J/ApJ/788/81ivo://CDS.VizieR/J/ApJ/788/81doi:10.26093/cds/vizier.17880081CDSMalo L.Artigau E.Doyon R.Lafreniere D.Albert L.Gagne J.2017-06-12T08:24:55Z2015-06-22T14:39:34ZCDS support team

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

cds-question@unistra.frradial-velocityx-ray-sourcesinfrared-photometryproper-motionsstellar-associationsBased on high-resolution spectra obtained with PHOENIX at Gemini South, CRIRES at VLT-UT1, and ESPaDOnS at the Canada-France-Hawaii Telescope, we present new measurements of the radial and projected rotational velocities of 219 low-mass stars. The target likely membership was initially established using the Bayesian analysis tool recently presented in Malo et al. (Paper I: 2013, J/ApJ/762/88), taking into account only the position, proper motion, and photometry of the stars to assess their membership probability. In the present study, we include radial velocity as an additional input to our analysis, and in doing so we confirm the high membership probability for 130 candidates: 27 in {beta} Pictoris, 22 in Tucana-Horologium, 25 in Columba, 7 in Carina, 18 in Argus and 18 in AB Doradus, and 13 with an ambiguous membership. Our analysis also confirms the membership of 57 stars proposed in the literature. A subsample of 16 candidates was observed at 3 or more epochs, allowing us to discover 6 new spectroscopic binaries. The fraction of binaries in our sample is 25%, consistent with values in the literature. Of the stars in our sample, 20% show projected rotational velocities (vsin i) higher than 30 km/s and therefore are considered as fast rotators. A parallax and other youth indicators are still needed to fully confirm the 130 highly probable candidates identified here as new bona fide members. Finally, based on the X-ray emission of bona fide and highly probable group members, we show that for low-mass stars in the 12-120Myr age range, the X-ray luminosity is an excellent indicator of youth and better than the more traditionally used R_X_parameter, the ratio of X-ray to bolometric luminosity.2014ApJ...788...81Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/788/81CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 1991-2015)B/cfht : Log of CFHT Exposures (CADC, 1979-)III/272 : RAVE 4th data release (Kordopatis+, 2013)III/257 : RAVE second data release (Zwitter+, 2008)J/ApJ/798/73 : BANYAN All-Sky Survey. V. Nearby YMGs (Gagne+, 2015)J/AJ/147/85 : Solar neighborhood. XXXIII. 45 M dwarfs (Riedel+, 2014)J/ApJ/783/121 : BANYAN II. Nearby young assoc. cand. members (Gagne+, 2014)J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)J/AJ/145/102 : Spectro of bright M dwarfs in the northern sky (Lepine+, 2013)J/ApJ/762/88 : Young stellar kinematic group candidate members (Malo+, 2013)J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)J/A+A/546/A61 : Radial velocities for XHIP catalogue (de Bruijne+, 2012)J/ApJ/754/44 : The AstraLux Large M-dwarf Survey (Janson+ 2012)J/AJ/144/8 : Spectroscopy of ~100 G/K/M-type Sco-Cen members (Song+, 2012)J/MNRAS/421/3189 : CaII and H{alpha} data for dK5/dM4 stars (Houdebine, 2012)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/AJ/143/80 : Low-mass stars of beta Pic & AB Dor groups (Schlieder+, 2012)J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)J/A+A/520/A15 : RACE-OC project: YSOs within 100pc (Messina+, 2010)J/AJ/140/119 : {beta}Pic and AB Dor moving groups members (Schlieder+, 2010)J/A+A/514/A97 : High-res. spectra of late-type stars (Lopez-Santiago+ 2010)J/A+A/508/833 : SACY III. Li abundances (da Silva+, 2009)J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)J/ApJ/699/649 : Young M dwarfs within 25pc. I. (Shkolnik+, 2009)J/A+A/499/129 : Old MS stars in young moving groups (Lopez-Santiago+, 2009)J/ApJS/181/444 : RASS/SDSS X-emitting stars (Agueros+, 2009)J/MNRAS/389/585 : Fundamental parameters of M dwarfs (Casagrande+, 2008)J/A+A/460/695 : Associations Containing Young stars (Torres+, 2006)J/AJ/131/3016 : Low-mass objects in Upper Scorpius (Slesnick+, 2006)J/A+A/433/151 : Spectrocopic data on ROSAT late-type stars (Zickgraf+, 2005)J/AJ/126/3007 : Spectroscopy of faint red NLTT dwarfs (Reid+, 2003)J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)J/AJ/123/3356 : Palomar/MSU nearby star spectrosc. survey III. (Gizis+, 2002)J/MNRAS/328/45 : Late-type stars members of young groups (Montes+, 2001)J/A+A/331/581 : Rotation and activity in field M dwarfs (Delfosse+ 1998)J/A+A/325/159 : Companions to M dwarfs within 5pc (Leinert+ 1997)http://www.rave-survey.org/ : RAVE - the Radial Velocity Experiment