J/AJ/160/215ivo://CDS.VizieR/J/AJ/160/215doi:10.26093/cds/vizier.51600215CDSVrijmoet E.H.Henry T.J.Jao W.-C.Dieterich S.B.2024-10-11T20:10:01Z2021-02-05T08:26:58ZCDS support team

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

cds-question@unistra.frdwarf-starsmultiple-starsinfrared-photometryvisible-astronomyphotometrytrigonometric-parallaxproper-motionsastrometryWe use 20yr of astrometric data from the REsearch Consortium On Nearby Stars (RECONS) program on the Cerro Tololo Inter-American Observatory/SMARTS 0.9m telescope to provide new insight into multiple star systems in the solar neighborhood. We provide new and updated parallaxes for 210 systems and derive nine high-quality astrometric orbits with periods of 2.49-16.63yr. Using a total of 542 systems parallaxes from RECONS, we compare systems within 25pc to Gaia DR2 to define criteria for selecting unresolved astrometric multiples from the DR2 results. We find that three out of four unresolved multistar red dwarf systems within 25pc in DR2 have parallax_error >=0.32mas, astrometric_gof_al>=56, astrometric_excess-noise_sig>=108.0, ruwe>=2.0, and parallaxes more than ~10% different from the long-term RECONS results. These criteria have broad applications to any work targeting nearby stars, from studies seeking binary systems to efforts targeting single stars for planet searches.2020AJ....160..215Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/AJ/106/773 : Mass-luminosity relation (Henry+, 1993)J/AJ/147/94 : Solar neighborhood. XXXII. L and M dwarfs (Dieterich+, 2014)J/AJ/147/85 : Solar neighborhood. XXXIII. 45 M dwarfs (Riedel+, 2014)J/A+A/577/A128 : CARMENES input catalogue of M dwarfs.I (Alonso-Floriano+,2015)J/AJ/150/6 : Solar neighborhood.XXXVI. VRI variab. M dwarfs (Hosey+, 2015)J/AJ/152/141 : Solar neighborhood. XXXVII. RVs for M dwarfs (Benedict+, 2016)J/AJ/154/151 : The solar neighborhood .XXXX. New young stars (Bartlett+,2017)J/AJ/154/124 : M dwarfs-long-term photometric variability (Clements+, 2017)J/A+A/597/A47 : CARMENES input catalogue M dwarfs II (Cortes-Contreras+, 2017)J/AJ/153/71 : Kepler follow-up observation program.I. Imaging (Furlan+,2017)J/AJ/154/191 : The solar neighborhood. XLII. New nearby subdwarfs (Jao+,2017)J/AJ/154/32 : Solar neighborhood.XXXIX. Near white dwarfs (Subasavage+,2017)J/AJ/153/14 : Solar neighborhood XXXVIII. Near M dwarf (Winters+, 2017)J/AJ/155/265 : The solar neighborhood. XLIV. RECONS discoveries (Henry+,2018)J/AJ/156/49 : The solar neighborhood. XLIII. New nearby stars (Riedel+,2018)J/AJ/156/102 : The TESS Input Catalog & Candidate Target List (Stassun+,2018)J/A+A/623/A72 : Binarity of Hipparcos stars from Gaia anomaly (Kervella+,2019)J/A+A/628/A81 : Gaia DR2-based catalogue of 237 Ap stars (Scholz+, 2019)J/AJ/157/216 : Stellar multiplicity rate M dwarfs within 25pc (Winters+,2019)J/AJ/159/290 : RVs of 12 spectroscopic binaries M-dwarfs (Winters+, 2020)J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/215https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/215/table2 (Astrometric solutions from RECONS and Gaia DR2 for red dwarfs within 25pc common to both these catalogs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/215/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/215/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/215/table2?GETtext/xml+votable180.050000true1.1519167-40.73408330.005555555555555556Cone search capability for table J/AJ/160/215/table1 (New and updated results from the RECONS astrometry program)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/215/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/215/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/215/table1?GETtext/xml+votable180.050000true1.1519167-40.73408330.0055555555555555566/22 137 221 250 265 309 527 546 586 672 725 1122 2058 4099 4158 4262 4462 4708 4867 5000 8331 8381 8402 8446 8562 8719 9384 10303 12300 12454 12865 13451 16434-16435 16440 16502 16543 16609 16754 16758 16827 16847 16856 16993 17045 17058 17125 17186 17271 17302 17348 17412 17423 17511 17534 17542 17617 17712 17813 17943 17953 17964 17985 18017 18060 18268 18440 18496 18666 18726 18761 19040 19668 19763 19777 19886 19895 20507 20533 20602 20646 20728 20733 20748 20754 20795 20993 21050 21149 21151 21180 21209 21337 21354 21420 21427 21480 21504 21660 21676 21736-21737 21925 22014 22030 22040 22148-22149 22289 22309 22325 22491 22535 22581 22603 22645 22709 22738-22739 22856 23010 23047 23078 23112 23144 23237 23388 23391 23443 23564 23718 23735 23897 23910 23997 24590 24603 24616 24683 24797 24824 24887 24897 25009 25021 25084 25198 25300 25310 25363 25528 25596 25616 25669 25828 25954-25955 26127 26152 26161 26244 26279 26300 26327 26538 26699 26706 26714 26726 26742 27058 27383 27459 27462 27730-27731 27762 28006 28195 28816 28928 28955 29094 29099 29204 29325 29458 29598 29767 29791 29939 30011 30260 30327 30350 30505 30729 30749 30771 30833 30883 30925 31011 31019 31026 