizes a dual-branch architecture combining long short-term memory and transformer components to capture temporal and global data features. We train LightPred on self-supervised contrastive pretraining and simulated light curves generated using a realistic spot model. Our evaluation demonstrates that LightPred outperforms classical methods like the autocorrelation function in terms of accuracy and average error. We apply LightPred to the Kepler data set, generating the largest catalog to date. Using error analysis based on learned confidence and consistency metric, we were able to filter the predictions and remove stellar types with variability, which is different than spot-induced variability. Our analysis shows strong correlations between error levels and stellar parameters. Additionally, we confirm tidal synchronization in eclipsing binaries with orbital periods shorter than 10 days. Our findings highlight the potential of deep learning in extracting fundamental stellar properties from light curves, opening new avenues for understanding stellar evolution and population demographics.2025AJ....169...59Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/169/59CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/A+A/534/A125 : Variability of A- and F-stars from Kepler (Uytterhoeven+ 2011)J/ApJ/775/L11 : Stellar rotation periods for KOIs (McQuillan+, 2013)J/A+A/557/L10 : Rotation periods of 12000 Kepler stars (Nielsen+, 2013)J/A+A/560/A4 : Rotation periods of active Kepler stars (Reinhold+, 2013)J/A+A/572/A34 : Pulsating solar-like stars in Kepler (Garcia+, 2014)J/A+A/572/A34 : Pulsating solar-like stars in Kepler (Garcia+, 2014)J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014)J/AJ/149/68 : A-F type variable stars from Kepler (Bradley+, 2015)J/ApJ/801/3 : Rotation periods for Q3-Q14 KOIs (Mazeh+, 2015)J/AJ/151/101 : Kepler Mission. VIII. 285 false positives (Abdul-Masih+, 2016)J/AJ/152/158 : Final Kepler transiting planet search (DR25) (Twicken+, 2016)J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)J/AJ/154/250 : Kepler EB classifications and rotation periods (Lurie+, 2017)J/ApJS/229/30 : Revised stell. propert. of Q1-17 Kepler targets (Mathur+, 2017)J/A+A/603/A52 : Activity cycles in 3203 Kepler stars (Reinhold+, 2017)J/AJ/153/66 : Robo-AO Kepler Planetary Candidate Survey. III. (Ziegler+, 2017)J/MNRAS/474/2094 : Inferring probabilistic stellar rot. periods (Angus+, 2018)J/MNRAS/485/2380 : Gaia-derived lum. of Kepler A/F stars (Murphy+, 2019)J/ApJS/244/21 : Surface rotation & activity of Kepler stars. I. (Santos+, 2019)J/ApJ/871/174 : Kepler rapid rotators and Ks-band excesses (Simonian+, 2019)J/AJ/159/280 : Gaia-Kepler stellar properties cat. I. KIC stars (Berger+, 2020)J/ApJ/893/67 : Smoothed amplitudes from Kepler, K2 & TESS phot. (Morris, 2020)J/ApJS/255/17 : Surface rot. & activity for Kepler stars. II. (Santos+, 2021)J/MNRAS/510/3449 : KOI planets and KIC stars from Kepler DR25 (Bashi+, 2022)J/A+A/678/A24 : New rotation periods of 67163 Kepler stars (Reinhold+, 2023)J/A+A/689/A250 : Kepler DR25 cat. transit & detec. prob. (Castro-Gonzale+,2024)http://archive.stsci.edu/doi/resolve/resolve.html?doi=10.17909/T9488N : Keplerhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/169/59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/169/59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/169/59https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/169/59https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/169/59http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/169/59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/169/59/table8 (Final catalog of predicted periods)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/169/59/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/169/59/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/169/59/table8?GETtext/xml+votable180.050000true291.137636.57738110.0055555555555555564/933 935 944-945 5/3646-3647 3683 3689-3694 3729-3731 3739 3760 3765 3784 3789 3792-3793 6/14567 14573 14575 14577-14580 14582 14731 14738 14744 14746-14747 14749-14751 14780 14782 14792 14794-14795 14816-14818 14826-14827 14830-14831 14914-14915 14944 14949 14954-14955 15044-15045 15056-15057 15059 15140-15142 15144 15146 15152-15153 15155 15161 15164 15176-15178 15200 15202 15232-15233https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/169/59?format=asciiOpticaldefaultJ/AJ/169/59/table8Final catalog of predicted periodsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKIC[757450/12984214] Kepler Input Catalog (V/133) identifiermeta.id;meta.mainintPer[1.8/67.3] Predicted perioddtime.periodfloatObsErr[4e-3/1.62] Observational error (1)%stat.error;time.periodfloatConf[0.8/0.97] Model confidence (2)stat.fit.goodnessfloatTotErr[4e-3/1.83] Total error (3)dstat.error;time.periodfloatFlag[1/3]? Additional information on the sample (4)meta.codeintnullableM14Display data from McQuillan+2014 (J/ApJS/211/24)meta.ref.urlintnullableR23Display data from Reinhold+2023 (J/A+A/678/A24)meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Kepler Input Catalog (V/133) (right ascension part)degpos.eq.ra;meta.mainindexed_DEPositions from Kepler Input Catalog (V/133) (declination part)degpos.eq.dec;meta.mainindexed