J/ApJS/263/14ivo://CDS.VizieR/J/ApJS/263/14doi:10.26093/cds/vizier.22630014CDSCapistrant B.K.Soares-Furtado M.Vanderburg A.Kounkel M.,Rappaport S.A.Omohundro M.Powell B.P.Gagliano R.Jacobs T.,Kostov V.B.Kristiansen M.H.LaCourse D.M.Schmitt A.R.,Schwengeler H.M.Terentev I.A.2023-01-16T09:24:31Z2022-12-23T08:09:57ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryvisible-astronomystellar-radiistellar-agesDipper stars are a classification of young stellar objects that exhibit dimming variability in their light curves, dropping in brightness by 10%-50%, likely induced by occultations due to circumstellar disk material. This variability can be periodic, quasiperiodic, or aperiodic. Dipper stars have been discovered in young stellar associations via ground-based and space-based photometric surveys. We present the detection and characterization of the largest collection of dipper stars to date: 293 dipper stars, including 234 new dipper candidates. We have produced a catalog of these targets, which also includes young stellar variables that exhibit predominately burst-like variability and symmetric variability (equal parts bursting and dipping). The total number of catalog sources is 414. These variable sources were found in a visual survey of TESS light curves, where dip-like variability was observed. We found a typical age among our dipper sources of <5Myr, with the age distribution peaking at ~2Myr, and a tail of the distribution extending to ages older than 20Myr. Regardless of the age, our dipper candidates tend to exhibit infrared excess, which is indicative of the presence of disks. TESS is now observing the ecliptic plane, which is rich in young stellar associations, so we anticipate many more discoveries in the TESS data set. A larger sample of dipper stars would enhance the census statistics of light-curve morphologies and dipper ages.2022ApJS..263...14Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/263/14CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/328 : AllWISE Data Release (Cutri+ 2013)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/349/619 : UBVRI light curves of AA Tau in 1995 (Bouvier+, 1999)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)J/A+A/409/169 : UBVRI light curves of AA Tau in 1999 (Bouvier+, 2003)J/A+A/463/1017 : B and V light curves of AA Tau (Bouvier+, 2007)J/ApJ/704/531 : The coevality of young binary systems (Kraus+, 2009)J/ApJS/191/389 : Photometric monitoring in {sigma} Ori cluster (Cody+, 2010)J/ApJ/733/50 : MIR phot. monitoring of the ONC (Morales-Calderon+, 2011)J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)J/AJ/147/82 : Monitoring of disk-bearing stars in NGC 2264 (Cody+, 2014)J/AJ/147/146 : Spectroscopy of Tuc-Hor candidate members (Kraus+, 2014)J/AJ/150/175 : YSOVAR: infrared photometry in NGC 1333 (Rebull+, 2015)J/ApJ/848/97 : Young stellar variables for K2. I. (Rodriguez+, 2017)J/AJ/156/71 : K2: young disk-bearing stars in Sco & Oph (Cody+, 2018)J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)J/AJ/156/271 : The stellar membership of the Taurus SFR (Luhman, 2018)J/AJ/156/102 : TESS Input Catalog & Candidate Target List (Stassun+, 2018)J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)J/MNRAS/490/3806 : Exoplanets & variable stars in 47 Tuc (Nardiello+, 2019)J/AJ/160/279 : Untangling the Galaxy. II. Within 3kpc (Kounkel+, 2020)J/MNRAS/498/5972 : Variables & dippers in young associations (Nardiello, 2020)J/AJ/159/273 : Taurus members & nonmembers with K2 data (Rebull+, 2020)J/AJ/162/282 : Untangling Galaxy. III. PMS stars (Mcbride+, 2021)J/AJ/162/101 : K2 ugri & H{alpha} phot. in Lagoon Nebula (Venuti+, 2021)J/AJ/163/263 : 323 YSOs properties with ZTF (Hillenbrand+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/263/14https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/263/14http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/263/14https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/263/14https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/263/14http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/263/14GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/263/14/table1 (Variable star catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/263/14/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/263/14/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/263/14/table1?GETtext/xml+votable180.050000true54.504355.17090.0055555555555555565/292 5359 5715 5720 10283 6/857 859-860 881 1083 1109 1113-1114 1124 1136 1159 1231 1240 1242 1247 1538 1546 1561 1590-1591 1683 1935 1939 2780 2990 3004-3005 3007 3051 3057 3071 3163 3464 3640 3790 3795 3838 3965 3986 4018 13808 14220 14328 15452 15634 15642 15664 15667 15695 15720 15768 15798 15803 15840 15851 15855 15952-15953 16129 16131 16133 16188 16191 16193 16197 16208 16255 21214 21285 21351 21403 21428 21432 21435 21482-21483 21643 22588 22622 22634 22727 22800-22802 22804-22805 22808 22812 22834 22842 22846 22848 22851 22854 22856-22857 22859 22872-22873 22875 22884-22885 22892 22895 22897 22907 22992 22998 23389 23477 23557 23560 23562 23637 23639 23641 23695 23704 23706-23707 23715 23717 23719 23727 23730 23736-23737 23739 23845 24195 24490 24719 28739 33094 33791 34539 35079 36956-36958 37012 37076 37128 37237 37306 37492 37496 37518 37863 37868 37886-37887 37917 37964 38347 38382 38850 39119 39132 39171 39179 39194 39203 39210 39214 39216-39217 39228 39252 39254 39257 39260 39264 39277 39299 39369 39389 39713 39746 39932 41127 41130 41475 41522 41604 41613 41664 41748 42185 42239 42434 42470 42486 42555 42588 42595 42598-42599 42605 42611 42614 42621 42652-42653 42706 42708 42713 42737 42740 42749 42784 42791 42882 42885 42912 42929 42954 43057 43067 43103 43122 43150 43182 43223 43272 43293 43400 43415 46125 46949 47739 47818-47819 47827-478281.9867573869263685e-19 4.621782916333392e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/263/14?format=asciiOpticaldefaultJ/ApJS/263/14/table1Variable star catalogSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTIC[2228954/2051692830] TESS Input Cat. identifiermeta.id;meta.mainlongGaia? Gaia DR2 identifiermeta.id.crossnullableRA_ICRSRight Ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainTmag[7.2/16.4] Apparent TESS band magnitudemagphot.mag;em.optfloatGmag[7.48/17.5]? Apparent Gaia DR2 G band magnitudemagphot.mag;em.optfloatnullableBpmag[7.45/20.31]? Apparent Gaia DR2 Blue passband magnitudemagphot.mag;em.opt.BfloatnullableRpmag[7/16]? Apparent Gaia DR2 Red passband magnitudemagphot.mag;em.opt.Rfloatnullable_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.decnullableindexedVmag[7.52/18.51]? Apparent V band Vega magnitudemagphot.mag;em.opt.VfloatnullableTeff[2770/14955]? Effective temperatureKphys.temperature.effectivefloatnullableLum[0.01/88]? LuminositysolLumphys.luminosityfloatnullableRad[0.27/30.41]? Stellar radiussolRadphys.size.radiusfloatnullablelogg[3.5/5]? log surface gravitylog(cm.s**-2)phys.gravityfloatnullableLCPre-generated light curve source (1)meta.bibcharSector[1/24] TESS observation sectormeta.id;obsintM[-0.98/1.25] Flux asymmetry "M" value (M>0.25 are predominately dipping; see Section 3.2)stat.fit.paramfloatQ[0.1/1] Periodicity "Q" value; see Section 3.3stat.fit.paramfloatVarPVariability classification for periodicity: A=Aperiodic, Q=Quasi-Periodic, P=Periodic (2)meta.notecharVarFVariability classification for flux asymmetry: D=Dipping, S=Symmetric, B=Bursting (2)meta.code.class;src.varcharKnownKnown Dipper (3)meta.codecharAgeK21[2/29.1]? Kerr+ 2021ApJ...917...23K stellar ageMyrtime.agefloatnullableAge[0.2/41.6] This work's stellar age (4)Myrtime.agefloat