31062 31072 31216 31268 31296 32015 32033 32093 32262 32296 32444 32608 32650 32854 33016 33049-33050 33071 33199 33203 33234 33300 33324 33379 33381 33403 33425 33435 33459 33533 33579 33630 33655 33713 33805 33964 34111 34139 34145 34193 34266 34289 34291 34301 34448 34535 34561 34568 34622 34626 34660 34701 34708 34757 34776 34835 34908 34921 34955 35020 35022 35112-35113 35143 35154 35247 35327 35497 35499 35520 35670 35841 35864 35923 35957 35969 36061 36160 36235 36264 36313 36614 36640 36693 36701 36732 36821-36822 36842 36845 36871-36872 36883 36924 36941 36971 37005 37023 37041 37073 37122 37239 37257 37267 37302 37332 37377 37379 37423 37442 37453 37519 37598 37602 37632 37650 37678 37769 37858 38145 38152 38176 38247 38256 38322 38430 38456 38464 38486 38551 38566 38646 38744 38853 38876 38932 38986 39027 39140 39242 39331 39350 39439 39521 39545 39585 39778 39784 39792 39807 39944 39998 40167 40181 40197 40224-40225 40233 40250 40275 40332 40359 40373 40386-40387 40402 40411 40435 40485 40496 40505 40513 40623 40669 40738 40801 40868 40882 40932 40941 41042 41090 41141 41200 41268 41324 41348 41377 41557 41575 41591 41811 41998 42013 42054-42055 42092 42225 42255 42261 42302 42314 42325 42411 42426 42459 42528 42558 42711 42721 42761 42767 42856 42888 42910 42950 43108 43149 43155 43187 43413 43437 43444 43475 43545 43565 43580 43598 43611 43633 43652 43723 43758 43814 43851 43975 44001 44029 44078 44129 44226 44299 44306 44351 44371 44437 44456 44518 44585 44632 44690 44696 44728 44782 44866 44921-44922 44936-44937 44970 45069 45075 45102 45113 45118 45166 45187 45213 45224 45237 45377 45389 45419 45495 45564 45626 45701 45740 45752 45834 45878 45928 45960 45962 45964 46015 46029 46031 46123 46203 46256 46377 46417 46463 46466 46504 46540 46656 46665 46698 46718 46734 46736 46739 46750 46774 46840-46841 46892 46922 46953 46986 47061 47151 47158 47219 47251 47347 47408 47453 47487 47510 47639 47677 47732 47813 47826 47859 47889 47912 47936 47951 48066 48093 48173 48263 48423 48500 48516 48644 48684 48800-48801 48906 48935 48957 48985 49029 49056 491391.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/215?format=asciiOpticalInfrareddefaultJ/AJ/160/215/table2Astrometric solutions from RECONS and Gaia DR2 for red dwarfs within 25pc common to both these catalogsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSystem identifiermeta.id;meta.maincharprimaryRAJ2000[0/23] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainplxRECO[34.2/769.66] RECONS absolute parallaxmaspos.parallax.trigfloate_plxRECO[0.48/5.28] Uncertainty in RECOplxmasstat.errorfloatr_plxRECOReference for RECOplx (1)meta.ref;pos.framecharplxGDR2[36.634/768.5]? Gaia DR2 absolute parallaxmaspos.parallax.trigfloatnullableExsig[0/112000]? Significance of excess noisestat.fit.goodnessdoublenullablee_plxGDR2[0.024/1.387]? Uncertainty in GDR2plxmasstat.errorfloatnullableGofF[0.74/953]? Goodness-of-fit; quality of astrometric fitstat.fit.goodnessfloatnullableEx[0/18]? Difference between DR2 data and astrometic fitmasobs.param;arith.difffloatnullableNgood[42/829]? Number of observations not downweighted (2)meta.numberintnullableNbad[0/79]? Number of observations downweighted (2)meta.numberintnullableRatio[0/27.3]? Ratio of Nbad to Ngood%meta.numberfloatnullableRUWE[0.75/43.3]? Renormalized unit weight errorstat.weightfloatnullableGmag[5.48/19.1]? Gaia DR2 G band apparent magnitudemagphot.mag;em.opt.VfloatnullableClassSystem classification (3)src.classcharSus[X] Meets criteria for potential unresolved multiplicity (97 occurrences)meta.codecharRECONSIndicates that restults from RECONS astrometry program are avalaible (table 1)meta.ref.urlcharJ/AJ/160/215/table1New and updated results from the RECONS astrometry programe_pm[0.1/3.4] Uncertainty in pmmas/yrstat.errorfloattheta[2.9/359] Position angle of proper motiondegpos.pm;pos.posAngfloate_theta[0/2.6] Uncertainty in thetadegstat.error;pos.posAngfloatVtan[2/310] Tangential velocitykm/sphys.veloc.transversefloatNotesAdditional notes (2)meta.notecharNameSystem identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[0/23] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainFiltFilter used; 114 V, 48 R or 54 Iinstr.setupcharNseaNumber of seasonsmeta.numbercharNfrm[21/287] Number of framesmeta.numberintCover-b[1999/2017] Beginning of time coverageyrtime.epochfloatCover-e[2003/2021] End of time coverageyrtime.epochfloatDur[2.83/20.2] Duration of time coverageyrtime.durationfloatNref[4/15] Number of reference stars usedmeta.noteintplx-rel[8.37/277.22] Relative parallaxmaspos.parallax.trigfloate_plx-rel[0.47/4.93] Uncertainty in plx-relmasstat.errorfloatplx-cor[0.14/2.97] Correction to parallax (1)maspos.parallax.trigfloate_plx-cor[0/0.76] Uncertainty in plx-cormasstat.errorfloatplx-abs[9.48/279] Final absolut parallaxmaspos.parallax.trigfloate_plx-abs[0.49/4.94] Uncertainty in plx-absmasstat.errorfloatpm[13.7/4697.7] Proper motionmas/yrpos.pmfloat