J/MNRAS/511/4285ivo://CDS.VizieR/J/MNRAS/511/4285doi:10.26093/cds/vizier.75114285CDSBattley M.P.Armstrong D.J.Pollacco D.2025-03-03T20:14:29Z2025-02-18T15:10:01ZCDS support team

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

cds-question@unistra.frexoplanetsvariable-starstransient-sourcesstellar-associationseclipsing-binary-starsphotometryvisible-astronomyinfrared-astronomyorbitsclassificationYoung exoplanets and their corresponding host stars are fascinating laboratories for constraining the time-scale of planetary evolution and planet-star interactions. However, because young stars are typically much more active than the older population, in order to discover more young exoplanets, greater knowledge of the wide array of young star variability is needed. Here Kohonen self-organizing maps (SOMs) are used to explore young star variability present in the first year of observations from the Transiting Exoplanet Survey Satellite (TESS), with such knowledge valuable to perform targeted detrending of young stars in the future. This technique was found to be particularly effective at separating the signals of young eclipsing binaries and potential transiting objects from stellar variability, a list of which are provided in this paper. The effect of pre-training the SOMs on known variability classes was tested, but found to be challenging without a significant training set from TESS. SOMs were also found to provide an intuitive and informative overview of leftover systematics in the TESS data, providing an important new way to characterize troublesome systematics in photometric data sets. This paper represents the first stage of the wider YOUNGSTER program, which will use a machine-learning- based approach to classification and targeted detrending of young stars in order to improve the recovery of smaller young exoplanets.2022MNRAS.511.4285Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/511/4285CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/495/4924 : Exoplanets in Southern open clusters (Nardiello+, 2020)J/MNRAS/490/3806 : Exoplanets & variable stars in 47 Tuc fieldJ/AJ/160/239 : Cluster difference imaging photometric survey. II.J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)J/AJ/161/171 : THYME. V. Discovering a new stellar associationJ/AJ/161/65 : THYME. IV. 3 Exoplanets around TOI-451 B (Newton+, 2021)J/AJ/154/224 : Transiting planets in young clusters from K2 (Rizzuto+,2017)J/AJ/157/85 : The CIDA Variability Survey of Orion OB1. II.J/MNRAS/496/1197 : Young exoplanets in TESS sectors 1-5 (Battley+, 2020)J/MNRAS/498/5972 : Variables and dippers in young associations (Nardiello,2020)J/A+A/541/A77 : Kohonen-selected unusual SDSS quasars (Meusinger+, 2012)J/MNRAS/456/2260 : K2 Variability Catalogue II (Armstrong+, 2016)J/A+A/625/L13 : TESS light curve of beta Pictoris (Zieba+, 2019)J/ApJS/203/32 : Machine-learned ASAS Classification Cat. (MACC)J/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky WayJ/A+A/616/A10 : 46 open clusters GaiaDR2 HR diagramsJ/MNRAS/416/3108 : Membership of Sco OB2 moving group (Rizzuto+, 2011)I/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)II/347 : KiDS-ESO-DR3 multi-band source catalog (de Jong+, 2017)J/AJ/147/146 : Spectroscopy of Tuc-Hor candidate members (Kraus+, 2014)J/A+A/531/A92 : Deep all-sky census of the Hyades (Roeser+, 2011)J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. with Gaia DR2J/ApJ/860/43 : BANYAN. XII. New members from Gaia-Tycho data (Gagne+, 2018)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/511/4285https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/511/4285http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/511/4285https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/511/4285https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/511/4285http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/511/4285GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/511/4285/table2 (Candidate eclipsing binary signals found in Year 1 of the CDIPS TESS light-curves)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/511/4285/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/511/4285/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/511/4285/table2?GETtext/xml+votable180.050000true327.5235833-38.50477610.0055555555555555564/2370 2604 5/5189 5218 5224 5382 5414 5417 5443 5510 5514 5541 5550-5552 5714-5715 5723 5749 5892 5906 7200 9305-9307 9309-9310 9329 9333 9337 9340-9342 9415 9420 9424 9427 9430-9431 9436 9446 9467 9474 9476 9478 9484 9510 9602 9646 9656 9797-9798 9801-9806 9809 9811 9820 9825 9828 9838 9843 9849 9924 9940 9942-9944 9946 9949 9967 10026 10114 10298 10361 10387 10389 10391 10394-10395 10402-10403 10420 10422 10424-10425 10427-10428 10430 10439-10440 10442 10458 10538-10539 10557 10591 10594 10609 10612 10616-10617 10620-10621 10753-10754 10758 10760-10762 6/14 93 131 4107 4175 4238 4263 4281 4610 16449 16490 16588 17485 17609 20483-20484 20500 20534 20562 20570 20579 20663 20679 20694-20695 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37012 37018 37024 