Speckle Interferometry at SOAR in 2021 J/AJ/164/58 ivo://CDS.VizieR/J/AJ/164/58 doi:10.26093/cds/vizier.51640058 CDS Tokovinin A. Mason B.D. Mendez R.A. Costa E. 2022-12-16T22:28:17Z 2022-11-08T07:04:00Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr multiple-stars astrometry infrared-photometry visible-astronomy photometry The speckle interferometry program at the the 4.1m Southern Astrophysical Research Telescope (SOAR), which started in 2008, now has accumulated over 30300 individual observations of 12700 distinct targets. Its main goal is to monitor orbital motion of close binaries, including members of high-order hierarchies and low-mass dwarfs in the solar neighborhood. The results from 2021 are published here, totaling 2623 measurements of 2123 resolved pairs and nonresolutions of 763 targets. The median measured separation is 0.21", and 75 pairs were closer than 30mas. The calibration of scale and orientation is based on the observations of 103 wide pairs with well-modeled motion. These calibrators are compared to the latest Gaia data release, and minor (0.5%) systematic errors were rectified, resulting in accurate relative positions with typical errors on the order of 1mas. Using these new measurements, orbits of 282 binaries are determined here (54 first determinations and 228 corrections). We resolved for the first time 50 new pairs, including subsystems in known binaries. A list of 94 likely spurious pairs unresolved at SOAR (mostly close Hipparcos binaries) is also given. 2022AJ....164...58T https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/164/58 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to B/wds : The Washington Visual Double Star Catalog (Mason+ 2001-2020) J/AJ/139/743 : Speckle interferometry in 2008-09 (Tokovinin+, 2010) J/AJ/143/42 : Speckle interferometry with SOAR in 2010&2011 (Hartkopf+, 2012) J/AJ/144/56 : Speckle interferometry at SOAR in 2012 (Tokovinin+, 2012) J/AJ/147/123 : Speckle interferometry with SOAR 2012-2013 (Tokovinin+, 2014) J/AJ/150/151 : DSSI observations binaries. VI. Measures in 2014 (Horch+, 2015) J/AJ/150/50 : Speckle interferometry at SOAR in 2014 (Tokovinin+, 2015) J/A+A/597/A47 : CARMENES input catalogue of Mdwarfs II (Cortes-Contreras+ 2017) J/AJ/153/212 : Observations of binary stars at WIYN telescope (Horch+, 2017) J/AJ/155/235 : Speckle interferometry at SOAR in 2016&2017 (Tokovinin+, 2018) J/AJ/157/56 : DSSI observations binary & trinary star systems (Horch+, 2019) J/AJ/158/148 : Photometry of beta Lyr by BRITE satellites.II (Rucinski+, 2019) J/AJ/158/222 : Orbits of subsystems in multiple stars. VI. (Tokovinin, 2019) J/AJ/160/251 : Radial velocities & orbital, 5 triple stars (Tokovinin+, 2020) J/AJ/160/7 : 2019 SOAR speckle interferometry of binaries (Tokovinin+, 2020) J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020) J/ApJS/247/66 : SUPERWIDE; wide binaries in Gaia & SUPERBLINK (Hartman+, 2020) J/ApJS/254/42 : Hipparcos-Gaia (EDR3) Catalog of Accelerations (Brandt, 2021) J/AJ/161/134 : Survey of stellar & planetary comp. within 25pc (Hirsch+, 2021) J/AJ/161/295 : Obs. Differential Speckle Survey Instrument. X. (Horch+, 2021) J/AJ/161/144 : Inner & outer orbits in 13 multiple systems (Tokovinin, 2021) J/AJ/162/41 : Speckle interferometry at SOAR in 2020 (Tokovinin+, 2021) J/AJ/162/192 : SOAR TESS survey II. Impact stellar companions (Ziegler+, 2021) J/AJ/163/178 : Solar Neighborhood XLIV. Mdwarfs with SOAR (Vrijmoet+, 2022) J/AJ/163/161 : Spectro. Subsystems in Multiple Stars. VIII. (Tokovinin, 2022) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/164/58 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/164/58 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/164/58 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/164/58 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/164/58 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/164/58 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/164/58/table2 (Measurements of double stars at SOAR) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/58/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/58/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/58/table2? GET text/xml+votable 180.0 50000 true 0.1053 -47.1796 0.005555555555555556 Cone search capability for table J/AJ/164/58/table3 (Unresolved stars) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/164/58/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/164/58/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/164/58/table3? GET text/xml+votable 180.0 50000 true 0.2692 -48.8099 0.005555555555555556 5/10614 11935 6/33 65 90 155 188 215 292 321 336 359 368 377 383 402 408 411 419 439 456 469 603 630 781 1024 1060-1061 1064 2058 4097 4099 4104 4106 4118 4128 4143 4158 4164 4184 4195 4206 4216 4240-4241 4250 4297 4316 4344 4353 4358 4405 4415 4427-4429 4452 4456 4468 4498 4566 4608 4640 4670 4690 4693 4698 4750 4777 4808 4875 4895 4904 4965 5167 5196 5217 6146-6147 6210 6242 8214 8235 8237 8243 8255 8345 8348 8357 8383 8409 8424 8430 8440-8441 8469 8610 8620 8667 8735 8764 8773 8919 8996 9249 10242 10246 10307 10402 12295 12298 12303 12311-12312 12330 12343 12346 12348 12362 12378 12390 12400-12401 12447 12454 12465 12467 12503 12526 12610 12616 12649 12671 12679 12701 12742 12795-12796 12826 12829 12833 12856 12865 12869 12882-12883 12890 12938 12960 12964 12976 13024-13025 13087 13115 13128 13480 14377 14390 16401 16445 16451 16459 16461 16502 16506 16508 16540 16569 16589 16594 16600 16622 16626 16633 16650 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45701 45704-45705 45708 45727 45741 45746-45747 45752 45770 45786 45791-45792 45794 45797 45799 45801 45823 45838 45843 45847 45854 45859 45873-45874 45878-45879 45886 45893 45918 45923 45930 45934 45940 45944 45954 45960 45966 45988 46010 46015-46016 46019 46076 46088 46123 46129 46171 46186 46197 46234 46247 46284 46305-46306 46308 46323 46333 46335 46387 46417 46425 46445 46458 46466-46467 46471 46473 46481 46484 46519 46524 46550 46570 46572 46574 46614 46630 46654 46681 46697-46698 46711 46721-46722 46749 46764 46768 46776 46780 46790 46809-46810 46818 46845 46854 46893 46914 46921 46944 46958 46977 46984 46991 46998 47044 47054 47061 47067 47088 47105 47109 47120 47123 47125 47133 47161 47167 47207 47211 47220 47232 47235 47242 47246 47249-47250 47253-47254 47260 47275 47286 47292-47293 47302 47310 47328 47345 47352-47353 47357-47358 47366 47388 47397-47398 47430 47433 47437 47459 47495 47532 47544 47547 47569 47576-47577 47579-47580 47584 47588 47630 47632 47634 47652 47663 47674 47722 47732 47734 47737 47739 47756 47760 47762 47771-47772 47802 47811 47819 47821 47863 47869 47872 47879 47911 47919 47926 47930-47932 47943 47948 47993-47994 48021 48029 48034 48037-48038 48053 48061 48064 48066 48093-48095 48101 48104 48117 48120 48122 48125 48134 48136 48143 48146 48166 48176 48179 48181 48186 48191 48213 48226 48231 48242-48243 48254 48270 48276-48277 48282 48311 48317 48345 48350 48361 48383 48405 48453 48457 48465 48497 48500 48535 48552 48591 48595 48597 48599 48644 48651 48681 48709 48745 48749 48763 48784 48788 48798 48804 48810 48821 48826 48845 48852 48856-48857 48874 48885 48985 48992 48997 49006 49015 49047 49065 49068 49077 49101 49113 49121 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/164/58?format=ascii Optical Infrared default J/AJ/164/58/table2 Measurements of double stars at SOAR Simbad Simbad column added by the CDS meta.ref.url char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int WDS WDS Idenfitication meta.id;meta.main char primary Dis Discoverer Designation meta.id char OName Other name meta.id char RAJ2000 [0/360] Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-89/30] Declination (J2000) deg pos.eq.dec;meta.main Epoch [2018/2022] Epoch of observation yr time.epoch double Filt Filter used; I, V; y or HA instr.filter char Num [1/6] Number of observations used meta.number int PA [0/360] Position angle deg pos.posAng double err [0/28] Internal error in tangential direction mas stat.error float Sep [0.01/6.72] Separation arcsec pos.angDistance;src.orbital double e_Sep [0/28] The 1{sigma} uncertainty in Sep mas stat.error float Dmag [-1.9/8.2] Magnitude difference of pair mag phot.mag;arith.diff float f_Dmag Flag on Dmag (1) meta.code char O-CPA [-73.3/264]? The (O-C) in PA deg stat.fit.residual double nullable O-CSep [-0.23/0.39]? The (O-C) in Sep arcsec stat.fit.residual double nullable Ref Orbit reference code meta.ref char Vorb Preliminary or visual orbits elements (table6/7) meta.ref.url char
J/AJ/164/58/table3 Unresolved stars Dis Discoverer Designation meta.id char OName Other name meta.id char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int WDS WDS Idenfitication meta.id;meta.main char RAJ2000 [0/360] Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-86/30] Declination (J2000) deg pos.eq.dec;meta.main Epoch [2021/2022] Epoch of observation yr time.epoch double Filt Filter used; I, y and H{alpha} instr.filter char Num [1/5] Number of observations used meta.number int AR [0.028/0.095] Angular resolution arcsec pos.angResolution float Dmag0.15 [0/5.22] The 5{sigma} magnitude difference at 0.15" mag phot.mag;arith.diff float Dmag1 [0/6.85] The 5{sigma} magnitude difference at 1" mag phot.mag;arith.diff float
J/AJ/164/58/table6 Visual orbits with element's errors WDS WDS Idenfitication meta.id;meta.main char Grade [1/5] Orbit grade meta.code.qual;src.orbital int Ref Reference to previous orbit meta.ref char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Dis Discoverer Designation meta.id char Porb [1.7/345] Orbital period yr time.period double e_Porb [0/74.7] Orbital period error yr stat.error double T0 [1824/2137] Time of periastron passage yr time.epoch double e_T0 [0.002/40] Error of T0 yr stat.error double e [0/0.98] Orbital eccentricity src.orbital.eccentricity float e_e [0/0.21] Error of orbital eccentricity stat.error float a [0.03/2.05] Semi-major axis of the orbit arcsec phys.angSize.smajAxis float e_a [0.0005/0.09] Error on a arcsec stat.error float Omega [2.9/352] Position angle of the node deg src.orbital.node float e_Omega [0.1/110] Error of position angle of the node deg stat.error float omega [0/360] Longitude of periastron deg src.orbital.periastron float e_omega [0/120] Error of longitude of periastron deg stat.error float i [0/180] Inclination deg src.orbital.inclination float e_i [0/33] Error of inclination deg stat.error float
J/AJ/164/58/table7 Preliminary visual orbit WDS WDS Idenfitication meta.id;meta.main char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Dis Discoverer Designation meta.id char Porb [9/900] Orbital period yr time.period double T0 [1695/2274] Time of periastron passage yr time.epoch double e [0/0.98] Orbital eccentricity src.orbital.eccentricity float a [0.06/3.63] Semi-major axis of the orbit arcsec phys.angSize.smajAxis float Omega [5.8/355] Position angle of the node deg src.orbital.node float omega [0/356] Longitude of periastron deg src.orbital.periastron float i [0/180] Inclination deg src.orbital.inclination float Grade [3/5] Orbit grade meta.code.qual;src.orbital int Ref Reference to previous orbit meta.ref char
J/AJ/164/58/refs *Refences used for this work Ref Reference code meta.note char Author Main author meta.bib.author char Cat. Catalog in Vizier meta.note char Note Additional note or comment meta.note char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int BIB BIBcode meta.bib.bibcode char