J/AJ/162/197ivo://CDS.VizieR/J/AJ/162/197doi:10.26093/cds/vizier.51620197CDSBouma L.G.Curtis J.L.Hartman J.D.Winn J.N.Bakos G.A.2023-07-27T07:13:10Z2022-01-24T07:26:00ZCDS support team

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

cds-question@unistra.fropen-star-clustersstellar-agesvisible-astronomytrigonometric-parallaxnarrow-band-photometryproper-motionsradial-velocityRecent analyses of the Gaia data have identified diffuse stellar populations surrounding nearby open clusters. It is important to verify that these "halos," "tails," and "strings" are of similar ages and compositions as stars in the denser part of the cluster. We present an analysis of NGC2516 (~150Myr), which has a classical tidal radius of 10pc and an apparent halo of stars spanning 500pc (20{deg} on-sky). Combining photometry from Gaia, rotation periods from TESS, and lithium measurements from Gaia-ESO and GALAH, we find that the halo of NGC2516 is the same age as the cluster's core. Two-thirds of kinematically selected halo members out to 250pc from the cluster center have rotation periods consistent with a gyrochronological age of 150Myr. A comparison sample of field stars shows no such trend. The lithium abundances of stars in the halo are higher than in the field and correlated with the stellar rotation rate and binarity fraction, as has been noted in other young open clusters. Broadly speaking, this work supports a new paradigm wherein the halos of open clusters are often more populous than their cores. We highlight implications for spectroscopic survey targeting, open cluster dispersal, and planet searches around young stars.2021AJ....162..197Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/197CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)J/A+A/556/A15 : Effective temperature scale of M dwarfs (Rajpurohit+, 2013)J/A+A/558/A53 : Milky Way global survey star clusters. II. (Kharchenko+, 2013)J/ApJ/779/188 : Spectra of nearby late K and M Kepler stars (Mann+, 2013)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/ApJ/809/77 : Transiting Exoplanet Survey Satellite (TESS) (Sullivan+, 2015)J/AJ/152/113 : Pleiades members K2 light curves. I. Periods (Rebull+, 2016)J/AJ/152/115 : Pleiades members with K2 light curves. III. (Stauffer+, 2016)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/AJ/153/101 : Pleiades members stellar properties (Somers+, 2017)J/AJ/153/257 : Comoving stars in Gaia DR1 (Oh+, 2017)J/AJ/155/196 : Analysis of K2 LCs for members USco & {rho}Oph (Rebull+, 2018)J/ApJ/842/83 : Praesepe memb rotational periods from K2 LCs (Douglas+, 2017)J/A+A/612/A99 : Gaia-ESO Survey in 7 open star cluster fields (Randich+, 2018)J/A+A/613/A63 : Lithium content for 148 Pleiades stars (Bouvier+, 2018)J/A+A/618/A93 : Gaia DR2 open clusters in the Milky Way (Cantat-Gaudin+, 2018)J/A+A/619/A106 : 3D shape of Orion A from Gaia DR2 (Grossschedl+, 2018)J/A+A/620/A172 : Solar neighbourhood young stars 3D mapping (Zari+, 2018)J/AJ/156/18 : APOGEE DR14:Binary comp of evolved stars (Price-Whelan+, 2018)J/AJ/156/84 : APOGEE-2 survey of Orion Complex. II. (Kounkel+, 2018)J/ApJ/855/115 : Lithium abundances of KOIs from CKS spectra (Berger+, 2018)J/ApJ/860/43 : BANYAN. XII. New members from Gaia-Tycho data (Gagne+, 2018)J/ApJ/862/138 : BANYAN. XIII. Nearby young assoc. with Gaia DR2 (Gagne+, 2018)J/MNRAS/475/1609 : RV variability in NGC 2516 and NGC 2422 (Bailey+, 2018)J/A+A/621/L2 : Hyades tidal tails revealed by Gaia DR2 (Roeser+, 2019)J/A+A/621/L3 : Hyades tidal tails with Gaia DR2 (Meingast+, 2019)J/A+A/622/L13 : Stellar stream in Gaia DR2 discovery (Meingast+, 2019)J/A+A/624/L11 : Coma Berenices neighbor moving group (Fuernkranz+, 2019)J/A+A/626/A17 : Young population in Vela-Puppis region (Cantat-Gaudin+, 2019)J/AJ/158/77 : Candidates & members of Pisces-Eridanus stream (Curtis+, 2019)J/AJ/158/122 : Local structure & star formation history MW (Kounkel+, 2019)J/ApJ/871/174 : Kepler rapid rotators and Ks-band excesses (Simonian+, 2019)J/ApJ/877/12 : Coma Ber & a Neighbor Stellar Group tidal tails (Tang+, 2019)J/ApJ/879/49 : Rotation periods 171 Gaia members of NGC6811 (Curtis+, 2019)J/ApJ/879/100 : K2 rotation periods Hyades & Praesepe members (Douglas+, 2019)J/ApJS/245/13 : CDIPS. I. LCs from TESS sectors 6 and 7 (Bouma+, 2019)J/A+A/634/A34 : Complete line list and solar values (Baratella+, 2020)J/A+A/641/A51 : NGC 2516 membership list (Fritzewski+, 2020)J/AJ/160/239 : Cluster diff imaging photometric survey. II. (Bouma+, 2020)J/AJ/160/279 : Untangling Galaxy. II. Structure within 3kpc (Kounkel+, 2020)J/MNRAS/496/2422 : Abundances 42 Pisces-Eridanus stream stars (Hawkins+, 2020)J/A+A/645/A84 : Coronae of nearby star clusters (Meingast+, 2021)J/A+A/646/A104 : Improving the open cluster census. I. (Hunt+, 2021)J/A+A/647/A137 : 800pc tital tail of Hyades (Jerabkova+, 2021)J/AJ/161/65 : THYME. IV. 3 Exoplanets around TOI-451 B (Newton+, 2021)J/AJ/161/171 : THYME. V. Discovering new stellar associa. (Tofflemire+, 2021)J/MNRAS/506/150 : The GALAH+ Survey DR3 (Buder+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/197https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/197http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/197https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/197https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/197http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/197GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/162/197/table1 (Rotation periods and lithium equivalent widths for 3298 candidate NGC2516 members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/197/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/197/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/197/table1?GETtext/xml+votable180.050000true120.1258205332-60.52266792730.0055555555555555564/2342 2349 2351 5/9274 9349 9360 9362-9364 9372 9374-9375 9393 9395 9401 9748-9749 9751 6/32769 32776 32784-32785 32790 32796 32833 32837 32849 32851-32852 36866 36878 36897 36902 36907-36908 36992-36993 36996 37001 37003 37007-37008 37017 37019 37022 37026 37032 37034 37040-37041 37044 37046 37048 37052-37053 37055 37058 37064 37087-37089 37091 37094 37109-37110 37114 37260 37391 37405-37407 37415 37417 37421 37424 37426 37429 37432 37434 37446-37447 37464 37466-37467 37492 37569 37571 37576-37577 37579 37601 37603 37609 37612-37613 37615 37760 37762 37794 37801-37802 38980-38981 38983 39000-39001 39003 39025 39027-39030 39033 39036 39038-39039 39124-39126 39168-39170 39176 391781.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/162/197?format=asciiOpticaldefaultJ/AJ/162/197/table1Rotation periods and lithium equivalent widths for 3298 candidate NGC2516 membersinSetA[0/1] source in Set A? (2)meta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR2Gaia DR2 source identifier (1)meta.id;meta.mainGaiaEDR3Gaia EDR3 source identifiermeta.id.crossTESSDisplay data from TESS catalog (IV/38) within 1'meta.ref.urlintnullablePer[0.05/30]? Lomb-Scargle best perioddtime.period;meta.modelledfloatnullablelspval[0.005/0.95]? Lomb-Scargle periodogram value for best periodstat.fit.paramfloatnullableNequal[0/4]? Number of stars brighter than the target in TESS aperture (3)meta.numberintnullableNclose[1/7]? Number of stars with {Delta}T>1.25 in TESS aperture (3)meta.numberintnullableNfaint[1/7]? Number of stars with {Delta}T>2.5 in TESS aperture (3)meta.numberintnullableRA_ICRS[25.4/147.7] GaiaDR2 Right Ascension (ICRS)degpos.eq.ra;meta.mainDE_ICRS[-88.7/-47.6] GaiaDR2 Declination (ICRS)degpos.eq.dec;meta.mainEpoch[2015.5] Reference epoch for right ascension and declinationmeta.ref;time.epochfloatplx[1.23/4.87] Gaia DR2 parallaxmaspos.parallax.trigfloate_plx[0.01/0.4] Uncertainty for plxmasstat.error;pos.parallaxfloatpmRA[-10.6/25.8] Gaia DR2 Proper motion in Right Ascension ({mu}RA*cos(DE))mas/yrpos.pm;pos.eq.rafloatpmDE[3.61/27.4] Gaia DR2 Proper motion in Declination ({mu}DE)mas/yrpos.pm;pos.eq.decfloatGmag[4.19/19.3] Gaia DR2 G-band magnitudemagphot.mag;em.opt.VfloatBPmag[5.46/20.9]? Gaia DR2 BP magnitudemagphot.mag;em.opt.BfloatnullableRPmag[3.28/18]? Gaia DR2 RP magnitudemagphot.mag;em.opt.RfloatnullableRVel[-19.4/58.2]? Gaia DR2 heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_RVel[0.1/18]? Uncertainty in HRVelkm/sstat.error;spect.dopplerVelocfloatnullableSubcIs star in core (CG18) or halo (KC19+M21) (4)meta.codecharinCG18[0/1] Star in Cantat-Gaudin+, 2018, J/A+A/618/A93meta.codeintinKC19[0/1] Star in Kounkel & Covey, 2019, J/AJ/158/122meta.codeintinM21[0/1] Star in Meingast+, 2021, J/A+A/645/A84meta.codeintBP-RP[-0.27/3.12]? Dereddened Gaia DR2 BP-RP color (5)magphot.color.excessfloatnullablephot-bin[0/1] True if >0.3mag above cluster isochronemeta.codeintastrm-bin[0/1] True if Gaia EDR3 RUWE>1.2meta.codeintRUWE[0.68/15.7] Gaia EDR3 RUWEstat.errorfloatEWLi-Gaia[-95.3/306]? Gaia-ESO Li doublet equivalent width (6)0.1pmspect.line.eqWidthfloatnullableE_EWLi-Gaia[5/105]? upper uncertainty EWLi-GaiaESO0.1pmstat.error;stat.maxfloatnullablee_EWLi-Gaia[5/68]? lower uncertainty EWLi-GaiaESO0.1pmstat.errorfloatnullableEWLi-GALAH[-12/308]? GALAH Li doublet equivalent width (6)0.1pmspect.line.eqWidthfloatnullableE_EWLi-GALAH[5/59]? upper uncertainty EWLi-GALAH0.1pmstat.error;stat.maxfloatnullablee_EWLi-GALAH[5/40]? lower uncertainty EWLi-GALAH0.1pmstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharinSetB[0/1] source in Set B? (2)meta.idintNcdips[0/13] Number of TESS sectors with CDIPS light curvemeta.numberint