37053 37058 37060 37062-37063 37077 37081 37086 37106 37108-37109 37111 37115 37122 37126 37145-37147 37151 37153-37154 37169 37174 37176 37178 37180-37181 37183 37185 37189 37192-37194 37196 37202-37203 37205-37206 37211 37214-37215 37217 37234-37235 37245-37247 37251 37257 37261 37264 37267 37270-37271 37274-37275 37277 37279 37297 37299 37320 37322 37327-37329 37331 37336-37338 37340-37341 37343-37344 37347 37352 37354-37357 37359 37373-37375 37434 37436 37447 37451-37452 37461 37467 37470 37472 37476 37478 37486 37496 37500 37519-37520 37523 37530 37536 37540 37569 37575 37581-37583 37587 37589 37592-37594 37596 37598 37604-37605 37607 37610 37616-37617 37627 37631 37654 37657-37659 37670 37678-37679 37684-37685 37688 37690-37691 37693-37694 37702 37705 37707 37712-37713 37715 37717-37719 37731 37733 37737 37741 37743 37748 37750-37751 37753-37754 37756 37759 37765 37767 37771 37781 37788 37790-37791 37800 37805 37812 37815-37818 37821 37823 37827 37829 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41438-41439 41441 41443 41451-41453 41455 41457 41460 41462 41465-41468 41470 41472 41477 41493 41498 41501-41502 41506 41510 41512 41516 41522 41524 41527 41534 41538 41540 41543 41545 41554-41555 41560-41562 41569-41572 41574-41575 41586 41589 41593-41595 41597-41599 41605 41607 41616 41619-41621 41623-41624 41626-41629 41636 41645-41649 41652-41653 41655 41658 41684 41687 41692-41694 41705-41707 41716 41718 41725-41726 41728 41733 41737-41740 41742 41744 41746-41748 41750-41751 41753 41765-41767 41775 41779-41780 41786 41788-41789 41791-41793 41795-41797 41799-41801 41806-41807 41809-41810 41813-41814 41816-41817 41819 41821-41824 41828-41829 41836-41837 41841 41846 41849-41850 41856 41858-41859 41862 41867 41869 41872 41874 41877-41878 41880 41885 41889 41893-41894 41901 41904 41909 41911 41919 41922 41928 41939-41940 41943-41944 41948 41963 41965 41976-41977 41986 41993-41998 42002 42007 42017 42020 42023 42026 42029-42032 42035 42042-42043 42046 42056 42059 42071 42075 42080 42083-42084 42091 42094 42096 42101 42103 42107-42108 42114-42116 42118 42124-42125 42128 42132 42134-42135 42137 42143 42147-42150 42161-42166 42169-42174 42176-42177 42182 42185 42187-42189 42191 42195 42197 42202-42203 42205-42209 42214 42216 42218 42220 42225 42227 42245 42255 42263 42265-42267 42270-42272 42274-42275 42277 42280-42281 42284 42287 42291 42296-42297 42303 42306 42309 42319 42333 42337-42338 42346 42349 42351 42353 42360 42368 42374-42375 42380 42383 42387 42390-42391 42394-42396 42398-42399 42401-42402 42405 42415-42417 42420-42422 42425 42428 42430 42435 42442 42446-42447 42452-42453 42456 42458-42460 42462 42472 42488-42490 42492 42495-42496 42498-42501 42504 42506-42507 42509-42510 42514 42516 42520 42536 42540 42542-42543 42548 42553 42555-42556 42564-42565 42575-42576 42581-42584 42586 42590 42592 42601 42610 42620 42630 42659-42660 42664 42672 42683 42693 42696 42708 42713 42719 42749 42752 42754 42768 42781 42791 42798 42804-42806 42816-42817 42820 42825 42827 42835 42844 42846 42880 42896 42906 42911 42924 42931 43009 43011 43021-43025 43027 43029-43031 43036 43038 43052 43054-43055 43058 43061-43062 43064 43066 43073-43074 43076-43077 43083 43086 43088 43098 43114 43117 43136-43138 43140 43142 43144 43147 43149 43155 43162 43172-43173 43182 43185-43186 43188 43191-43192 43197 43206-43207 43222 43226 43228 43232 43239 43242 43257 43268 43277 43279 43300-43301 43312 43318 43358 43362 43406 43431 43441 43444 43452 43458 43461 43468 43475 43480 43523 43525 43529 43536 43556 43568-43569 43576 43608 43626 43630 43654 43668 43760 43781 43843 43911 44064 44083 44090 44093 44158 44163 44169 44209 45158 45213 45238 45253 45292 45331 45355 45579 45600 45687 45707-45708 45712 45735 45750 45754 45802 46111 46300 46791 46942 47036 47107 47109-47110 47131 47141 47147 47153 47162 47171 47201 47226 47240 47273 47280 47283 47286 47290 47299 47311 47327-47328 47331 47358 47538 47550 47617 47621 47623 47632-47633 47635 47645 47648 47651 47654 47659 47667 47671 47699 47704 47707 47726 47745-47748 47757 47759-47760 47764 47768 47771 47775 47780 47783-47784 47786 47791 47793 47795 47798 47801 47805 47819 47822 47828 47835 47843 47849 47855 47858-47859 47861 47864-47865 47869 47932 48001 48010 48032 48414https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/511/4285?format=asciiOpticalInfrareddefaultJ/MNRAS/511/4285/table2Candidate eclipsing binary signals found in Year 1 of the CDIPS TESS light-curvesGaiaDR2Gaia DR2 source identifier number (GaiaDR2ID)meta.id;meta.mainTICTESS identifier number (TICID)meta.idPeriod? Orbiting period of the binary signals (Period)dsrc.orbital;time.perioddoublenullableFlagLight curves with only single eclipses are labelled as Single in the Periodmeta.codecharType[EA/EB] Binary stars types, 8103 EA and 1297 EB candidate systems in our sample (Type)src.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint_RAPosition from I/345/gaia2 Gaia DR2 catalog (right ascension part)degpos.eq.ra;meta.main_DEPosition from I/345/gaia2 Gaia DR2 catalog (declination part)degpos.eq.dec;meta.main