J/MNRAS/490/3806ivo://CDS.VizieR/J/MNRAS/490/3806doi:10.26093/cds/vizier.74903806CDSNardiello D.Borsato L.Piotto G.Colombo L.S.Manthopoulou E.E.,Bedin L.R.Granata V.Lacedelli G.Libralato M.Malavolta L.,Montalto M.Nascimbeni V.2024-08-20T20:13:57Z2020-10-26T12:17:59ZCDS support team

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

cds-question@unistra.frglobular-star-clustersvariable-starsphotometryvisible-astronomyThe TESS mission will survey ~85 per cent of the sky, giving us the opportunity of extracting high-precision light curves of millions of stars, including stellar cluster members. In this work, we present our project 'A PSF-based Approach to TESS High quality data Of Stellar clusters' (PATHOS), aimed at searching and characterize candidate exoplanets and variable stars in stellar clusters using our innovative method for the extraction of high-precision light curves of stars located in crowded environments. Our technique of light-curve extraction involves the use of empirical point spread functions (PSFs), an input catalogue and neighbour-subtraction. The PSF-based approach allows us to minimize the dilution effects in crowded environments and to extract high-precision photometry for stars in the faint regime (G>13). For this pilot project, we extracted, corrected, and analysed the light curves of 16641 stars located in a dense region centred on the globular cluster 47 Tuc. We were able to reach the TESS magnitude T~16.5 with a photometric precision of ~1 per cent on the 6.5-h time-scale; in the bright regime we were able to detect transits with depth of ~34 parts per million. We searched for variables and candidate transiting exoplanets. Our pipeline detected one planetary candidate orbiting a main-sequence star in the Galactic field. We analysed the period-luminosity distribution for red-giant stars of 47 Tuc and the eclipsing binaries in the field. Light curves are uploaded on the Mikulski Archive for Space Telescopes under the project PATHOS.2019MNRAS.490.3806Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/490/3806CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/MNRAS/495/4924 : Exoplanets in Southern open cluster (Nardiello+, 2020)J/MNRAS/498/5972 : Variables & dippers in young associations (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/490/3806https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/490/3806http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/490/3806https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/490/3806https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/490/3806http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/490/3806GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/490/3806/table2 (List of eclipsing binaries)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/3806/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/3806/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/3806/table2?GETtext/xml+votable180.050000true6.537000594-72.117086890.005555555555555556Cone search capability for table J/MNRAS/490/3806/table3 (List of the analysed RGB stars in 47 Tuc)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/3806/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/3806/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/3806/table3?GETtext/xml+votable180.050000true6.42920058-72.068215140.005555555555555556Cone search capability for table J/MNRAS/490/3806/table4 (List of the analysed AGB stars in 47 Tuc)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/3806/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/3806/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/3806/table4?GETtext/xml+votable180.050000true6.01688895-71.940611710.0055555555555555566/33313-33315 33318 33321-33324 33326 33408-334091.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/490/3806?format=asciiOpticaldefaultJ/MNRAS/490/3806/table2List of eclipsing binariesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEBEB sequential numbermeta.idintRA_ICRSGaia DR2 Right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSGaia DR2 Declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainBPmagGaia DR2 G_BP magnitudemagphot.mag;em.opt.BfloatRPmagGaia DR2 G_RP magnitudemagphot.mag;em.opt.RfloatpmRAProper motion along RA from Gaia DR2, pmRA*cosDEmas/yrpos.pm;pos.eq.rafloatpmDEProper motion along Dec from Gaia DR2mas/yrpos.pm;pos.eq.decfloatPerPerioddtime.perioddoubleNoteNotesmeta.notecharRefReferences (1)meta.refchar_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.decnullableindexedSimbadSimbad column added by the CDSmeta.ref.urlcharGaiaDR2Gaia DR2 Source IDmeta.id;meta.mainTmagTESS T magnitudemagphot.mag;em.optfloatGmagGaia DR2 G magnitudemagphot.mag;em.optfloatJ/MNRAS/490/3806/table3List of the analysed RGB stars in 47 TucrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[RGB AGB] Typesrc.classcharRA_ICRSGaia DR2 Right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSGaia DR2 Declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainGaiaDR2Gaia DR2 Source IDmeta.id;meta.mainTmagTESS T magnitudemagphot.mag;em.optfloatGmagGaia DR2 G magnitudemagphot.mag;em.optfloatBPmagGaia DR2 G_BP magnitudemagphot.mag;em.opt.BfloatRPmagGaia DR2 G_RP magnitudemagphot.mag;em.opt.RfloatPerPerioddtime.periodfloate_Per? Period errordstat.errorfloatnullable_RA.icrsRight ascension (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedJ/MNRAS/490/3806/table4List of the analysed AGB stars in 47 Tuc_RA.icrsRight ascension (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.5 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[RGB AGB] Typesrc.classcharRA_ICRSGaia DR2 Right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSGaia DR2 Declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainGaiaDR2Gaia DR2 Source IDmeta.id;meta.mainTmagTESS T magnitudemagphot.mag;em.optfloatGmagGaia DR2 G magnitudemagphot.mag;em.optfloatBPmagGaia DR2 G_BP magnitudemagphot.mag;em.opt.BfloatRPmagGaia DR2 G_RP magnitudemagphot.mag;em.opt.RfloatPerPerioddtime.periodfloate_Per? Period errordstat.errorfloatnullable