home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/788/81https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/788/81http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/788/81https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/788/81https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/788/81http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/788/81GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/788/81/table2 (Individual radial and projected rotational velocity measurements for 219 stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/81/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/81/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/81/table2?GETtext/xml+votable180.050000true6.0374583-62.18450.005555555555555556Cone search capability for table J/ApJ/788/81/members (Properties of candidate members of young kinematic groups and membership probabilities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/788/81/members?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/788/81/members?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/788/81/members?GETtext/xml+votable180.050000true4.3480417-66.75344440.0055555555555555566/518 674 850 1245 2101 2660 5677 6348 9747 9839 11170 12417 12530 12532 13450 16455 16719 16930 16993 17288 17502 17588 17606 17607 18538 18740 18743 18760 19144 19409 19777 19782 19888 19931 19948 20074 20257 20282 20381 20573 20602 20624 20632 20647 20701 20749 21031 21051 21090 21146 21180 21199 21202 21239 21254 21277 21306 21377 21420 21428 22535 22647 22683 22744 22857 24629 24740 24843 25745 28746 28832 28842 28921 28993 29136 29168 29357 29519 29565 29598 29924 29958 30031 30263 30860 31007 32275 32414 32847 32868 32890 33055 33065 33094 33129 33167 33237 33411 33449 33493 33520 33545 33565 33583 33694 33706 33716 33737 33882 33894 33919 33956 33996 34012 34058 34118 34127 34145 34152 34196 34244 34417 34450 34486 34736 34830 34920 35112 35121 35131 35147 35248 35447 35640 35814 35847 35861 35885 35887 36045 36466 36509 36543 36641 36778 36901 36906 36909 36948 36961 36969 36978 37013 37092 37097 37134 37309 37310 37387 37418 37486 37560 37573 37580 37638 37690 37765 37769 37856 38120 38191 38199 38347 38359 38363 38440 38484 38687 38797 38800 38953 39008 39019 39396 39586 40435 40976 41184 41247 41474 41482 41505 41538 41601 41854 42092 42176 42272 42333 42360 42483 43142 43175 43372 43425 43571 43601 43670 43704 44021 44363 44751 45035 45062 45069 45108 45336 45351 45366 45377 45378 45389 45391 45475 45492 45503 45770 46082 46207 46236 46307 46456 46629 46692 46828 46922 47120 47249 47345 47371 47652 47863 47911 47941 47943 48038 48124 48235 48299 48318 48325 48361 48553 48559 48648 48684 48691 48800 48807 48905 48926 491351.5062136169708525e-19 2.689546822829005e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/788/81?format=asciiOpticalX-rayInfrareddefaultJ/ApJ/788/81/table2Individual radial and projected rotational velocity measurements for 219 starsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (JHHMMSSss+DDMMSSs)meta.id;meta.maincharm_2MASSMultiple component (1)meta.code.multipcharPmSimbad column added by the CDSmeta.ref.urlintnullableDateDate of the observationtime.epochnullableInstInstrument used: PHOENIX, CRIRES or ESPADONSinstr.setupcharRVel[-54.1/117] Radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVel[0.2/8] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini[1.9/117.2] Projected rotational velocitykm/sphys.veloc.rotatfloate_vsini[0.9/17]? Uncertainty in vsinikm/sstat.error;phys.veloc.rotatfloatnullable_RAPositions from 2MASS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from 2MASS names (declination part)degpos.eq.dec;meta.mainJ/ApJ/788/81/refsReferencesBibCodeBibcodemeta.bib.bibcodecharRefReference codemeta.notecharAutAuthor's name(s)meta.bib.authorcharComCommentmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ/ApJ/788/81/membersProperties of candidate members of young kinematic groups and membership probabilitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNYAAbbreviated Nearby Young Association (MG=Moving Group, A.