J/ApJ/822/40ivo://CDS.VizieR/J/ApJ/822/40doi:10.26093/cds/vizier.18220040CDSGagne J.Plavchan P.Gao P.Anglada-Escude G.Furlan E.Davison C.,Tanner A.Henry T.J.Riedel A.R.Brinkworth C.Latham D.Bottom M.,White R.Mills S.Beichman C.Johnson J.A.Ciardi D.R.Wallace K.,Mennesson B.von Braun K.Vasisht G.Prato L.Kane S.R.Mamajek E.E.,Walp B.Crawford T.J.Rougeot R.Geneser C.S.Catanzarite J.2023-04-20T15:20:31Z2016-08-30T07:29:16ZCDS support team

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

cds-question@unistra.frradial-velocityinfrared-astronomyspectroscopylate-type-starsWe present the results of a precise near-infrared (NIR) radial velocity (RV) survey of 32 low-mass stars with spectral types K2-M4 using CSHELL at the NASA InfraRed Telescope Facility in the K band with an isotopologue methane gas cell to achieve wavelength calibration and a novel, iterative RV extraction method. We surveyed 14 members of young (~25-150Myr) moving groups, the young field star {epsilon} Eridani, and 18 nearby (<25pc) low-mass stars and achieved typical single-measurement precisions of 8-15m/s with a long-term stability of 15-50m/s over longer baselines. We obtain the best NIR RV constraints to date on 27 targets in our sample, 19 of which were never followed by high-precision RV surveys. Our results indicate that very active stars can display long-term RV variations as low as ~25-50m/s at ~2.3125{mu}m, thus constraining the effect of jitter at these wavelengths. We provide the first multiwavelength confirmation of GJ876bc and independently retrieve orbital parameters consistent with previous studies. We recovered RV variabilities for HD160934AB and GJ725AB that are consistent with their known binary orbits, and nine other targets are candidate RV variables with a statistical significance of 3{sigma}-5{sigma}. Our method, combined with the new iSHELL spectrograph, will yield long-term RV precisions of <~5m/s in the NIR, which will allow the detection of super-Earths near the habitable zone of mid-M dwarfs.2016ApJ...822...40Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/822/40CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/454/593 : Young moving groups in solar neighbourhood (Bell+, 2015)J/other/Sci/350.64 : 51 Eri b near-infrared spectrum (Macintosh+, 2015)J/AJ/149/158 : The BUD sample. I. L dwarf activity sample (Schmidt+, 2015)J/A+A/576/A66 : BD+20 1790 RVs and photometry (Hernan-Obispo+, 2015)J/MNRAS/443/2561 : CONCH-SHELL catalog of nearby M dwarfs (Gaidos+, 2014)J/A+A/568/A26 : SACY. V. Multiple systems (Elliott+, 2014)J/ApJ/788/81 : BANYAN III. RV and rotation of low-mass stars (Malo+, 2014)J/AJ/147/20 : Spectroscopy of 447 nearby M dwarfs (Newton+, 2014)J/ApJS/208/9 : Intrinsic colors & temperatures of PMS stars (Pecaut+, 2013)J/A+A/555/A11 : DUNES survey observational results (Eiroa+, 2013)J/MNRAS/431/2063 : UV/X-ray activity of M dwarfs within 10pc (Stelzer+, 2013)J/A+A/551/L8 : Chromospheric activity of field stars (Pace, 2013)J/A+A/551/A36 : Metallicity of M dwarfs. III. (Neves+, 2013)J/ApJ/762/88 : Young stellar kinematic group cand. members (Malo+, 2013)J/A+A/549/A109 : HARPS XXXI. The M-dwarf sample (Bonfils+, 2013)J/other/RMxAA/48.177 : Speckle interferometry of binaries (Orlov+, 2012)J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)J/AJ/143/93 : Rotational velocities in early-M stars (Reiners+, 2012)J/ApJ/734/70 : Chromospheric activity of Southern stars (Arriagada, 2011)J/ApJ/727/117 : RVs of four exoplanet candidates (Meschiari+, 2011)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/ApJ/723/684 : NIRSPEC ultracool dwarf RV survey (Blake+, 2010)J/other/Sci/330.653 : Detected planets in the Eta-Earth Survey (Howard+, 2010)J/MNRAS/407/2269 : Polarisation of a sample of late M dwarfs (Morin+, 2010)J/A+A/521/A12 : RVs of nearby late-type stars (Maldonado+, 2010)J/MNRAS/407/1657 : Rotation velocities of dwarf M stars (Houdebine, 2010)J/A+A/520/A15 : RACE-OC project: YSOs within 100pc (Messina+, 2010)J/ApJ/719/890 : Keck radial velocities of GJ 876 (Rivera+, 2010)J/A+A/514/A97 : HR spectra of Late-type stars (Lopez-Santiago+ 2010)J/A+A/513/L8 : BD+20 1790 radial velocity curve (Figueira+, 2010)J/A+A/512/A45 : Radial velocities of BD+20 1790 (Hernan-Obispo+, 2010)J/A+A/511/A21 : Radial velocities of GJ876 planetary system (Correia+, 2010)J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)J/ApJ/699/649 : Young M dwarfs within 25pc. I. (Shkolnik+, 2009)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/ApJ/670/1367 : Gemini Deep Planet Survey (Lafreniere+, 2007)J/AJ/133/2524 : Spectra of young nearby stars (White+, 2007)J/AJ/133/889 : Faint companions of Hipparcos stars (Lepine+, 2007)J/A+A/460/695 : Associations Containing Young stars (Torres+, 2006)J/ApJ/634/625 : Radial velocities and photometry of GJ 876 (Rivera+, 2005)J/AJ/130/1680 : LSPM-North PM catalog nearby stars (Lepine+, 2005)J/AJ/128/463 : A preliminary 20pc census from the NLTT cat. (Reid+, 2004)J/AJ/126/2048 : NStars project: the Northern Sample. I. (Gray+, 2003)J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)J/AJ/123/3356 : Palomar/MSU nearby star spec. survey III. (Gizis+, 2002)J/A+A/331/581 : Rotation and activity in field M dwarfs (Delfosse+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/822/40https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/822/40http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/822/40https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/822/40https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/822/40http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/822/40GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/822/40/table1 (Precise NIR radial velocities (RVs) follow-up sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/822/40/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/822/40/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/822/40/table1?GETtext/xml+votable180.050000true310.4631125-32.436172220.0055555555555555566/940 1033 1762 2737 3345 7264 8627 8915 10146 10203 10721 11177 12770 13743 15311 17288 18496 20071 21180 22773 22964 23895 27392 30429 36697 44967 48263 48274https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/822/40?format=asciiInfrareddefaultJ/ApJ/822/40/table1Precise NIR radial velocities (RVs) follow-up samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadSimbad column added by the CDSmeta.ref.urlcharSet[1/3] Sample description (1)meta.note;src.sampleintNameTarget identifiermeta.id;meta.mainNobsNumber of observation dates for this starmeta.numberintnullableNvNumber of RV measures for this starmeta.numberintnullableRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSpTMK spectral typesrc.spTypecharr_SpTReference for SpT (see refs.dat file)meta.ref;pos.frameintKsmag[1.7/7.1] 2MASS K_s_ band magnitudemagphot.mag;em.IR.Kfloatf_Ksmag[b] Flag on Ksmag (2)meta.codecharl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini[0.1/70] Projected rotational velocitykm/sphys.veloc.rotatfloate_vsini? Uncertainty in vsinikm/sstat.error;phys.veloc.rotatfloatnullabler_vsiniReference for vsini (see refs.dat file)meta.refintSep[0.09/50]? Binary separationarcsecpos.angDistancefloatnullabler_Sep? Reference for Sep (see refs.dat file)meta.ref;pos.frameintnullablelogR'HK[-5.3/-3.8]? Log of R'_HK_ indexspect.indexfloatnullablee_logR'HK? Uncertainty in logR'HKstat.errorfloatnullablef_logR'HK[e] Flag on logR'HK (2)meta.codecharActActivity flag (3)meta.codecharr_Act? Reference flag for Act (see refs.dat file)meta.ref;pos.frameintnullableMCatDisplay data from Gaidos+, 2014, J/MNRAS/443/2561 and Malo+, 2013, J/ApJ/762/88, within 1"meta.ref.urlintnullableRVInteractive plot of radial velocitiesmeta.ref.urlchar2MDisplay the 2MASS data (Cutri+ 2003, Cat. II/246) within 1"meta.ref.urlcharJ/ApJ/822/40/table2Log of all science star observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget identifiermeta.id;meta.mainDateUT date of the observation (1)time.epoch;obsnullableN[1/64] Number of spectra obtained (1)meta.numberintS/N[15/110] Median Signal-to-Noise of spectra (1)em.wl.central;stat.medianintJ/ApJ/822/40/table3Detailed radial velocity measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget identifier (1)meta.id;meta.mainJDJulian Date of observationdtime.epochdoublee_JD[0/0.01] Uncertainty in JDdstat.error;time.epochfloatrRVel[-1491/2359] Relative radial velocity (2)m/sphys.veloc;pos.heliocentricinte_rRVel[1/1675] Uncertainty in rRVel (2)m/sstat.errorintS/N[15/110] Signal-to-Noise (2)stat.snrintJ/ApJ/822/40/refsReferencesRefReference codemeta.noteintBibCodeBibcodemeta.bib.bibcodecharAuthFirst author's name(s)meta.bib.authorcharCommComment (VizieR catalog reference)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint