J/AJ/144/99ivo://CDS.VizieR/J/AJ/144/99doi:10.26093/cds/vizier.51440099CDSDeshpande R.Martin E.L.Montgomery M.M.Zapatero Osorio M.R.,Rodler F.del Burgo C.Phan Bao N.Lyubchik Y.Tata R.Bouy H.,Pavlenko Y.2017-07-12T15:35:21Z2013-10-28T13:28:35ZCDS support team

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

cds-question@unistra.frm-starsdwarf-starsline-intensitiesstellar-spectral-typesWe present observations of 36 late M dwarfs obtained with the KeckII/NIRSPEC in the J band at a resolution of ~20000. We have measured projected rotational velocities, absolute radial velocities, and pseudo-equivalent widths of atomic lines. Twelve of our targets did not have previous measurements in the literature. For the other 24 targets, we confirm previously reported measurements. We find that 13 stars from our sample have vsini below our measurement threshold (12km/s) whereas four of our targets are fast rotators (vsini>30km/s). As fast rotation causes spectral features to be washed out, stars with low projected rotational velocities are sought for radial velocity surveys. At our intermediate spectral resolution, we have confirmed the identification of neutral atomic lines reported in McLean et al. We also calculated pseudo-equivalent widths of 12 atomic lines. Our results confirm that the pseudo-equivalent width of KI lines is strongly dependent on spectral types. We observe that the pseudo-equivalent width of FeI and MnI lines remains fairly constant with later spectral type. We suggest that these lines are particularly suitable for deriving metallicities for late M dwarfs.2012AJ....144...99Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/99CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)J/ApJ/705/1416 : Volume-limited sample of M7-M9.5 dwarfs <20pcJ/AJ/135/785 : SDSS-DR5 low-mass star spectroscopic sample (West+, 2008)J/MNRAS/383/831 : New DENIS nearby L and late-M dwarfs (Phan-Bao+, 2008)J/A+A/331/581 : Rotation and activity in field M dwarfs (Delfosse+ 1998)J/A+A/446/515 : Distances of nearby ultracool dwarfs (Phan-Bao+, 2006)J/A+A/433/151 : Spectrocopic results on ROSAT late-type starsJ/A+A/441/653 : 32 DENIS nearby red dwarfs (Crifo+, 2005)J/AJ/133/439 : Luminosity function of M7-L8 ultracool dwarfs (Cruz+, 2007)J/AJ/128/426 : Subdwarfs in the SDSS (West+, 2004)J/A+A/401/959 : 35 DENIS late-M dwarfs between 10 & 30pc (Phan-Bao+, 2003)J/AJ/126/2421 : 2MASS-Selected sample of ultracool dwarfs (Cruz+, 2003)J/AJ/123/2828 : Spectroscopy of northern NLTT stars (Cruz+, 2002)J/AJ/123/3356 : Palomar/MSU nearby star spectroscopic survey. III.J/PASP/109/849 : Probing the LHS Catalog (Gizis+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/99https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/99http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/99https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/99https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/99http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/99GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/99/Mstars (Velocities, distances and pseudo-equivalent widths of KI, FeI, NaI, TiI, MnI, and AlI lines (tables 2--6))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/99/Mstars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/99/Mstars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/99/Mstars?GETtext/xml+votable180.050000true1.23975-17.160250.0055555555555555566/360 399 826 2101 4768 9677 9779 10850 11639 13688 14858 14910 16568 16971 17156 17348 17712 17985 18083 19376 19680 19895 22535 22687 22739 22950 23144 27462 27762 30505 31300 34289 36313 44226 44306 48462https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/99?format=asciiOpticaldefaultJ/AJ/144/99/MstarsVelocities, distances and pseudo-equivalent widths of KI, FeI, NaI, TiI, MnI, and AlI lines (tables 2--6)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharONameOther namemeta.idcharSpTSpectral typesrc.spTypecharl_vsiniLimit flag (<) on vsinimeta.code.error;phys.veloc.rotatcharvsini? Rotational velocitykm/sphys.veloc.rotatfloatnullablee_vsini? Mean error on vsinikm/sstat.error;phys.veloc.rotatfloatnullablel_vsini1[<= ] Limit flag (<=) on vsini1meta.code.errorcharvsini1? Rotational velocity from literaturekm/sphys.veloc.rotatfloatnullablee_vsini1? Mean error on vsini1km/sstat.errorfloatnullabler_vsini1[efgh] Reference of vsini1 (G1)meta.ref;pos.framecharS/NSignal-to-noise ratiostat.snrintRV? Heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_RV? Mean error on RVkm/sstat.errorfloatnullableRV1? Radial velocity from literaturekm/sspect.dopplerVelocfloatnullablee_RV1? Mean error on RV1km/sstat.errorfloatnullableplx? Trigonometric parallaxarcsecpos.parallax.trigfloatnullablee_plx? Mean error on plxarcsecstat.error;pos.parallaxfloatnullableDist? Spectrophotometric distancepcpos.distance;pos.heliocentricfloatnullablee_Dist? Mean error on Distpcstat.errorfloatnullableRef[1-9,a-e ] References of parallaxes and distances (G1)meta.ref;pos.distance;pos.parallax.photcharpEW1Pseudo-equivalent width of KI at 11690{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW1Uncertainty in pEW10.1nmstat.errorfloatpEW2Pseudo-equivalent width of KI at 11771{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW2Uncertainty in pEW2; in {AA}0.1nmstat.errorfloatpEW3Pseudo-equivalent width of KI at 12435{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW3Uncertainty in pEW3; in {AA}0.1nmstat.errorfloatpEW4Pseudo-equivalent width of KI at 12522{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW4Uncertainty in pEW4; in {AA}0.1nmstat.errorfloatpEW5? Pseudo-equivalent width of FeI at 11786{AA}; in {AA}0.1nmspect.line.eqWidthfloatnullablee_pEW5? Uncertainty in pEW50.1nmstat.errorfloatnullablepEW6Pseudo-equivalent width of FeI at 11886{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW6Uncertainty in pEW6; in {AA}0.1nmstat.errorfloatpEW7Pseudo-equivalent width of FeI at 11976{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW7Uncertainty in pEW7; in {AA}0.1nmstat.errorfloatpEW8? Pseudo-equivalent width of NaI at 12682{AA}; in {AA}0.1nmspect.line.eqWidthfloatnullablee_pEW8? Uncertainty in pEW8; in {AA}0.1nmstat.errorfloatnullablepEW9? Pseudo-equivalent width of TiI at 12832{AA}; in {AA}0.1nmspect.line.eqWidthfloatnullablee_pEW9? Uncertainty in pEW90.1nmstat.errorfloatnullablepEW10? Pseudo-equivalent width of TiI at 12850{AA}; in {AA}0.1nmspect.line.eqWidthfloatnullablee_pEW10? Uncertainty in pEW10; in {AA}0.1nmstat.errorfloatnullablepEW11Pseudo-equivalent width of FeI at 12899{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW11Uncertainty in pEW11; in {AA}0.1nmstat.errorfloatpEW12Pseudo-equivalent width of NaI at 13123{AA}; in {AA}0.1nmspect.line.eqWidthfloate_pEW12Uncertainty in pEW12; in {AA}0.1nmstat.errorfloatpEW13? Pseudo-equivalent width of NaI at 13150{AA}; in {AA}0.1nmspect.line.eqWidthfloatnullablee_pEW13? Uncertainty in pEW13; in {AA}0.1nmstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main