=Association)meta.id.parent2MASS2MASS identifier (JHHMMSSss+DDMMSSs)meta.id;meta.maincharIcmag[8.5/12.6] DENIS catalog Ic-band magnitude (1)magphot.mag;em.opt.Ifloate_Icmag[0/0.2] Uncertainty in Icmagmagstat.error;phot.mag;em.opt.Ifloatr_IcmagSource of Icmag (see refs.dat file)meta.ref;pos.framecharJmag[7.2/11] 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag[0.02/0.04] Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatpmRA[-482/315] Proper motion along RA times cos(DE) (3)mas/yrpos.pm;pos.eq.rafloate_pmRA[0/9.1] Uncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-239/387.1] Proper motion along DE (3)mas/yrpos.pm;pos.eq.decfloate_pmDE[0/32] Uncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatr_pmDESource of proper motion (see refs.dat file)meta.ref;pos.pm;pos.eq.deccharSpTMK spectral type (4)src.spTypecharlogfX[-13/-7]? Log ROSAT X-ray flux; erg/s/cm^2^ (5)log(mW.m**-2)phot.flux;em.X-rayfloatnullableHa[-2/60]? H{alpha} equivalent width ({AA}) (6)0.1nmspect.line.eqWidthfloatnullabler_HaSource of Ha (see refs.dat file)meta.ref;pos.framecharl_LiLimit flag on Limeta.code.errorcharLi[0/710]? Lithium equivalent width (m{AA}) (7)1e-13mspect.line.eqWidthintnullabler_LiSource of Li (see refs.dat file)meta.ref;pos.framecharNvNumber of observations of the candidate member (table 2)meta.numberintnullablel_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini[2.6/117.2]? Projected rotational velocity (8)km/sphys.veloc.rotatfloatnullablee_vsini[0.2/13.1]? Uncertainty in vsinikm/sstat.error;phys.veloc.rotatfloatnullabler_vsiniSource of vsini (see refs.dat file)meta.refcharRVm[-26.3/33.4] Measured Radial Velocity (9)km/sspect.dopplerVelocfloate_RVm[0/8] Uncertainty in RVmkm/sstat.errorfloatr_RVmSource of RVm (see refs.dat file)meta.ref;pos.framecharRVp[-24.1/31.3]? Predicted Radial Velocity (10)km/sspect.dopplerVelocfloatnullablee_RVp[0.5/2.1]? Uncertainty in RVpkm/sstat.errorfloatnullabledpi[11.8/96.2]? Trigonometric distance (11)pcpos.distance;pos.heliocentricfloatnullablee_dpi[0.4/12]? Uncertainty in dpipcstat.errorfloatnullabler_dpiSource of dpi (see refs.dat file)meta.ref;pos.framechards[3/90]? Statistical distance (10)pcpos.distance;pos.heliocentricintnullablee_ds[1/13]? Uncertainty in dspcstat.errorintnullableP[0/100]? Membership probability (12)%stat.fit.goodnessfloatnullablef_P[l] probable binary (13)meta.codecharPv[89.5/100]? Membership probability (14)%statfloatnullablelogLx[28/31]? Log ROSAT X-ray luminosity; erg/s (15)log(1e-07W)phys.luminosity;em.X-rayfloatnullablee_logLx[0.1/0.4]? Uncertainty in logLxlog(1e-07W)stat.errorfloatnullableRefReference(s) (see refs.dat file)meta.ref;pos.framecharM13Sources within 1" from Paper I (Malo+, 2013, J/ApJ/762/88)meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharbPicP[0/100] {beta}Pic MG membership probability%statfloatf_bPicP[b] binary hypothesis probable (1)meta.codecharbPicP1[0/100] {beta}Pic MG membership probability (2)%statfloatf_bPicP1[b] binary hypothesis probable (1)meta.codecharbPicP3[0/100]? {beta}Pic MG membership probability (3)%statfloatnullablef_bPicP3[b] binary hypothesis probable (1)meta.codecharTWAP[0/100] TW Hya assoc. membership probability%statfloatf_TWAP[b] binary hypothesis probable (1)meta.codecharTWAP1[0/100] TW Hya assoc. membership probability (2)%statfloatf_TWAP1[b] binary hypothesis probable (1)meta.codecharTWAP3[0/100]? TW Hya membership probability (3)%statfloatnullablef_TWAP3[b] binary hypothesis probable (1)meta.codecharTHAP[0/100] Tuc-Hor Assoc. membership probability%statfloatf_THAP[b] binary hypothesis probable (1)meta.codecharTHAP1[0/100] Tuc-Hor membership probability (2)%statfloatf_THAP1[b] binary hypothesis probable (1)meta.codecharTHAP3[0/100]? Tuc-Hor membership probability (3)%statfloatnullableColP[0/100] Columba membership probability%statfloatf_ColP[b] binary hypothesis probable (1)meta.codecharColP1[0/100] Columba membership probability (2)%statfloatf_ColP1[b] binary hypothesis probable (1)meta.codecharColP3[0/100]? Columba membership probability (3)%statfloatnullablef_ColP3[b] binary hypothesis probable (1)meta.codecharCarP[0/100] Car asspc. membership probability%statfloatf_CarP[b] binary hypothesis probable (1)meta.codecharCarP1[0/100] Car asspc. membership probability (2)%statfloatf_CarP1[b] binary hypothesis probable (1)meta.codecharCarP3[0/100]? Car asspc. membership probability (3)%statfloatnullableArgP[0/100] Argus Assoc. membership probability%statfloatf_ArgP[b] binary hypothesis probable (1)meta.codecharArgP1[0/100] Argus Assoc. membership probability (2)%statfloatf_ArgP1[b] binary hypothesis probable (1)meta.codecharArgP3[0/100]? Argus Assoc. membership probability (3)%statfloatnullablef_ArgP3[b] binary hypothesis probable (1)meta.codecharABDorP[0/100] AB Dor MG membership probability%statfloatf_ABDorP[b] binary hypothesis probable (1)meta.codecharABDorP1[0/100] AB Dor MG membership probability (2)%statfloatf_ABDorP1[b] binary hypothesis probable (1)meta.codecharABDorP3[0/100]? AB Dor MG membership probability (3)%statfloatnullablef_ABDorP3[b] binary hypothesis probable (1)meta.codecharFldP[0/34] Field membership probability%statfloatFldP1[0/10] Field membership probability (2)%statfloatFldP3[0/100]? Field membership probability (3)%statfloatnullable_RAPositions from 2MASS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from 2MASS names (declination part)degpos.eq.dec;meta.main