J/ApJS/277/15ivo://CDS.VizieR/J/ApJS/277/15doi:10.26093/cds/vizier/bb-8n-fCDSJing Y.Mao T.-X.Wang J.Liu C.Chen X.2026-03-02T20:03:40Z2026-02-16T10:18:08ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetssurveysvisible-astronomyBinary stars are prevalent yet challenging to detect. We present a novel approach using convolutional neural networks (CNNs) to identify binary stars from low-resolution spectra obtained by the LAMOST survey. The CNN is trained on a data set that distinguishes binaries from single main-sequence stars based on their positions on the Hertzsprung-Russell diagram. Specifically, the training data labels stars with mass ratios between approximately 0.71 and 0.93 as intermediate-mass-ratio binaries, while excluding those beyond this range. The network achieves high accuracy with an area under the receiver operating characteristic curve of 0.949 on the test set. Its performance is further validated against known eclipsing binaries (97% detection rate) and binary stars identified by radial velocity variations (92% detection rate). Applying the trained CNN to a sample of one million main-sequence stars from LAMOST DR10 and Gaia DR3 yields a catalog of 468,634 binary stars, which are mainly intermediate-mass-ratio binaries given the training data. This catalog includes 115 binary stars located beyond 10 kpc from the Sun and 128 crossmatched with known exoplanet hosts from the NASA Exoplanet Archive. This new catalog provides a valuable resource for future research on the properties, formation, and evolution of binary systems, particularly for statistically characterizing large populations.2025ApJS..277...15Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/277/15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)I/357 : Gaia DR3 Part 3. Non-single stars (Gaia Collaboration, 2022)V/162 : LAMOST DR11 catalogs (Luo+, 2026)J/ApJS/90/83 : Binaries in NGC 3201 (Cote+, 1994)J/ApJ/559/1060 : Variables in 47 Tuc (Albrow+, 2001)J/AJ/140/184 : RAVE double-lined spectroscopic binaries (Matijevic+, 2010)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/A+A/563/A45 : Pleiades cluster membership probabilities (Sarro+, 2014)J/AJ/151/101 : Kepler Mission. VIII. False positives (Abdul-Masih+, 2016)J/AJ/151/68 : Kepler Mission. VII. EBs in DR3 (Kirk+, 2016)J/MNRAS/457/1028 : alpha Per cluster possible members (Sheikhi+, 2016)J/ApJ/836/5 : Abundances of LAMOST giants from APOGEE DR12 (Ho+, 2017)J/MNRAS/479/5491 : Absolute parameters of main-sequence stars (Eker+, 2018)J/AJ/156/18 : APOGEE Binary comp. of evolved stars (Price-Whelan+, 2018)J/ApJ/858/L7 : Red clump stars from LAMOST and APOGEE (Ting+, 2018)J/AJ/158/155 : SB cand. from the RAVE & Gaia DR2 surveys (Birko+, 2019)J/AN/340/386 : Spectroscopic binary candidate stars (Jack, 2019)J/other/RAA/19.64 : LAMOST sp. binaries & variable stars (Qian+, 2019)J/ApJS/249/18 : The ZTF catalog of periodic variable stars (Chen+, 2020)J/A+A/635/A155 : Gaia-ESO Survey SB1 catalogue (Merle+, 2020)J/A+A/638/A145 : GALAH survey. FGK binary stars (Traven+, 2020)J/AJ/162/184 : APOGEE: radial velocities of binaries (Kounkel+, 2021)J/ApJS/258/26 : Spectroscopic binaries from LAMOST MRS. I. (Zhang+, 2022)http://www.lamost.org/dr10/ : LAMOST DR10 home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/277/15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/277/15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/277/15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/277/15https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/277/15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/277/15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/277/15/table1 (Main sequence binary star candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/277/15/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/277/15/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/277/15/table1?GETtext/xml+votable180.050000true332.1077083-1.30436110.005555555555555556Cone search capability for table J/ApJS/277/15/table2 (Main sequence binary star candidates hosting exoplanets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/277/15/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/277/15/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/277/15/table2?GETtext/xml+votable180.050000true39.282166754.85127780.0055555555555555562/1 3 6 8-10 19-20 22 24 26 33-35 85 91 93 95 109 3/0 2 10-11 16 18 21-22 28-29 48-49 66-68 71-74 84-86 92 94 101-103 108-110 112 129-130 146 148 153-154 157 160-162 164 166-168 171 173 212 234 284 286 299-300 303-304 306 310 317-319 348 350-351 361 363 368 370-371 376-378 406-407 413 415 421-423 425 428 430-431 434 445 447 4/4-6 13-15 33-35 37-39 68-69 71 77-81 83 93-95 120-122 124 126 176-177 179 181-183 185-187 200-202 211 256-258 260-262 276-277 279-280 282-283 300 302-303 348-349 351 373-375 400-402 444 452-454 457-458 480 482 512-513 515 524 527 576 578-579 581-583 588 590-591 597 602-603 606-607 610-611 620-621 623-625 633-634 652-653 655 662-663 676-678 680-681 689 691 696-697 699-700 705-710 713-714 716 736 772-773 786-788 790-792 798-799 802 825 833 835 837-839 841-846 853-854 856-857 859-862 864-865 867-868 872-873 876 878 881 889 901 911 920 922-923 929-930 933-935 941 943-946 954-955 958 1103 1109-1111 1114-1115 1117-1119 1125-1127 1131-1133 1135 1140 1142 1148 1150-1151 1167 1174-1175 1178-1179 1181-1182 1186 1189-1193 1206-1207 1210 1222-1223 1228-1229 1231 1235-1238 1244 1246-1248 1251 1254 1258-1261 1263-1265 1267 1341-1343 1359 1379-1382 1386-1387 1390 1397 1399 1422-1423 1425 1428-1429 1431-1432 1434-1435 1437 1443 1449-1451 1478-1479 1516 1518 1591 1597-1599 1613-1615 1619 1623 1633-1637 1639-1640 1642-1643 1646 1650-1651 1657-1659 1671 1679 1681-1683 1696 1699 1704 1706-1709 1711 1717-1719 1728-1730 1733-1735 1740-1741 1743 1760-1762 1765-1767 1769-1771 1774-1775 1777 1779 1785-1787 1899 1902 1933 1941-1942 1956 1964 1966-1969 1971 1976 1979-1981 1983 1985-1987 1993-1995 1997 1999 2008 2010-2011 2016-2018 2020-2021 2025 2028 2031-2034 2037-2038 2043 2045-2047 2300-2301 2559 2815 5/28-29 31 48-49 51 129-131 144 146-147 280-281 283 305-307 328-329 331 368-369 371 492-493 500-501 712-714 720 722 738-739 752-754 757 812-814 816 832 834 837-841 848-849 853 855 860-862 871 880 896 898 900 906-907 928 1037-1039 1053 1055 1112-1114 1124-1126 1204-1206 1400-1402 1488 1490-1491 1520-1522 1524-1525 1527 1533 1612-1614 1780-1782 1784-1786 1820-1822 1824-1826 1836-1838 1841 1844 1856-1858 1864 1947 1958-1959 1961 1968-1970 2023 2028-2030 2040 2043 2056-2057 2059 2100-2102 2104-2106 2308 2310-2311 2323 2356 2358-2359 2384-2386 2392 2394 2396-2398 2401-2404 2406 2417-2422 2432 2434 2437-2439 2488-2489 2491 2506 2509 2511 2528 2530-2531 2540 2542 2544-2546 2616-2617 2619 2640 2642-2646 2716 2718 2728-2730 2732 2735 2752-2753 2755 2761 2763 2793-2795 2805-2807 2810-2811 2817-2819 2844-2845 2848 2850-2851 2860-2862 2872 2880-2882 2950 2952-2954 2956 2976 2978 3004-3005 3048 3072-3073 3075-3076 3084 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14208 14210 14215 14217-14218 14244-14245 14247-14248 14250-14251 14264 14284 14286 14288 14352 14354 14366-14367 14380 14382-14383 14387 14393 14395 14401 14403 14408 14410-14411 14413-14415 14436-14437 14439 14448-14449 14451-14453 14461 14476 14478-14479 14491 14494 14504-14506 14508 14510-14511 14516-14518 14524 14526-14527 14547 14549 14551 14561 14563 14570 14600-14602 14617 14619 14624 14626-14627 14630-14631 14641-14643 14648 14650 14653 14660-14662 14674-14675 14696-14697 14699 14716 14719 14736 14738-14739 14787 14789-14790 14803 14809 14811 14820-14822 14828 14830-14831 14848 14850-14851 14853-14855 14909-14912 14914-14915 15048-15049 15052 15055 15072 15074-15075 15160-15162 15164 15172-15174 15180 15182 15200-15202 15215 15226-15227 15230 15232-15233 15236 15242 15245-15247 15255 15297-15299 15316 15320-15321 15344 15346-15347 15352 15360-15362 15364 15366 15368 15370-15372 15374 15392 15401-15403 15406-15407 15424-15425 15433 15435 15452-15453 15457 15472-15473 15500 15616-15618 15773 15775 15797 17369-17370 17372 17398-17399 17401 17405 17588-17589 17612-17614 17621 17634-17635 17637-17639 17668-17669 17671 17677-17678 17682 17688 17690 17694-17695 17700-17702 17712-17713 17715 17721 17723 17731-17733 17735 17742-17743 17792-17793 17795-17796 17798 17800 17803-17804 17806-17807 17811 17817-17819 17868 17870-17871 17966 17975 17983 17988-17989 17997 18049 18052-18053 18059 18071-18072 18074-18075 18078-18079 18081-18083 18089-18091 18156 18158-18159 18260-18262 18296 18298-18301 18303 18388 18391 18557-18559 18646 18649 18651 18661-18663 18729-18730 18735 18739 18741-18743 18745 18747 18755 18760 18762 18765-18767 18770-18771 18781-18783 18816 18818-18819 18833-18835 18892-18894 18929-18931 18937-18938 18944-18946 18950-18951 18965 18967 18970 18972-18973 18975 18992 18994-18995 19008-19010 19104-19105 19108-19109 19111 19113-19115 19128-19130 19132-19133 19135 19268 19270-19271 19286-19287 19292 19294-19295 19340-19342 19348-19350 19352-19353 19357-19359 19376 19378-19380 19382-19383 19524 19526-19527 19538-19542 19546-19548 19551 19681 19684-19685 19688 19690-19692 19694-19695 19721-19723 19725-19729 19731 19740 19742-19743 19753-19758 19824 19826-19827 19829 19831 19836 19838 19925-19927 19988 19991 20012-20014 20035-20038 20042-20044 20046-20047 20049-20050 20052-20053 20055-20058 20061-20063 20084 20086-20087 20100 20102-20103 20113 20115 20123 20197-20198 20200-20202 20258 20268-20269 20271 21355 21373-21375 21423 21431 21437-21439 21441 21443 21449 21591 21597 21599 21619 21687 21711 21713 21716-21718 21722-21723 21730-21731 22023 22029-22031 22034-22035 22040-22041 22043-22045 22047 22051 22057-22059 22132-22133 22135 22156 22158-22159 22161-22163 22212 22215 22225-22227 22264-22265 22267 22344-22345 22347 22368 22370-22371 22645 22647 22652 22654 22679 22717 22722-22723 22726-22727 22737-22739 22797 22799 22818 22833 22835 22840 22842-22845 22888-22889 22891 22934 22940 22942-22943 22977 22979 22985 23008 23010 23012-23014 23016 23018-23019 23021-23023 23033-23034 23036-23037 23063 23077-23079 23168 23176 23178-23179 23621 23629-23631 23633 24284-24285 24287 24312-24314 25434-25435 25437-25439 25445 25515 25518-25519 25530-25531 25533-25535 25539 25545 25547 25711 25722 25727 25766-25767 25771 25778-25779 25794-25795 25797 25799 25857 25859 25872 25874-25875 25886 25889 25898-25899 25928-25929 25941-25943 25956 25958 26115 26216-26217 26219 26260-26262 26305 26307 26332-26333 26352 26354-26355 26372-26374 26384-26385 26387 26504-26505 26715 26718-26719 26813-26815 26823 26829-26831 26833-26835 26853 26855 26884-26886 26892-26893 26895 27154 27168-27169 27171 27177 27179 27284-27285 27287 27365 27367 27373-27375 27456-27458 27700 27702-27703 27716 27718-27719 27884-27885 27887 28212-28213 28215 28229-28230 28288-28290 28292-28293 28295 28360-28362 28364-28365 28367 28372-28374 28380 28382-28383 28416-28417 28419 28425-28427 28448-28450 28456 28459 28461-28463 28545-28547 28553-28555 29651 29689 29925 29927 29933-29935 29937-29940 29942-29943 29948-29950 30063 30074 30078 30171 30200-30201 30203 30277 30292-30293 30295 30338 30341-30346 30348 30350-30352 30354 30358 30361-30364 30366-30367 30372 30375 30411 30415 30425-30427 30449-30451 30464 30581-30584 30586-30587 30626 30633-30634 30684 30843 30893 30895 30898-30899 30919 30948-30949 30951 30955 30957-30959 30972 30974-30975 31001-31003 31016 31018-31019 31033 31035 31048 31050-31051 31054-31055 31100-31102 31108 31110 31112-31114 31121 31123 31137-31139 31154 31172-31174 31180 31182-31185 31199 31212-31214 31229 31231 31236-31237 31239 31252 31255 31257 31260-31261 31263 31281 31283 31289 31291 31324-31325 31327 31333-31335 31344 31348-31350 31363 31365 31367-31368 31370-31371 31377-31379 31396-31397 31399 31408-31410 31418-31419 31452-31453 31455 31520-31521 31557-31559 31573-31575 31584 31586-31587 31589-31591 31610-31611 31645-31647 31660-31661 31663 31724-31726 31756-31757 31812 31814-31816 31818-31820 31823 31826-31827 31844-31845 31848 31856-31857 31859 31865 31867 31884-31886 31936 31938 31942-31946 31948 31950 31970 31973 31976 31978 31981 31983 32000 32002-32003 32032 32034-32035 32044 32058 32073-32076 32078-32079 32096 32099 32102 32104-32105 32108 32144 32146-32147 32150 32202 32226 32241 32250-32251 32316-32318 32360-32361 32364-32365 32367 32380-32381 32383 32396 32416 32418 32423 32446 32468 32470-32471 32476 32478-32480 32482-32483 32489 32491 32564 32566-32567 32581 32583-32585 32587 32628-32629 32631 32652 32654 32665 32667 32676 32708-32709 32711-32712 32714-32715 36710-36711 36715 36722-36723 36726 36779 36794 36833 36836-36837 36839 36843 36849-36851 40797 40871 40890-40891 40903 40914-40915 40921-40923 40933-40935 45017-45019 48982-48983 48990-48991 48999 49005-49008 49010-49011 49013-49014 49020 49022-49023 49092-49093 49095 49112https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/277/15?format=asciiOpticaldefaultJ/ApJS/277/15/table1Main sequence binary star candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[101175/1018116138] LAMOST DR10 observation IDmeta.id;meta.mainlongprimaryPlindicates that star is hosting exoplanet (link to Table 2)meta.ref.urlcharGaiaGaia DR3 source ID (G1)meta.id.crossm_GaiaNumber of observations for this star candidatemeta.numberintnullableRAJ2000LAMOST DR10 hour of right ascension (J2000)pos.eq.ra;meta.mainindexedDEJ2000LAMOST DR10 degree of declination (J2000)pos.eq.dec;meta.mainPbin[0.5/1] Derived probability of being a binary, predicted by CNN (G2)stat.probabilitydoubleSNRg[20/872] LAMOST DR10 signal-to-noise ratio of observationstat.snrfloatJ/ApJS/277/15/table2Main sequence binary star candidates hosting exoplanetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHost star name (G1)meta.idcharObsID[19914165/1017616079] LAMOST DR10 observation IDmeta.id;meta.mainlongGaiaGaia DR3 source ID (G1)meta.id.crossm_GaiaNumber of observations for this host star candidatemeta.numberintnullableRAJ2000LAMOST DR10 hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000LAMOST DR10 degree of declination (J2000)pos.eq.dec;meta.mainPbin[0.5/1] Derived probability of being a binary, predicted by CNN (G2)stat.probabilitydoubleSimbadSimbad column added by the CDSmeta.ref.urlchar