Spectroscopic multiple-star syst. from LAMOST DR10 J/ApJS/284/5 ivo://CDS.VizieR/J/ApJS/284/5 CDS Han Y. Li K. Gao X. 2026-09-08T13:02:36Z 2026-09-08T13:20:10Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr visible-astronomy spectroscopy surveys spectroscopic-binary-stars radial-velocity We employed the Gaussian decomposition package Gausspy+ (Riener+ 2019A&A...628A..78R) to autonomously identify multipeak features in the cross-correlation functions (CCFs) of spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Medium-Resolution Survey (MRS), enabling the detection of single-lined spectroscopic binaries (SB1s), double-lined spectroscopic binaries (SB2s), and spectroscopic triples (STs). By providing Gausspy+ with training spectra exhibiting single-, double-, and triple-peak CCFs, we derived optimal fitting parameters suited to the dataset. To ensure the reliability of the fits, we established selection criteria for exposures showing double- or triple-peak CCFs based on statistical analysis of the test sample. Combining visual screening with our testing sets, the accuracy for SB2 identification reached 95.7%, while the accuracy for ST identification reached 98.6%. Applying this method to nearly 450,000 LAMOST DR10 targets, we identified 15,887 SB 2 candidates and 8771 ST candidates. In addition, we analyzed 903 targets that exhibit significant radial velocity (RV) variations but whose CCFs only show a single peak. For these objects, we performed orbital parameter inference using The Joker, and identified 294 SB1 candidates with periodic RV variations. Notably, among the identified candidates, 65.3% of SB2s, 93.9% of STs, and 93.9% of SB1s are newly discovered systems, substantially expanding the census of spectroscopic multiple systems in the LAMOST MRS dataset. Furthermore, we also provide orbital solutions for 334 SB2 systems. For ST systems, we identified 46 hierarchical triple systems and obtained their orbital solutions. These results further enrich the characterization of multiple star systems in the LAMOST MRS dataset. 2026ApJS..284....5H https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/284/5 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to B/sb9 : SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014) 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/AJ/140/184 : RAVE double-lined spectroscopic binaries (Matijevic+, 2010) J/A+A/608/A95 : GES: multi-line sp. binary candidates (Merle+, 2017) J/AJ/158/155 : SB candidates from the RAVE & Gaia DR2 surveys (Birko+, 2019) 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) J/ApJS/269/41 : New SB1s with sp. orbits from LAMOST DR8 LRS (Chen+, 2023) J/ApJS/266/18 : Double-line spectroscopic binaries from LAMOST (Zheng+, 2023) J/MNRAS/527/521 : SB2s in LAMOST-MRS (Kovalev+, 2024) J/ApJS/278/46 : Orbits of 665 SB2s in Lamost-MRS (Guo+, 2025) J/ApJS/277/15 : Binary stars from LRS LAMOST DR10 & Gaia DR3 (Jing+, 2025) J/ApJS/276/11 : Spectroscopic binaries from LAMOST MRS DR9 (Li+, 2025) J/A+A/693/A289 : Gaia-ESO survey sp. binaries (Van der Swaelmen+, 2025) J/ApJS/282/55 : Single-lined sp. binaries from LAMOST DR11 (Ye+, 2026) http://lamost.org/ : LAMOST homepage https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/284/5 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/284/5 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/284/5 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/284/5 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/284/5 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/284/5 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/284/5/table3 (SB2 candidates from LAMOST-MRS DR10) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/284/5/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/284/5/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/284/5/table3? GET text/xml+votable 180.0 50000 true 198.91 41.26 0.005555555555555556 Cone search capability for table J/ApJS/284/5/table4 (Spectroscopic triple (ST) candidates from LAMOST-MRS DR10) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/284/5/table4? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/284/5/table4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/284/5/table4? GET text/xml+votable 180.0 50000 true 68.64 27.44 0.005555555555555556 Cone search capability for table J/ApJS/284/5/table5 (SB1 candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/284/5/table5? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/284/5/table5? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/284/5/table5? GET text/xml+votable 180.0 50000 true 346.05 32.41 0.005555555555555556 Cone search capability for table J/ApJS/284/5/table6 (Other SB2 and hierarchical triple (HT) system candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/284/5/table6? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/284/5/table6? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/284/5/table6? GET text/xml+votable 180.0 50000 true 123.91 -0.61 0.005555555555555556 Cone search capability for table J/ApJS/284/5/table7 (Orbital parameters of SB2 candidates with Periods>=200days) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/284/5/table7? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/284/5/table7? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/284/5/table7? GET text/xml+votable 180.0 50000 true 293.98 43.71 0.005555555555555556 4/63 84 90-91 101 107-108 110 113 120 122 176 183 188 201 203 208 224 841 884 933 1279 1390 1401 1485 1497 1499-1502 1515 1521 1524 1530 1533 5/75-76 78-79 84-85 87 89 100 113 115-116 118-119 214 237 239 247-248 250 256-257 259-260 262 268-269 277 291 296 300 319-321 324-326 335 340 342 344-345 348 353-355 357-358 388-389 396 414 423-424 426-427 436 439 448 458-459 492-493 495 504 509 581 587 597-599 604 609 618-620 622 629-631 653 666 669-670 699 702-703 708 710 712-713 716-717 719 725-728 731 746-747 749-750 756-758 760-762 779 781-786 792 794 797 799 811 816 818-819 821-822 826-828 830-831 836 838 840-842 900-901 904 912-913 974 993 1030 1063 1066 1069 1074 1080 1082-1083 1086-1087 1154 1162-1165 1167 1169-1170 1172-1173 1176 1178 1184 1186 1189 1217 1225 1269 1419 1448-1449 1520 1537 1539 1541-1542 1548 1550-1551 1557 1569 1581-1582 1594-1595 1610 1632-1633 1654 1663 1670-1671 1679 1681 1683-1684 1688 1690-1691 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12620 12623 12626 12632 12634 12639 12644-12645 12647-12649 12651 12653 12656 12658-12659 12668 12670-12671 12676-12677 12681 12685 12687 12689-12690 12696 12703 12724-12725 12729 12734-12735 12741 12746-12747 12749 12752-12754 12756 12758 12760-12761 12764-12766 12770-12773 12775 12777 12780-12781 12783 12785 12787 12789-12792 12794-12795 12797 12895 12917-12919 12921 13012 13077 13090-13091 13095 13113-13115 13118 13120 13187 13189-13191 13197 13200 13202-13203 13205-13209 13211 13233 13236 13248 13250 13256-13258 13280 13286 13291 13296 13298-13299 13302 13304 13307-13308 13310 13318 13324-13326 13329 13331-13332 13336-13338 13340 13342-13343 13345 13348 13350-13351 13353 13355-13356 13358-13362 13366-13367 13372-13373 13377-13381 13386-13389 13391-13392 13395 13397 13399-13400 13407-13408 13410 13416 13418-13419 13422 13442 13452 13454-13455 13472 13477 13480 13488-13489 13492 13503-13504 13506-13508 13510 13512 13525 13572 13575 13584-13585 13587 13592 13594 13598-13599 13612-13614 13617 13622-13623 13632 13634-13635 13637 13639 13641 13643 13652-13654 13660 13662 13664-13665 13668-13669 13671 13673-13675 13680-13681 13696 13709 13715 13722-13724 13729-13732 13735-13736 13738 13740 13742-13744 13746 13752 13760 13762 13782-13783 13803 13806-13807 13816 13818 13833 13835-13837 13839 13844-13845 13852-13853 13859-13861 13863 13865 13868-13870 13873-13874 13876 13880 13888 13890 13892 13896-13898 13901-13902 13907 13916 13918 13920 13925 13936 14047 14069 14092-14094 14103 14112 14133-14135 14140-14141 14165-14167 14169 14171 14184 14204-14205 14207 14222-14223 14240-14241 14243-14244 14247 14262-14263 14271 14277 14285 14287-14290 14293-14295 14305-14307 14312 14314 14317 14328-14329 14331-14332 14571 14573-14575 14585-14587 14590-14591 14645 14647 14653 14657 14665-14667 14672-14674 14680 14682-14683 14696-14698 14700-14701 14704 14706 14759 14762-14763 14770-14771 14774 14819 14824-14826 14833 14835 14837 14839-14841 14844-14845 14881 14883-14884 14888 14891-14893 14895 14898 14904-14905 14907 14913 14916-14917 14919 14923 14944 14946 14949 14951 14955-14957 14959-14962 14968 14970-14971 14976 14978-14980 14985-14986 14989 14991 15000 15002 15009 15011-15014 15020 15024 15037 15078 15080 15082-15083 15112-15114 15124-15126 15132-15134 15138 15140-15141 15152 15154 15173 15176 15250 15254-15255 15258 15268-15269 15281-15284 15291-15292 15319 15343 15354 15399 15410-15411 15414 15420 15455 15466-15467 15477 15507 15517 15520 15522 15558 15560 15617 15619 15625-15627 15632-15634 15636 15640 15652-15653 15655-15656 15660 16006-16007 16012 17398 17401 17404 17859-17860 17862 17917 18011 18032-18033 18035-18036 18038-18039 18087-18088 18093 18128-18129 18131 18137 18139 18160-18161 18171 18173-18175 18187 18209 18216 18218-18219 18304 18306 18313-18314 18340-18341 18343 18345 18347-18348 18351 18360-18362 18430 18768 18776 18778-18779 18789 18932-18933 19053 19058 19060 19063 19065 19069-19071 19116 19135 19143 19150 19152-19153 19155-19158 19160 19162 19178-19179 19182 19185 19238 19241 19247 19317 19319 19326 19328 19331 19333 19335-19337 19342 19433 19435 19437-19439 19449-19451 19459-19460 19462 19470 19474 19483 19489 19494 19498 19507 19512 19552 19560 19566 19578 19598 19603 19620-19621 19623 19625-19627 19634 19637 19639-19640 19649 19652 19662 19688-19689 19729 19741-19742 19789 19871 19891 19895 19899 19901 20003 20009 20012 20090 20135 20141-20143 20146 20158 20165 20167 20173 20177 20180 20183 20187 20190 20197 20199 20203 20207 20209 20211 20214 20217-20219 20221-20223 20245-20246 20288-20290 20292-20293 20296 20298 20300 20328 20330 20333-20334 20346 20349 20375 20378-20379 20381 20387 20390 20392 20397 20403 20405-20406 20408 20410-20411 20413 20424-20425 20427 20433-20435 20449-20451 20456 20461 20463 21365 21367 21461 21482 21485 21487 21489-21491 21497-21502 21647 21667 21672-21673 21675 21680 21682-21683 21686 21694 21791 21799 21805-21807 21811 21816 21818-21819 21834-21835 21837 21862-21863 21882-21884 21893 21904-21906 21912-21913 21916-21917 21952 21954-21957 21964 21968-21969 21971 21976 22005-22007 22011 22013-22015 22020-22021 22027 22032-22033 22040 22042-22045 22047 22049-22051 22056 22058-22059 22072-22073 22075-22076 22078 22093-22095 22098 22102 22108 22111 22124-22126 22138 22148-22150 22161 22163 22178 22185 22187 22197 22199 22205 22207 22212 22214 22220 22222-22223 22225 22227 22233 22236 22256-22258 22310-22311 22315 22328 22330-22332 22334 22352-22353 22358-22359 22365 22385-22386 22392-22393 22395 22400 22402 22408 22412 22442-22443 22449 22452 22467 22472 22474-22475 22492-22493 22495 22497 22500-22501 22512-22513 22517 22780 22803 22807 22809-22810 22832-22833 22835-22837 22839 22841 22845 22856 22858-22859 22861 22863 22865 22867 22873-22874 22884 22888 22890-22891 22894-22895 22906-22907 22954 22984-22985 22987 22998 23000-23001 23003 23006 23112-23113 23118-23119 23121 23125 23127 23130 23143 23334 23343 23346-23348 23350-23354 23356-23357 23359 23418-23419 23440 23465 23468 23470-23471 23479 23482 23487 23497-23498 23501-23504 23507 23513-23515 23521-23523 23525-23526 23529 23531-23533 23535 23550-23551 23616-23617 23620-23621 23623 23640-23641 23644-23645 23647 23663 23676 23678 23731-23732 23735 23737-23739 23754-23757 23759 23776-23777 23784 23786-23787 23792-23793 23800 23816 23818 23859 23865 23867 23875 23881 23883 23894 23900 23902 23904 23906-23907 23920-23922 23924 23926 23939 23945 23947 23969 23981-23983 24052-24054 24056-24057 24060-24062 24078 24091-24094 24106 24112 24116 24128-24130 24138 24192 24194-24196 24198 24200 24203-24204 24206 24219 24222-24224 24226 24228 24230 24263 24265-24266 24273-24275 24280 24282-24283 24285-24286 24300-24301 24304-24305 24307-24309 24311 24313 24315 24323 24329 24356-24357 24367-24369 24371-24372 24374-24375 24400 24403 24405-24409 24412-24413 24415 24417-24418 24420 24431 24433 24450-24451 24476-24477 24496 24512-24514 24561 24564-24566 24570 25714 25719-25720 25722 25724 25726 25809 25812-25813 26002 26004 26006 26009 26012 26032 26037 26042 26159 26170-26171 26175 26202-26203 26212 26224 26229 26231 26245 26256-26258 26260 26265 26268 26271 26279 26292 26296 26298 26312 26315 26334 26352 26354-26355 26358-26359 26364 26368 26375 26380-26381 26385 26387 26401 26479 26490 26495 26561 26563 26577 26585 26613-26614 26982-26983 26985 26987 26995 27000 27002-27003 27005 27007 27072-27074 27080 27082 27085 27088-27090 27094-27095 27099-27101 27104 27109 27120 27127 27145 27148 27162-27163 27174-27175 27177 27179 27181 27183 27186-27187 27190 27198 27243 27255 27259 27268 27271-27272 27274-27275 27277-27278 27284 27286 27302 27329 27334-27335 27349 27352 27365 27382-27384 27388-27390 27411 27415-27417 27419-27422 27427 27440-27441 27443-27445 27447 27449-27450 27454 27459 27464 27466-27467 27482-27483 27488 27490-27491 27496 27498 27500-27501 27510 27512 27514-27515 27517 27520-27522 27554 27560 27562 27564 27571-27572 27582-27583 27585 27606 27619 27623 27626 27644 27652 27659 27665-27666 27669 27673 27681-27682 27684 27686 27690 27692 27771 27788 27791 27809 27813-27814 27844-27845 27855 27890-27891 27939-27940 27957 27971 27990 27994 28001 28007 28015 28084 28088 28091 28102 28106 28112 28115 28118 28127 28138 28141 28155-28156 28192 28203 28239 28241 28248 28251 28253-28254 28273-28274 28353 28355 28358 28360-28361 28364 28366 28376 28378 28385 28387-28388 28390 28396 28413 28418 28426 28432 28439 28442 28444 28462 28480 28482 28488 28491-28492 28494-28495 28503 28509 28530 28533 28535 28537 28540 28543 28550 28556-28558 28567 28571 28576 28583 28591-28592 28595 28597 28599-28600 28604-28605 28617 28623 28628-28629 28646-28650 28652-28654 28657-28658 28664 30034-30035 30038 30041 30043 30046-30047 30210 30217-30219 30226 30241 30243 30259 30847 30933 30946 30952 30956 31009 31017 31019 31034 31083-31084 31093 31103-31105 31107 31109 31120 31168 31172-31173 31175 31177 31181 31186-31187 31192 31301 31404 31418 31487 31583 31651 31662 31686 31690 31695 31706 31754 31776 31778-31779 31784-31785 31787 31789-31791 31799 31804-31805 31807 31820 31848-31849 31851 31861 31863 31872-31873 31889 31891 31901 31913 31915 31919 31931 31933-31934 31970-31971 31974 31976-31978 32008 32010-32012 32014-32015 32019 32024-32025 32028 32032-32034 32036 32038 32040-32041 32044 32050-32051 32055 32057 32096 32187-32189 32191 32226-32227 32232-32233 32235 32257-32258 32262-32266 32268-32269 32271-32272 32277 32279 32281 32290 32320-32322 32328 32332 32337 32339 32341 32347 32349 32351 32369 32371 32380-32381 32436 32456 32469 32471 32480 32482 32501 32508 32510 32514 32521-32523 32527 32534 32544-32546 32552-32553 32555-32556 32558-32562 32571 32576 32578 32580 32585 32587 32589-32591 32602-32603 32605-32606 32616 32618-32622 32631 32634 32640-32642 32650 32652-32653 32656 32664 32668 32670-32671 32681 32693-32695 32698 32700 32705 32707 32731 32734 32736 32741-32742 32746 32757 32759-32760 40925-40926 40951 40958 44943 44952 44954 44958 44967 44980 49148 1.9867573869263685e-19 3.916500758235022e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/284/5?format=ascii Optical default J/ApJS/284/5/table3 SB2 candidates from LAMOST-MRS DR10 recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int uID LAMOST observation source ID meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 [-10/85] Declination (J2000) deg pos.eq.dec;meta.main indexed spID LAMOST spectral name (1) meta.id;meta.dataset char Epoch [83555758/86021444] Epoch time.epoch int HJD [2458025/2459737] Heliocentric Julian Date d time.epoch int indexed SNR [10/370] Signal-to-noise ratio stat.snr float RVel1 [-800/375] Radial velocity of primary component km/s spect.dopplerVeloc float e_RVel1 [0.4/468] Uncertainty in RVel1 km/s stat.error;spect.dopplerVeloc float RVel2 [-605/794] Radial velocity of secondary component km/s spect.dopplerVeloc float e_RVel2 [0.6/707] Uncertainty in RVel2 km/s stat.error;spect.dopplerVeloc float N [1/111] Number of exposures meta.number int plx [-4.1/33]? Gaia DR3 parallax mas pos.parallax.trig float nullable Gmag [7/20.6]? Gaia DR3 G-band apparent magnitude mag phot.mag;em.opt float nullable
J/ApJS/284/5/table4 Spectroscopic triple (ST) candidates from LAMOST-MRS DR10 SNR [10/300] Signal-to-noise ratio stat.snr float RVel1 [-800/558] Radial velocity of primary component km/s spect.dopplerVeloc float e_RVel1 [0/4911] Uncertainty in RVel1 km/s stat.error;spect.dopplerVeloc float RVel2 [-696/710] Radial velocity of secondary component km/s spect.dopplerVeloc float e_RVel2 [0/4596] Uncertainty in RVel2 km/s stat.error;spect.dopplerVeloc float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int uID LAMOST observation source ID meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 [-10/85] Declination (J2000) deg pos.eq.dec;meta.main indexed spID LAMOST spectral name (1) meta.id;meta.dataset char Epoch [83555758/86021444] Epoch time.epoch int HJD [2458025/2459737] Heliocentric Julian Date d time.epoch int indexed RVel3 [-503/798] Radial velocity of tertiary component km/s spect.dopplerVeloc float e_RVel3 [0/6185] Uncertainty in RVel3 km/s stat.error;spect.dopplerVeloc float N [1/117] Number of exposures meta.number int plx [-3.91/115]? Gaia DR3 parallax mas pos.parallax.trig float nullable Gmag [8.49/18.8]? Gaia DR3 G-band apparent magnitude mag phot.mag;em.opt float nullable
J/ApJS/284/5/table5 SB1 candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int uID LAMOST observation source ID meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-7/71.1] Declination (J2000) deg pos.eq.dec;meta.main dRVel [50/224] Difference in maximum apparent radial velocity km/s spect.dopplerVeloc;arith.diff float Per [0.27/674.2] Orbital period d time.period float e [0/0.78] Eccentricity src.orbital.eccentricity float K [-155/188] Radial velocity semi-amplitude km/s spect.dopplerVeloc float omega [-3.14/3.13] Argument of periastron rad src.orbital.periastron float M0 [-3.13/3.12] Mean anomaly at reference epoch rad src.orbital.meanAnomaly float v0 [-173/292] Systemic velocity km/s phys.veloc float plx [-0.6/10.4] Gaia DR3 parallax mas pos.parallax.trig float Gmag [10.14/20.16] Gaia DR3 G-band apparent magnitude mag phot.mag;em.opt float
J/ApJS/284/5/table6 Other SB2 and hierarchical triple (HT) system candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int uID LAMOST observation source ID meta.id;meta.main char RAJ2000 [4.17/359] Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-6.6/70] Declination (J2000) deg pos.eq.dec;meta.main Per [0.3/197.5] Orbital period d time.period float e [0/0.91] Eccentricity src.orbital.eccentricity float K1 [-213/1051] Radial velocity semi-amplitude of primary component km/s spect.dopplerVeloc float K2 [-209/1102] Radial velocity semi-amplitude of secondary component km/s spect.dopplerVeloc float omega [-3.14/3.1] Argument of periastron rad src.orbital.periastron float M0 [-3.13/3.1] Mean anomaly at reference epoch rad src.orbital.meanAnomaly float v0 [-260/78] Systemic velocity km/s phys.veloc float q [0.02/1.16] Mass ratio phys.mass;arith.ratio float Delmag [0/2.5] Magnitude difference mag phot.mag;arith.diff float Type Classification of candidate (1) meta.code.class char
J/ApJS/284/5/table7 Orbital parameters of SB2 candidates with Periods>=200days recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int uID LAMOST observation source ID meta.id;meta.main char RAJ2000 [5.4/359] Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [11.7/69] Declination (J2000) deg pos.eq.dec;meta.main Per [202.4/746.3] Orbital period d time.period float e [0/0.35] Eccentricity src.orbital.eccentricity float K1 [-101/114] Radial velocity semi-amplitude of primary component km/s spect.dopplerVeloc float K2 [-102/118] Radial velocity semi-amplitude of secondary component km/s spect.dopplerVeloc float omega [-2.9/2.8] Argument of periastron rad src.orbital.periastron float M0 [-3/3.11] Mean anomaly at reference epoch rad src.orbital.meanAnomaly float v0 [-68/60.3] Systemic velocity km/s phys.veloc float q [0.2/1] Mass ratio phys.mass;arith.ratio float Delmag [0/1.4] Magnitude difference mag phot.mag;arith.diff float