J/AJ/155/215ivo://CDS.VizieR/J/AJ/155/215doi:10.26093/cds/vizier.51550215CDSMason B.D.Hartkopf W.I.Miles K.N.Subasavage J.P.Raghavan D.,Henry T.J.2019-01-11T05:17:27Z2018-12-20T07:36:17ZCDS support team

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

cds-question@unistra.frdwarf-starsm-starsmultiple-starsinterferometryephemeridesWe report high-resolution optical speckle observations of 336 M dwarfs, which results in 113 measurements of the relative position of 80 systems and 256 other stars with no indications of duplicity. These are the first measurements for two of the systems. We also present the earliest measurements of relative position for 17 others. We include orbits for six of the systems, two revised and four reported for the first time. For one of the systems with a new orbit, G 161-7, we determine masses of 0.156+/-0.011 and 0.1175+/-0.0079 M_{sun}_ for the A and B components, respectively. All six of these new calculated orbits have short periods (between five and 38 years) and hold the promise of deriving accurate masses in the near future. For many other pairs we can establish their nature as physical or chance alignment, depending on their relative motion. Of the 80 systems, 32 have calculated orbits, 25 others are physical pairs, four are optical pairs, and 19 are currently unknown.2018AJ....155..215Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2014)J/AJ/137/3358 : Speckle interferometry of massive stars (Mason+, 2009)J/AJ/142/176 : Exoplanet host stars. II. Speckle interferometry (Mason+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/215https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/155/215/table7 (Speckle interferometric measurements of other pairs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/215/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/215/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/215/table7?GETtext/xml+votable180.050000true0.542416727.08211110.005555555555555556Cone search capability for table J/AJ/155/215/table2 (Speckle interferometric measurements of red dwarf pairs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/215/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/215/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/215/table2?GETtext/xml+votable180.050000true3.866625-16.13383330.0055555555555555566/340 954 2778 3006 3363 3468 3751 3864 4158 4316 4640 4708 4942 6147 6278 7695 7810 8243 8348 8578 8996 9072 9220 9696 9873 10303 10433 10497 11011 11919 12390 12400 12649 12856 13155 13243 13326 14084 14266 14515 14573 14902 15906 16186 16268 16359 16502 16827 17186 17513 17955 17965 18441 18450 18588 18907 19288 20103 20107 20278 20889 21031 21136 21149 21568 22040 22148 22325 22671 23388 23410 23429 23515 23527 23535 23538 23539 23550 24192 24582 24910 25037 25297 25616 25735 25846 25873 26005 26152 26726 27730 27731 28180 28186 29753 30167 30327 30350 30448 30612 30716 30729 30735 30833 31035 31073 31226 31666 32070 32296 32520 32549 32645 32652 33050 35640 36148 36160 36384 36526 37377 38347 38797 39487 39499 39545 39723 39792 40225 40430 40769 40801 41454 42426 42456 42767 43822 43989 44284 44358 44360 44690 44891 45379 45602 45871 46417 46466 46698 47054 47061 47681 47732 48093 48263 48648 48985https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/155/215?format=asciidefaultJ/AJ/155/215/table4New linear elementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscDiscoverer designationmeta.idcharCompComponent designationmeta.code.multipcharx0[-1.120781/1.935622] Zero point in x (x_0_) (1)arcsecpos.distance;pos.cartesian.xdoubleax[-0.028649/0.04407] Slope in x (a_x_) (1)arcsec/yrstat.fit.paramdoubley0[-0.435759/1.922322] Zero point in y (y_0_) (1)arcsecpos.distance;pos.cartesian.ydoubleay[-0.056288/0.025295] Slope in y (a_y_) (1)arcsec/yrstat.fit.paramdoubleT0[1973.89/2023.42] Time of closest apparent separation T_0_ (1)yrtime.epochdoublep0[0.409/2.665] Closest apparent separation {rho}_0_ (1)arcsecpos.angDistance;src.orbitalfloattheta0[29.85/234.52] Position angle at T_0_, {theta}_0_ (1)degpos.posAngfloatJ/AJ/155/215/table5EphemeridesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscDiscoverer designationmeta.idcharCompComponent designationmeta.code.multipchartheta18[2.6/335] Predicted value of {theta} for the year 2018.0degstat.valuefloatrho18[0.147/2.736] Predicted value of {rho} for the year 2018.0arcsecstat.valuefloattheta19[22.9/331.3] Predicted value of {theta} for the year 2019.0degstat.valuefloatrho19[0.062/2.742] Predicted value of {rho} for the year 2019.0arcsecstat.valuefloattheta20[17.2/325.9] Predicted value of {theta} for the year 2020.0degstat.valuefloatrho20[0.148/2.748] Predicted value of {rho} for the year 2020.0arcsecstat.valuefloattheta21[11.2/334.9] Predicted value of {theta} for the year 2021.0degstat.valuefloatrho21[0.095/2.756] Predicted value of {rho} for the year 2021.0arcsecstat.valuefloattheta22[2.6/349] Predicted value of {theta} for the year 2022.0degstat.valuefloatrho22[0.124/2.766] Predicted value of {rho} for the year 2022.0arcsecstat.valuefloattheta23[3.6/357.3] Predicted value of {theta} for the year 2023.0degstat.valuefloatrho23[0.085/2.776] Predicted value of {rho} for the year 2023.0arcsecstat.valuefloatJ/AJ/155/215/table7Speckle interferometric measurements of other pairsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscDiscoverer designationmeta.idcharCompComponent designationmeta.code.multipcharn_WDSNote(s) on the WDS system (2)meta.notecharEpoch[5.8614/10.5916] Epoch of observation (expressed as a fractional Julian year, -2000)yrtime.epochfloattheta[0.1/355.4]? Position angle {theta} (1)degpos.posAngfloatnullableu_theta[:] Uncertainty flag on theta (:=measure with reduced accuracy due to observing conditions)meta.code.error;pos.posAngcharrho[0.047/8.106]? Separation {rho}arcsecpos.angDistancefloatnullableu_rho[:] Uncertainty flag on rho (:=measure with reduced accuracy due to observing conditions)meta.code.errorcharN[1/5] Number of observation(s) contained in the mean positionmeta.numberint_RAPosition from The Washington Visual Double Star Catalog (Mason+ 2001-2014, Cat. B/wds) (right ascension part)degpos.eq.ra;meta.main_DEPosition from The Washington Visual Double Star Catalog (Mason+ 2001-2014, Cat. B/wds) (declination part)degpos.eq.dec;meta.mainJ/AJ/155/215/table2Speckle interferometric measurements of red dwarf pairsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscDiscoverer designationmeta.idcharCompComponent designationmeta.code.multipcharn_WDSNote(s) on the WDS system (2)meta.notecharEpoch[5.8614/10.5916] Epoch of observation (expressed as a fractional Julian year, -2000)yrtime.epochfloattheta[0.1/355.4]? Position angle {theta} (1)degpos.posAngfloatnullableu_theta[:] Uncertainty flag on theta (:=measure with reduced accuracy due to observing conditions)meta.code.error;pos.posAngcharrho[0.047/8.106]? Separation {rho}arcsecpos.angDistancefloatnullableu_rho[:] Uncertainty flag on rho (:=measure with reduced accuracy due to observing conditions)meta.code.errorcharN[1/5] Number of observation(s) contained in the mean positionmeta.numberint(O-C)t[-17.6/43.1]? The O-C position angle residual to the orbit or rectilinear fit referenced in column Ref (not in Table 7)degstat.fit.residual;pos.posAng;stat.fit.omcfloatnullable(O-C)r[-0.247/0.058]? The O-C separation residual to the orbit or rectilinear fit referenced in column Ref (not in Table 7)arcsecstat.fit.residual;pos.angDistance;stat.fit.omcfloatnullableRefReference for the orbit or rectilinear fit (not in Table 7)meta.ref;pos.framecharBibcodeBibcode of the reference (not in Table 7)meta.bib.bibcodecharComComment on the reference (not in Table 7)meta.notechar_RAPosition from The Washington Visual Double Star Catalog (Mason+ 2001-2014, Cat. B/wds) (right ascension part)degpos.eq.ra;meta.main_DEPosition from The Washington Visual Double Star Catalog (Mason+ 2001-2014, Cat. B/wds) (declination part)degpos.eq.dec;meta.mainJ/AJ/155/215/table3New orbital elementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS designation (HHMMm+DDMM, J2000)meta.id;meta.maincharDiscDiscovery designationmeta.idcharONameOther designationmeta.idcharPer[5.075/34.582] Periodyrtime.periodfloate_Per[0.016/2.6] Uncertainty in Peryrstat.errorfloata[0.1981/0.87] Semimajor axisarcsecphys.angSize.smajAxis;src.orbitalfloate_a[0.0021/0.033] Uncertainty in aarcsecstat.errorfloati[20/143] Inclinationdegsrc.orbital.inclinationfloate_i[0.66/15] Uncertainty in idegstat.errorfloatOmega[117/303] Longitude of node {Omega} (J2000)degsrc.orbital.nodefloate_Omega[0.48/22] Uncertainty in Omegadegstat.errorfloatT0[1988.39/2023.21] Epoch of periastron passage (expressed as a fractional Julian year)yrtime.epochdoublee_T0[0.036/1.1] Uncertainty in T0yrstat.errorfloate[0.183/0.839] Eccentricitysrc.orbital.eccentricityfloate_e[0.008/0.056] Uncertainty in estat.errorfloatomega[19.5/359] Longitude of periastron {omega}degsrc.orbital.periastronfloate_omega[0.75/25] Uncertainty in omegadegstat.errorfloatGrade[3/5] Orbit grade (see Hartkopf et al. 2001AJ....122.3472H) (1)meta.code.qualintRefReference for a previous orbit determination, if one existsmeta.ref;pos.framecharBibcodeBibcode of the referencemeta.bib.bibcodechar