SOAR Speckle Survey, nearby hierarchical systems J/AJ/165/180 ivo://CDS.VizieR/J/AJ/165/180 doi:10.26093/cds/vizier.51650180 CDS Tokovinin A. 2023-12-12T01:21:18Z 2023-09-29T06:51:31Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr multiple-stars infrared-photometry visible-astronomy photometry interferometry There should be about 10000 stellar hierarchical systems within 100pc with primary stars more massive than 0.5M{sun}, and a similar amount of less-massive hierarchies. A list of 8000 candidate multiples is derived from wide binaries found in the Gaia Catalog of Nearby Stars where one or both components have excessive astrometric noise or other indicators of inner subsystems. A subset of 1243 southern candidates were observed with high angular resolution at the 4.1m Southern Astrophysical Research Telescope, and 503 new pairs with separations from 0.03" to 1" were resolved. These data allow estimation of the inner mass ratios and periods, and help to quantify the ability of Gaia to detect close pairs. Another 621 hierarchies with known inner periods come from the Gaia catalog of astrometric and spectroscopic orbits. These two nonoverlapping groups, combined with existing ground-based data, bring the total number of known nearby hierarchies to 2754, reaching a completeness of ~22% for stars above 0.5M{sun}. Distributions of their periods and mass ratios are briefly discussed, and the prospects of further observations are outlined. 2023AJ....165..180T https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/180 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020) I/357 : Gaia DR3 Part 3. Non-single stars (Gaia Collaboration, 2022) J/A+A/382/118 : Spectroscopic sub-systems in multiple stars (Tokovinin+, 2002) J/A+A/450/681 : Companions to close spectroscopic binaries (Tokovinin+, 2006) J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010) J/AJ/147/87 : From binaries to multiples II. Statistic data (Tokovinin, 2014) J/ApJS/235/6 : Updated Multiple Star Catalog; Sept 2021 (Tokovinin, 2018) J/ApJS/247/66 : SUPERWIDE; wide binaries in Gaia & SUPERBLINK (Hartman+, 2020) J/A+A/649/A6 : Gaia Catalogue of Nearby Stars (Gaia collaboration, 2021) J/AJ/162/192 : SOAR TESS survey II. Impact stellar companions (Ziegler+, 2021) J/AJ/163/161 : Spectro. of Subsystems Multiple Stars. VIII. (Tokovinin, 2022) J/AJ/164/58 : Speckle Interferometry at SOAR in 2021 (Tokovinin+, 2022) J/AJ/163/178 : Solar Neighborhood. XLIV. M dwarfs with SOAR (Vrijmoet+, 2022) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/180 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/180 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/180 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/180 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/180 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/180 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/165/180/table1 (Results of the SOAR Speckle Survey) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/180/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/180/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/180/table1? 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46463 46488 46505 46531 46538 46560 46596-46597 46637 46663 46669 46726 46731 46773 46806 46822 46839 46885 46913 46927 46938 46962 46976 46978 46990 47027 47041 47048 47069 47082 47084 47118 47200 47226 47242 47256 47269 47296 47338 47400 47417 47426 47439 47442 47482 47517 47586 47607 47621 47672 47686 47697 47703 47705 47728 47752 47755 47771 47829 47844 47859 47861 47878 47891 47959 47980-47981 47998 48004 48078 48082 48090 48126 48189 48204 48226 48234 48259 48273 48283 48301-48302 48309 48363 48366 48405 48419 48547 48554 48602 48612 48643 48653 48709 48731 48751 48757 48773 48786 48793 48797 48848 48856 48860 48889 48904 48959 49063 49097 49125 49151 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/180?format=ascii Optical Infrared default J/AJ/165/180/table1 Results of the SOAR Speckle Survey Comp Component letter meta.id.part;meta.main char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int MSC MSC code identifier (J2000) meta.id.part;meta.main char RAJ2000 [0/360] Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-89/20] Declination (J2000) deg pos.eq.dec;meta.main Date [21/24] Date (Julian year; JY-2000) yr time.epoch float PA [0/360] Position angle (1) deg pos.posAng float Sep [0/3.64] Separation arcsec pos.angDistance float DmagI [-0.2/6.6] Magnitude difference mag phot.mag;arith.diff float Flag Flag for quadrant, noisy data, filter (2) meta.code.error char rho [0/0.13] Resolution limit ({rho}_min_) arcsec spect.resolution float dI0.15 [0.5/4.98] Magnitude limit at 0.15" sep. mag phot.mag float dI1 [0.0/6.18] Magnitude limit at 1" sep. mag phot.mag float NSS NSS solution code (--- if not in NSS) meta.code char Syst System identifier (UR if unresolved) meta.id char