J/MNRAS/498/5972ivo://CDS.VizieR/J/MNRAS/498/5972doi:10.26093/cds/vizier.74985972CDSNardiello D.2024-08-21T20:16:06Z2020-10-26T12:34:36ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsphotometryvisible-astronomyinfrared-photometryYoung associations in star-forming regions are stellar systems that allow us to understand the mechanisms that characterize the stars in their early life and what happens around them. In particular, the analysis of the discs and of the exoplanets around young stars allows us to know the key processes that prevail in their evolution and understand the properties of the exoplanets orbiting older stars. The Transiting Exoplanet Survey Satellite mission is giving us the opportunity to extract and analyse the light curves of association members with high accuracy, but the crowding that affects these regions makes difficult the light curve extraction. In the PATHOS project, cutting-edge tools are used to extract high-precision light curves and identify variable stars and transiting exoplanets in open clusters and associations. In this work, I analysed the light curves of stars in five young (<10Myr) associations, searching for variables and candidate exoplanets. Using the rotational periods of the association members, I constrained the ages of the five stellar systems (~2-10Myr). I searched for dippers, and I investigated the properties of the dust that forms the circumstellar discs. Finally, I searched for transiting signals, finding six strong candidate exoplanets. No candidates with radius Rp<0.9R_J_ have been detected, in agreement with the expectations. The frequency of giant planets resulted to be ~2-3 per cent, higher than that expected for field stars (<1 per cent); the low statistic makes this conclusion not strong, and new investigations on young objects are mandatory to confirm this result.2020MNRAS.498.5972Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/498/5972CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/MNRAS/490/3806 : Exoplanets & variable stars in 47 Tuc (Nardiello+, 2019)J/MNRAS/495/4924 : Exoplanets in Southern open clusters (Nardiello+, 2020)https://archive.stsci.edu/hlsp/pathos : PATHOS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/498/5972https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/498/5972http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/498/5972https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/498/5972https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/498/5972http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/498/5972GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/498/5972/var (List of identified variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/498/5972/var?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/498/5972/var?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/498/5972/var?GETtext/xml+votable180.050000true219.66179889-26.170483060.005555555555555556Cone search capability for table J/MNRAS/498/5972/dippers (List of identified dippers)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/498/5972/dippers?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/498/5972/dippers?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/498/5972/dippers?GETtext/xml+votable180.050000true244.80843889-37.791191940.0055555555555555565/9239 9282 9795-9796 9798 9801-9806 9824-9826 9828 10283 10652 10699 10703 10714 11026 11955-11956 11961 11963 6/28690 28701 28739-28740 28749 36953 37122-37123 37136 37818 39031 39037 39039 39125 39173-39175 39179 39190 39196 39198-39201 39203 39228-39230 39264 39266 39308-39310 41123 41126-41127 41130 41454 41476-41477 41484 41798 41822 41832 41869 41918 42042 42112 42117 42121 42125 42170 42174 42209 42228 42237 42239 42270 42274 42276 42292 42380 42410 42413 42415 42419 42422-42426 42428 42430 42471 42473-42474 42492 42494 42501 42561 42566 42571-42572 42574 42579 42583 42585-42588 42590 42595 42597-42599 42604-42605 42612 42614-42617 42619 42622 42627 42634 42665 42668 42682-42683 42688 42707-42709 42713-42714 42717 42725 42731 42736-42737 42740 42752 42755-42758 42760 42763 42766 42775 42779 42782 42784 42787 42790 42800 42802-42805 42807-42809 42834 42840 42851-42852 42883 42885 42888 42892-42893 42898-42899 42903-42904 42907-42909 42911-42912 42918 42921 42924-42925 42927 42929-42934 42937-42938 42944-42946 42952 42954 43286 43343 43359 43374 43378 44032-44033 44048-44049 44060 44063 44073 44093 44098 44109-44111 44122 44129 44145 44147 44151-44152 44209 44221 44237-44238 44240 44249 44293 44320 47738-47739 47741-47743 47795 47801 47805 47811 47813-47815 47817-47819 47828 47831-47832 47834 47839 47841 47843 47849 47856 47858 47864 478668.157980699529898e-21 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/498/5972?format=asciiOpticalInfrareddefaultJ/MNRAS/498/5972/varList of identified variablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA_ICRSRight ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainTICTESS Input Catalog IDmeta.id;meta.mainlongGaiaDR2Gaia DR2 Source IDmeta.idPer? Perioddtime.perioddoublenullableGmagGaia DR2 G magnitudemagphot.mag;em.optfloate_GmagError on Gaia DR2 G magnitudemagstat.error;phot.magfloatBPmag? Gaia DR2 G_BP_ magnitudemagphot.mag;em.opt.Bfloatnullablee_BPmag? Error on Gaia DR2 G_BP_ magnitudemagstat.error;phot.magfloatnullableRPmag? Gaia DR2 G_RP_ magnitudemagphot.mag;em.opt.Rfloatnullablee_RPmag? Error on Gaia DR2 G_RP_ magnitudemagstat.error;phot.magfloatnullableTmagTESS T magnitudemagphot.mag;em.optfloate_TmagError on TESS T magnitudemagstat.error;phot.magfloatBmag? B Johnson magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Error on B Johnson magnitudemagstat.error;phot.magfloatnullableVmag? V Johnson magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Error on V Johnson magnitudemagstat.error;phot.magfloatnullableJmag? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Error on 2MASS J magnitudemagstat.error;phot.magfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Error on 2MASS H magnitudemagstat.error;phot.magfloatnullableKmag? 2MASS K magnitudemagphot.mag;em.IR.KfloatnullableW1mag? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag? Error on WISE W1 magnitudemagstat.error;phot.magfloatnullableW2mag? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag? Error on WISE W2 magnitudemagstat.error;phot.magfloatnullableW3mag? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? Error on WISE W3 magnitudemagstat.error;phot.magfloatnullableW4mag? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4magError on WISE W4 magnitudemagstat.error;phot.magfloatE(B-V)Reddeningphot.color.excessfloatPlxParallax from Gaia DR2maspos.parallaxfloatpmRAProper motion along RA from Gaia DR2, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublepmDEProper motion along Dec from Gaia DR2mas/yrpos.pm;pos.eq.decdoubleAssocName of the association that host the star (G1)meta.id.parentchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexede_Kmag? Error on 2MASS K magnitudemagstat.error;phot.magfloatnullableJ/MNRAS/498/5972/dippersList of identified dippersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA_ICRSRight ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainTICTESS Input Catalog IDmeta.id;meta.mainlongGaiaDR2Gaia DR2 Source IDmeta.idAT/Ag? Absorption in T and g bands ratiophys.absorption.gal;arith.ratiodoublenullablee_AT/Ag? Error on AT/Ag valuestat.error;phys.abunddoublenullableGmagGaia DR2 G magnitudemagphot.mag;em.optfloate_GmagError on Gaia DR2 G magnitudemagstat.error;phot.magfloatBPmag? Gaia DR2 G_BP_ magnitudemagphot.mag;em.opt.Bfloatnullablee_BPmag? Error on Gaia DR2 G_BP_ magnitudemagstat.error;phot.magfloatnullableRPmag? Gaia DR2 G_RP_ magnitudemagphot.mag;em.opt.Rfloatnullablee_RPmag? Error on Gaia DR2 G_RP_ magnitudemagstat.error;phot.magfloatnullableTmagTESS T magnitudemagphot.mag;em.optfloate_TmagError on TESS T magnitudemagstat.error;phot.magfloatBmag? B Johnson magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? Error on B Johnson magnitudemagstat.error;phot.magfloatnullableVmag? V Johnson magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Error on V Johnson magnitudemagstat.error;phot.magfloatnullableJmag? 2MASS J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag? Error on 2MASS J magnitudemagstat.error;phot.magfloatnullableHmag? 2MASS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Error on 2MASS H magnitudemagstat.error;phot.magfloatnullableKmag? 2MASS K magnitudemagphot.mag;em.IR.Kfloatnullablee_Kmag? Error on 2MASS K magnitudemagstat.error;phot.magfloatnullableW1mag? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag? Error on WISE W1 magnitudemagstat.error;phot.magfloatnullableW2mag? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag? Error on WISE W2 magnitudemagstat.error;phot.magfloatnullableW3mag? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? Error on WISE W3 magnitudemagstat.error;phot.magfloatnullableW4mag? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4magError on WISE W4 magnitudemagstat.error;phot.magfloatE(B-V)Reddeningphot.color.excessfloatPlxParallax from Gaia DR2maspos.parallaxfloatpmRAProper motion along RA from Gaia DR2, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublepmDEProper motion along Dec from Gaia DR2mas/yrpos.pm;pos.eq.decdoubleAssocName of the association that host the star (G1)meta.id.parentchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexed