J/AJ/143/80ivo://CDS.VizieR/J/AJ/143/80doi:10.26093/cds/vizier.51430080CDSSchlieder J.E.Lepine S.Simon M.2024-06-27T20:11:40Z2013-05-22T06:59:14ZCDS support team

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

cds-question@unistra.frstellar-associationspre-main-sequence-starsinfrared-photometryproper-motionsradial-velocityAs part of our continuing effort to identify new, low-mass members of nearby, young moving groups (NYMGs), we present a list of young, low-mass candidates in the northern hemisphere. We used our proven proper-motion selection procedure and ROSAT X-ray and GALEX-UV activity indicators to identify 204 young stars as candidate members of the {beta} Pictoris and AB Doradus NYMGs. Definitive membership assignment of a given candidate will require a measurement of its radial velocity and distance. We present a simple system of indices to characterize the young candidates and help prioritize follow-up observations. New group members identified in this candidate list will be high priority targets for (1) exoplanet direct imaging searches, (2) the study of post-T-Tauri astrophysics, (3) understanding recent local star formation, and (4) the study of local galactic kinematics. Information available now allows us to identify eight likely new members in the list. Two of these, a late-K and an early-M dwarf, we find to be likely members of the {beta} Pic group. The other six stars are likely members of the AB Dor moving group. These include an M dwarf triple system, and three very cool objects that may be young brown dwarfs, making them the lowest-mass, isolated objects proposed in the AB Dor moving group to date.2012AJ....143...80Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/80CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/298 : LSPM-North Catalog (Lepine+ 2005)I/284 : The USNO-B1.0 Catalog (Monet+ 2003)I/259 : The Tycho-2 Catalogue (Hog+ 2000)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)J/AJ/140/119 : {beta}Pic and AB Dor moving groups members (Schlieder+, 2010)J/A+A/460/695 : Search for Associations Containing Young stars (Torres+, 2006)J/other/ARA+A/42.685 : Young stars near the Sun (Zuckerman+, 2004)J/AJ/126/2421 : 2MASS-Selected sample of ultracool dwarfs (Cruz+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/80https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/80http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/80https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/80https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/80http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/80GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/80/table2 (Northern Probable Young Candidate (PYC) list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/80/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/80/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/80/table2?GETtext/xml+votable180.050000true0.6455680634.381161110.0055555555555555566/284 310 419 431 518 631 790 850 910 942 965 1067 1134 1201 1216 1284 1477 1619 1738 1750 1782 1808 1909 1911 2022 2248 2306 2578 2581 2587 2660 2671 2942 2972 3086 3204 3331 3432 3503 3600 3688 3750 3952 3967 4258 4282 4286 4468 4538 4887 4976 5078 5224 5430 5491 5657 5666 5677 5758 5854 5936 5990 6037 6060 6305 6384 6427 6490 6495 6530 6600 6711 6809 6850 6888 6907 6930 7000 7022 7035 7092 7146 7175 7189 7373 7481 7577 7656 7760 7806 7808-7809 7915 7940 7954 8001 8103 8170 8545 8568 8723 9834 9862 10303 10771 10788 11015 11081 11170 11365 11727 11949 11973 11998 12111 12118 12129 12210 12260 12324 12497 12738 12759 12886 13074 13157 13234 13536 13611 13649 13686 13800 13813 14116 14183 14322 14458 14680 15651 16034 16150 17822 17903 18136 18324 18361 19134 19144 19242 19312 19367 19399 19536 19748 19782 19812 19877 19955 20158 20227 20361 20381 20429 20453 21926 21972 21975 21980 22237 22396 22942 23014 23275 23332 23438 23483 23892 23895 23945 24053 24096 24102 24110 24282 24473 26197 26297 26989 27706 27856 28395 28510 30364 31505 31887 32018 32061 324588.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/80?format=asciiInfrareddefaultJ/AJ/143/80/table2Northern Probable Young Candidate (PYC) listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIP? Hipparcos identifier if availablemeta.idintnullableKsmag[6/11.3] The 2MASS Ks band magnitudemagphot.mag;em.IR.KfloatpmRAProper motion in Right Ascension (3)mas/yrpos.pm;pos.eq.rafloatpmDEProper motion in Declination (3)mas/yrpos.pm;pos.eq.decfloatTYCTycho2 identifier if available (Cat. I/259)meta.idcharSimbadNameSimbad column added by the CDSmeta.idcharnullable_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedPYCProbable young candidate identifier <[SLS2012] PYC JHHMMm+DDMMW> in Simbad (1)meta.id;meta.maincharRAICRSRight Ascension (ICRS, epoch=J2000)degpos.eq.ra;meta.mainDEICRSDeclination (ICRS, epoch=J2000)degpos.eq.dec;meta.mainVmag[9.2/20.6] The V band magnitude (2)magphot.mag;em.opt.VfloatJmag[6.6/11.9] The 2MASS J band magnitudemagphot.mag;em.IR.JfloatHmag[6.1/11.4] The 2MASS H band magnitudemagphot.mag;em.IR.HfloatDkin[17/70] Kinematic distance (4)pcpos.distance;pos.heliocentricfloate_DkinUncertainty in Dkinpcstat.errorfloatRVp[-29.7/19.7] Predicted radial velocity (5)km/sspect.dopplerVelocfloate_RVpUncertainty in RVp (6)km/sstat.errorfloatlog(X)Logarithm of X-ray to Ks band flux ratiophot.flux;arith.ratiofloatnullablelog(N)Log of GALEX NUV to Ks band flux ratiophot.flux;arith.ratiofloatnullablelog(F)Log of GALEX FUV to Ks band flux ratiophot.flux;arith.ratiofloatnullableA[01] PYC status from activity index (7)meta.codecharC[0/1]? PYC status from color index (8)meta.codeintnullableP[1/4] The priority index (4=most promising youth candidate) (9)meta.codeintGrp[1/2] Moving group candidacy: 1={beta} Pic (BPMG), 2=AB Dor (ABDMG)meta.id.parentintGALEXCross-match with GALEX-DR5 (Cat. II/312) within 5"meta.ref.urlintnullable2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar