Wide binaries in Tycho-Gaia: search method J/MNRAS/472/675 ivo://CDS.VizieR/J/MNRAS/472/675 doi:10.26093/cds/vizier.74720675 CDS Andrews J.J. Chaname J. Agueros M.A. 2024-08-17T20:21:11Z 2017-11-21T08:00:25Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr multiple-stars astrometry visible-astronomy trigonometric-parallax We mine the Tycho-Gaia astrometric solution (TGAS) catalogue for wide stellar binaries by matching positions, proper motions and astrometric parallaxes. We separate genuine binaries from unassociated stellar pairs through a Bayesian formulation that includes correlated uncertainties in the proper motions and parallaxes. Rather than relying on assumptions about the structure of the Galaxy, we calculate Bayesian priors and likelihoods based on the nature of Keplerian orbits and the TGAS catalogue itself. We calibrate our method using radial velocity measurements and obtain 7108 high-confidence candidate wide binaries with projected separations s<~1pc. The normalization of this distribution suggests that at least 0.7 per cent of TGAS stars have an associated, distant TGAS companion in a wide binary. We demonstrate that Gaia's astrometry is precise enough that it can detect projected orbital velocities in wide binaries with orbital periods as large as 10^6^yr. For pairs with s<~4x10^4^au, characterization of random alignments indicates our contamination to be 5-10 per cent. For s<~5x10^3^au, our distribution is consistent with Opik's law. At larger separations, the distribution is steeper and consistent with a power-law P(s){propto}s^-1.6^; there is no evidence in our data of any bimodality in this distribution for s<~1pc. Using radial velocities, we demonstrate that at large separations, i.e. of order s~1pc and beyond, any potential sample of genuine wide binaries in TGAS cannot be easily distinguished from ionized former wide binaries, moving groups or contamination from randomly aligned stars. 2017MNRAS.472..675A https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/472/675 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/337 : Gaia DR1 (Gaia Collaboration, 2016) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/472/675 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/472/675 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/472/675 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/472/675 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/472/675 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/472/675 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/472/675/table2 (Catalogue of wide binaries in Tycho-Gaia) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/472/675/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/472/675/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/472/675/table2? 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30048 30055 30059-30060 30065 30067 30071-30072 30096-30097 30103 30112 30116 30131 30150 30152 30154 30161 30170 30177 30181-30182 30195 30199 30224 30245 30247-30248 30265 30267 30274 30288 30292 30301-30302 30304 30307 30334 30348 30366 30398 30405 30411-30412 30418 30420 30423 30429 30438 30440 30462 30471 30489 30496 30499 30508 30525 30531 30555 30558 30566 30572 30575-30576 30592 30600 30605-30607 30611-30613 30617-30618 30644 30649 30659 30664 30666-30667 30677 30681 30693 30695-30696 30706 30711 30716 30718 30728 30743 30753 30789 30806 30851 30856 30859 30870 30916 30932 30935 30957 31027 31083 31090 31093 31102 31135 31150 31152 31154 31171 31181 31184 31194 31205 31212 31219 31226 31232 31249 31257-31258 31260 31284 31292 31301 31303 31316 31321 31329 31348 31355 31363 31371 31441 31445 31467 31478 31487-31488 31499 31517 31554 31594-31595 31603 31607 31611 31660 31671 31693-31694 31699 31703 31706 31719 31736 31761 31768 31788 31790 31794 31796 31800 31814 31824 31854 31860 31867 31872 31875 31885-31887 31891 31911 31917-31919 31928 31936 31938 31946 31961 31965 31976 31995 32007 32013 32016 32028 32066 32069 32072 32082-32083 32091-32092 32108 32112 32115 32124 32137 32162 32164 32166 32170 32176 32178 32180 32184 32194 32199 32221 32224 32227 32250 32253 32255 32276 32281 32286 32297 32311 32321 32326 32340 32349-32350 32353 32372 32391 32420 32426 32430-32431 32440 32445 32447-32448 32457 32463 32468 32471-32472 32474-32476 32478 32483 32485 32493-32494 32504 32519 32522-32523 32525 32529 32535 32537 32548-32550 32554 32563 32571-32572 32574-32575 32582 32587 32593 32601-32602 32609 32612 32619 32622 32624 32626-32627 32642 32648-32649 32651 32657 32660-32661 32669 32673 32678-32681 32684 32694 32696-32698 32704 32723 32737 32744 32747 32757 32773-32774 32782 32785 32798 32808 32810 32831 32834 32838 32843 32845 32856 32862 32874 32878 32880 32883 32887 32896 32906 32917 32919 32929 32954 32962 32976 32984 32998 33000 33002 33041-33042 33044 33046 33050 33053 33069 33079-33080 33090 33097 33099 33102 33114 33118 33140 33154 33160 33171 33177 33179 33188 33213 33218 33225 33233 33236 33238 33245 33247 33256 33267 33278 33280-33281 33285 33288 33298 33312 33322 33333 33335 33338 33343-33344 33364 33383 33385 33397 33416 33447 33457-33458 33464 33469 33472 33474 33486 33491 33500 33502 33515 33521 33525-33526 33531 33540 33544 33546 33554 33562 33579 33584 33589 33600 33611 33640 33646 33653 33662 33667 33681 33688 33691 33708 33739 33745-33746 33759 33768 33773 33778 33790 33813 33820 33844-33845 33868 33875 33879-33880 33882-33883 33889-33890 33908-33909 33923 33932 33939 33943 33950-33951 33961 33967 33969 33972 33986-33988 33992 33997 34006 34017 34034 34037-34038 34044 34046-34047 34062 34074 34077 34080 34091 34095 34106 34114 34117 34124-34126 34130 34136 34140 34146 34151 34159-34160 34170 34180-34182 34186 34188 34191 34196 34198-34199 34205 34212 34222 34230 34233-34235 34240 34245 34252 34264-34265 34269 34276-34277 34282 34287 34289 34293 34298 34303 34306 34322 34326 34336 34364 34369 34374 34396 34400 34426 34430 34445 34466 34487 34491 34493 34509 34517 34524 34536 34538-34539 34541 34546 34555-34556 34562 34575 34585 34588 34600 34602 34611-34612 34616-34617 34620 34626 34632 34638 34645 34649 34656 34661 34663 34668 34684-34685 34697 34703 34711-34713 34720 34725 34733 34740 34765 34784 34794 34796 34813 34835 34839 34844 34849 34853 34871 34877 34898 34905 34907 34914 34936 34957 34969 34971 34988 34996 35017 35032 35047 35051 35076 35092 35106 35122 35136 35149-35150 35184 35202 35210 35213 35220 35235 35241 35248 35264 35318-35319 35333 35346 35350 35358 35381 35383 35385 35414 35425 35431 35466 35478 35483 35500-35501 35511 35530 35551 35557 35564 35583-35584 35602 35624 35635 35649 35675 35694 35699-35700 35704 35713 35739-35740 35745-35746 35750-35751 35782 35790 35795 35802-35803 35822-35823 35856 35877 35881 35898-35899 35904 35907-35908 35914 35933 35935 35953-35954 35961 35965 35968 35982 35984-35986 35992 35998 36019 36053 36057 36061 36063 36085 36092 36096 36100 36107 36115 36148-36149 36156 36163 36171 36177-36178 36181 36184 36187 36210 36214 36241 36249 36257 36259 36273 36277 36312 36320 36337 36339 36341 36382 36387 36418 36428 36444 36484 36490 36494 36499 36516 36527 36568 36584 36635 36648 36666 36680 36691 36696 36703 36725 36750 36771 36774 36800 36808-36809 36815 36819 36834 36864 36866 36868 36874 36886 36888 36907 36914 36917 36924 36943 36956-36957 36960 36964 36969 36980 36994 36997-36998 37001 37038 37044 37047 37049-37052 37063 37067 37069 37078-37079 37087 37094-37095 37102 37109-37110 37117 37119 37133 37139 37145 37147 37150-37151 37155 37158 37167 37172 37181 37185 37188 37198 37204-37205 37207 37225 37227 37239-37240 37242 37245 37252-37253 37257 37262-37265 37268 37271 37277 37279 37283 37285 37291-37292 37294 37297 37300 37304-37305 37308 37316-37318 37320 37323 37327 37332 37335 37346 37350 37354 37360 37362-37363 37366 37369 37373 37375 37379 37388-37389 37394 37406-37407 37410-37411 37418 37428 37430 37432 37437 37443-37444 37447 37449 37461 37474 37477 37479 37486 37488 37491 37500 37531 37542-37543 37547-37549 37553 37561 37572 37577 37583 37588-37589 37597 37600 37606-37607 37612 37616 37618 37636-37637 37640-37642 37644-37645 37649-37651 37656 37658-37660 37672 37674 37679-37681 37685 37687 37698 37701-37702 37707-37708 37728-37729 37731-37732 37743-37744 37757 37763 37771 37775 37777 37780-37781 37783 37797 37799 37801 37805-37807 37809 37811 37815-37816 37818-37819 37825 37828 37830 37832 37840 37845-37846 37848 37850-37851 37853-37854 37857 37863-37864 37868 37871 37873-37874 37879 37883 37885-37888 37893 37902 37904 37907 37910 37925 37928 37932-37934 37936 37939-37940 37944 37947 37951 37957 37961-37962 37964-37966 37969-37971 37973 37975 37981-37982 37986 37995 38000 38006 38008-38009 38012 38014 38020 38022 38026 38029 38038 38050 38055-38056 38059 38061 38069 38072 38081 38090 38094 38097 38105 38107 38111 38114 38118 38121 38123 38126 38131 38138 38140 38145-38147 38151-38152 38159-38160 38162 38169-38170 38172 38174-38175 38180 38183 38191 38198 38201 38205 38212 38222 38225 38232 38234 38239-38240 38247-38248 38250 38255-38256 38258-38260 38262 38265-38266 38268-38269 38277 38282 38286 38289 38305 38309 38312-38314 38317-38319 38321 38323 38325-38327 38334-38336 38347-38349 38353 38357 38361 38373 38376 38400 38402 38405 38407 38409 38413-38414 38417 38422 38427 38433 38436 38439 38441 38445 38453-38454 38457 38460 38468 38475 38482 38484 38501 38504 38512-38513 38519-38520 38528 38532-38534 38537 38539 38548 38550-38551 38554-38555 38569 38578 38583 38591-38592 38595-38596 38601-38602 38608 38615 38624-38626 38628-38629 38639-38642 38647-38648 38670 38672 38681 38683 38686-38687 38692 38702-38703 38706 38708 38710 38712 38714-38716 38718 38727-38728 38735 38743 38749 38762 38765 38779 38781 38784 38789 38791 38795 38800 38802-38803 38807 38811 38820 38864 38879 38900 38906 38912-38913 38916 38919 38921 38928-38929 38933 38946 38953 38955 38963 38969 38972-38974 38976 38979 38986 38989 38991 38998 39003-39006 39012 39016 39020 39028 39031 39037 39043 39052-39053 39055 39059-39060 39062 39065 39075-39076 39095 39107 39110 39115 39118 39122-39123 39126 39130 39132 39134 39138 39140 39152-39154 39160 39170 39177-39178 39180-39181 39183-39184 39188-39190 39196 39198 39201-39202 39205 39208 39211-39213 39216-39217 39219 39221 39227 39235 39240-39241 39244 39248 39251 39253-39256 39259 39263-39264 39266 39275 39280 39282-39283 39286 39288-39289 39293 39300 39303-39305 39309 39313-39314 39316-39317 39320 39324-39326 39328-39329 39341 39353 39355 39362 39364 39368-39370 39380-39381 39385 39388 39390-39391 39395 39408 39410 39412-39413 39421 39438 39444 39456-39457 39459 39468 39471 39475 39486 39488 39490 39496 39500 39503 39505-39506 39509 39513 39519-39520 39548 39550 39555 39566 39569-39570 39578 39587-39588 39594 39605-39608 39610 39613 39620 39627 39638 39642 39645 39648-39649 39656 39670-39671 39678 39680 39687-39688 39691 39699 39704 39709 39711-39712 39721 39723 39726-39727 39738 39740 39744 39746 39750-39751 39757 39760 39762 39766 39771 39773 39775 39779 39785 39790-39791 39796 39806 39810 39812 39814 39819-39820 39826-39827 39834-39835 39841 39843-39845 39876-39877 39879 39881 39896-39898 39908 39916 39920-39921 39923 39929 39940 39942-39943 39952-39954 39963 39977 39980 39982 39984-39986 39988-39989 39991 39994-39995 40001 40012 40016-40017 40021 40024 40027 40033 40040 40062 40076 40078-40079 40082 40094-40095 40106 40109 40116-40117 40119 40127 40130 40141 40152 40156 40158 40181-40182 40186 40188 40199 40210 40212 40221 40223 40235-40236 40254 40278 40294 40300 40306 40311 40321 40326 40340 40356 40363 40365 40371-40372 40388 40417 40423 40449 40471-40472 40475 40479 40484 40489 40494 40501 40537 40543-40544 40556 40559 40565 40581 40587 40596 40600 40614 40624-40625 40654 40674 40677 40708 40727 40729 40737 40748 40754 40786 40805 40818-40819 40867 40873 40881 40893-40894 40907 40923 40950 40960 40967 40975 40982 40985 40993-40994 40998-40999 41013 41017 41021 41023-41024 41033 41045 41053-41055 41058-41059 41069 41075 41079-41080 41083 41086 41089 41101-41102 41110 41118 41121 41150 41154-41156 41164-41165 41168 41171 41178 41187 41193 41200-41201 41203-41204 41212 41215-41216 41222 41228 41238 41242-41243 41252 41254 41257 41259-41261 41263 41268 41271 41275 41277-41278 41295 41298 41302 41306-41307 41312-41313 41319-41320 41324 41331 41339 41354 41357 41363-41364 41366-41367 41375 41382 41388-41389 41397 41407 41414 41417 41420-41421 41425 41429 41436 41438 41442 41461 41470 41474-41475 41478 41484 41491 41495 41506 41508 41516 41520 41523 41525 41529 41540 41543-41544 41552 41555 41558-41560 41562-41563 41571-41573 41578 41580 41583-41585 41589 41591 41593-41594 41600 41603-41604 41609-41610 41612 41618 41623-41624 41626 41630 41634 41637 41640 41642 41644 41646 41652 41654 41659 41663-41664 41670 41673 41679 41682 41685 41689 41691 41701 41703 41706 41709 41714-41715 41723 41730 41733 41737-41738 41744 41746 41748 41755-41756 41758-41760 41764-41766 41768 41770 41773-41774 41781 41784 41788 41791 41795 41814-41816 41820-41822 41824 41826 41828 41836-41838 41842 41852 41854 41856 41859 41862 41864 41869 41874 41878 41880-41882 41884 41888-41889 41900-41901 41903 41905 41908 41912 41914-41916 41923 41931 41933 41944-41945 41964-41965 41973 41975 41979 41992 42015 42018 42058 42063 42110 42115 42117 42128 42133 42143 42153 42162 42197 42199 42207 42223 42243-42244 42256 42258 42266 42268 42272 42280 42284 42286-42288 42308-42309 42330 42338-42339 42348 42369 42382 42391 42403 42410-42411 42419 42421 42424-42425 42428 42430 42436 42438 42441 42462 42465 42481 42484 42489 42491 42499 42505 42508 42510 42513 42524 42527 42532-42533 42542 42546-42547 42554 42557-42558 42565 42572 42580 42583 42590-42591 42600 42606-42607 42611 42642-42644 42646 42649 42653 42656 42658 42660-42662 42665-42666 42678-42679 42682 42688 42691-42692 42702 42704 42707-42708 42710 42717 42734-42735 42738-42739 42742 42756 42763 42782 42786 42796 42799 42804 42811 42821 42847 42850 42855 42884 42889 42891 42896 42899 42912 42918-42919 42925 42928-42929 42934 42943 42949 42953 42956 42969 42979 42985 42990 43012 43014-43015 43017 43041 43050-43051 43064 43067 43072-43073 43087 43107 43115 43117-43118 43127 43135 43137 43139 43141-43142 43146 43152 43169 43171-43173 43178 43186 43199 43201-43202 43210 43212 43219 43232 43245 43250-43251 43258 43262 43269 43291 43301-43302 43304-43305 43328 43333-43334 43342 43345-43346 43352 43355 43360 43369 43388 43390 43392 43399 43412 43421 43427 43459 43477 43488 43491 43497 43500-43501 43509 43511 43518 43520 43524 43529 43545 43558-43559 43563 43573 43583 43590-43591 43595 43602 43608 43616 43620 43631 43645 43660 43671 43680 43683-43684 43698 43705-43706 43729 43734-43735 43738 43740 43745 43747 43768 43770 43773 43781 43783 43791 43798 43800 43803 43807 43816 43821 43825 43836 43860 43876 43912 43919 43924 43933 43935 43947 43962 43981-43982 44005-44006 44008 44017 44024 44038 44043 44063 44066-44067 44076 44084 44096-44097 44101 44113 44116-44117 44119 44122 44128 44155 44157 44170 44177 44202 44207 44211 44233 44258 44275 44288 44290 44295 44297 44307 44312 44317-44318 44337 44353 44360-44361 44371 44378 44380 44389-44390 44400 44404 44421-44423 44430 44439 44450 44461 44466 44470 44477 44482 44485 44495 44498 44500 44506 44537 44542 44546 44548 44551-44552 44558 44561 44566 44575 44581 44584 44629 44637 44640 44651-44653 44655 44678 44681 44701 44703 44730 44735 44746 44759 44761 44767 44779 44781 44795 44804-44805 44810 44817-44818 44820 44837 44881 44896 44912 44917 44921 44923 44928 44946 44981 44993 45006 45011 45056 45070 45078 45082 45099 45103 45110 45112-45113 45120 45122 45141 45145 45157 45159 45165 45179 45199 45203 45205 45207 45221 45223 45227 45233 45239 45245 45248 45254 45258 45261 45264 45268 45276 45278 45291 45304 45308 45323 45329 45333 45336 45339 45360 45363 45375 45388 45391 45395 45409 45416 45418 45422-45423 45435 45445-45446 45449 45451 45464 45475 45485 45496-45497 45501 45503 45506-45507 45511 45523 45525 45530 45535 45547 45552-45553 45569 45575 45580 45585 45593 45609 45615 45617 45636-45637 45644 45646-45647 45654-45656 45663 45665 45675 45687 45723 45730-45731 45735-45736 45813 45818 45840 45844 45856 45863 45870 45879-45880 45885 45893-45894 45896 45910 45912 45926 45932 45946 45953-45954 45958 45965 45994 45997 46000 46022 46032 46034-46035 46038 46042 46045 46051 46063 46080 46086 46088 46102 46108 46119 46121 46129 46133 46142 46152 46155 46170 46181 46223-46224 46259 46299 46311 46313 46321 46324 46346-46347 46355 46384 46386 46407 46418 46427 46516 46525 46529 46582 46590 46596 46598 46625 46627 46630 46645 46653 46655 46676 46688 46699-46700 46716 46718 46720 46737 46752 46756 46759 46764 46771 46778 46780-46781 46796 46813 46828 46846 46854 46856-46857 46860 46862 46876 46893-46894 46916 46937 46961 46977 46991 47004 47034 47039 47065 47105-47106 47111 47113 47136 47162-47163 47178 47184 47189 47194 47197-47198 47206 47215 47226 47237 47246 47260 47288-47289 47301 47303 47305 47309-47310 47323-47326 47335 47338 47347 47349 47352-47353 47362 47366 47368 47382-47383 47398 47412 47416 47420 47446 47453-47454 47459 47471 47486 47496 47498 47510 47515 47519 47521-47522 47529 47546 47586 47623 47679 47695-47696 47722 47736 47761 47772 47784 47788 47792-47793 47798-47799 47816 47828 47833 47845 47849 47855 47859 47866 47869 47874 47877 47885 47897 47905 47918 47933 47947 47953 47958 47993 48024 48036 48040 48044 48050 48066 48068 48071 48078 48084 48091 48093 48099 48111 48113 48121-48122 48128 48132 48134 48152 48162 48166 48177 48207 48223 48234 48239 48249 48256 48258 48272 48274 48284 48301 48310 48313-48314 48330 48436 48444 48473 48481-48482 48497 48521 48530 48535 48539 48548 48551 48567 48581 48603 48619 48629 48639 48656 48658 48685 48689 48693 48705 48712 48722 48756 48761 48780 48782 48786 48803 48820 48840 48845 48847 48861 48869 48901 48951 48964 48970 48983 49004 49030 49053 49070 49103 49113 49122 49134 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/472/675?format=ascii Optical default J/MNRAS/472/675/table2 Catalogue of wide binaries in Tycho-Gaia recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int TGAS Display the TGAS data for the 2 stars meta.ref.url char Gaia-ID1 Gaia ID for primary meta.id TYC-ID1 Tycho ID for primary meta.id;meta.main char RAdeg1 Right ascension (ICRS) at epoch 2015.0 for primary deg pos.eq.ra;meta.main DEdeg1 Declination (ICRS) at epoch 2015.0 for primary deg pos.eq.dec;meta.main pmRA1 Proper motion (RA part) for primary mas/yr pos.pm;pos.eq.ra double pmDE1 Proper motion (DE part) for primary mas/yr pos.pm;pos.eq.dec double plx1 Parallax for primary mas pos.parallax.trig float Gaia-ID2 Gaia ID for secondary meta.id TYC-ID2 Tycho ID for secondary meta.id.assoc char RAdeg2 Right ascension (ICRS) at epoch 2015.0 for secondary deg pos.eq.ra DEdeg2 Declination (ICRS) at epoch 2015.0 for secondary deg pos.eq.dec pmRA2 Proper motion (RA part) for secondary mas/yr pos.pm;pos.eq.ra double pmDE2 Proper motion (DE part) for secondary mas/yr pos.pm;pos.eq.dec double plx2 Parallax for secondary mas pos.parallax.trig float P(logflat) [0/1] Posterior probability of a genuine binary using the log-flat prior (1) stat.fit.goodness double P(powerlaw) [0/1] Posterior probability of a genuine binary using the power-law prior (1) stat.fit.goodness double Sep Angular separation of pair arcsec pos.angDistance float Simbad Simbad column added by the CDS meta.ref.url char