J/ApJS/278/46ivo://CDS.VizieR/J/ApJS/278/46CDSGuo S.Kovalev M.Li J.Lu G.Jia S.Li Z.Li J.Xiong J.Yang M.,He T.Chen X.Han Z.2025-08-01T08:20:05Z2025-07-04T12:29:41ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsradial-velocityorbitsThe period, mass ratio, eccentricity, and other orbital parameters are fundamental for investigating binary star evolution. However, the number of binaries with known orbital parameters remains limited. Utilizing the LAMOST medium-resolution spectroscopic survey, we derived orbital solutions for 665 SB 2 binaries by fitting the radial velocities of 1119 SB 2 systems with at least six observations, employing a modified version of The Joker optimized for SB 2 binaries. To ensure the reliability of the results, four selection criteria were applied: reduced chi-square, normalized mean absolute error, maximum phase gap, and radial velocity distribution metric. After applying these criteria, 665 reliable orbits were retained. Comparison with Kepler, TESS, and Zwicky Transient Facility light-curve data shows excellent agreement, with discrepancies in some cases attributed to shorter pulsation periods observed in light curves. Additionally, good consistency is found between our periods and those of SB 1 systems in Gaia data. These orbital solutions contribute to understanding binary star evolution and the statistical properties of binary populations.2025ApJS..278...46Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/278/46CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)V/156 : LAMOST DR7 catalogs (Luo+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/278/46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/278/46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/278/46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/278/46https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/278/46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/278/46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/278/46/table1 (List of the parameters of 665 binary candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/278/46/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/278/46/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/278/46/table1?GETtext/xml+votable180.050000true0.59834.1120.0055555555555555565/1172 1635 3776 5988 6003 6086 6116-6117 6/316 379 405-406 455 462 464-465 467-468 473-476 479 496 863 883 949 957 994 1000 1042 1046 1048 1051-1052 1055 1072-1073 1077 1158-1159 1165 1169 1177-1178 1180 1201 1458 1460 1464-1465 1468 1470-1471 1514 1693 1730 1736 1742 1751 1757 1759 1768 1772-1774 1811 1813-1815 1817-1818 1823 1833-1835 1838-1839 1841 1924 1927 1929-1930 1959-1960 1964-1966 1978 2285 2293 2297 2301 2327 2459 2463 2482 2485 2489 2528 2643 2819 2821-2822 2829 2840 2849 3005 3022 3132-3133 3137 3140 3143-3144 3146 3150 3152 3170-3171 3176-3177 3180 3182 3198-3199 3219-3222 3228 3231 3252 3264 3266 3268 3328 3333 3335 3337 3344 4247 4251-4252 4254-4255 4275-4277 4279 4285 4291 4296 4298-4299 4302 4320-4322 4326 4334 4345-4347 4639 4662-4663 4668-4669 4675 4678 4685 4692 4694 4704-4706 4708 4714 4875 4877 4888 4896-4898 5341 5364-5365 5367 5372 5512-5513 5516 5518 5537 5673-5674 5775 5793 5797 5799 5801 5803 5805-5809 5816 5993 6358 6363 6459 6533 6535 6544-6545 6547-6548 6552-6553 6555 6564-6565 6762 6805 6809 6849 6852 6854 7169 7172 7345 7363-7364 9205 9210 9213-9214 9837 9840-9841 9848-9849 9851 9933 9936 9961 10618 10692 10694-10695 10700-10701 10706 10712 10721 10730-10731 10735 10959 10979-10982 10989 11000 11037 11072 11077 11079-11081 11112 11114 11154-11155 11164 11201 11332 11344-11345 11374 11457 11716 11729 11750 13371 13407 13429 13437 13439 13456-13457 13461 13463-13466 13468 13488-13489 13492 13506 13578-13579 13600-13602 13604 13607-13608 13611-13613 13665 14663 14666-14669 14671 14682 14688 14693-14694 14697 14704 14762 14929 14931-14932 14934-14935 14939 14941-14942 15108 15110 15112 18035 18038 18043-18044 18131 18160-18161 18164 18172 18216 18219 18319 18330 18336 18339 18348 18351 18353-18354 18360 18362 20429 20440 20455 21359 21465 22248 22251 22876 22896 22900 23942-23943 23945 23948 23958 23960 23962-23963 23967 23972-23973 23984-23985 23994-23995 23998 24001 24004 24006-24009 24011 24018 24025 24035-24037 24048 24244 24246-24247 24251 24253 24288 24290 24298-24299 24324-24325 24327 24329 24333 24335-24338 24340-24342 24348-24349 24369 24371 24374-24376 24378-24382 24418 24424 24427 24431 24442 24446-24447 24511 24514 24519 24528 24531 24534 24536 26983 26994 27002-27003 27076 27079 27084 27088 27090 27417 27423 27447 27466-27468 27470 27488 27495 27500-27501 27510 28597 28605 28620 28640-28641 28644 28646 28649https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/278/46?format=asciidefaultJ/ApJS/278/46/table1List of the parameters of 665 binary candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLAMOSTLAMOST designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharGaiaDR3Gaia DR3 source_idmeta.idRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainFitFlag[1/4] Fit flag (1)meta.codeintPerPerioddtime.periodfloate_PerUncertainty in Pdstat.errorfloateEccentricitysrc.orbital.eccentricityfloate_eUncertainty in estat.errorfloatK1Radial velocity semi-amplitude of primary starkm/sspect.dopplerVelocfloate_K1Uncertainty in K1km/sstat.errorfloatK2Radial velocity semi-amplitude of secondary starkm/sspect.dopplerVelocfloate_K2Uncertainty in K2km/sstat.errorfloatv0Systemic radial velocitykm/sspect.dopplerVelocfloate_v0Uncertainty in v0km/sstat.errorfloatomegaArgument of periastronradsrc.orbital.periastronfloate_omegaUncertainty in omegaradstat.errorfloatt0Reference epoch for phase = 0; Julian Daydmeta.ref;time.epochdoublee_t0Uncertainty in t0dstat.errorfloatsRadial velocity jitterkm/sstat.stdev;phys.velocfloatqMass ratio q = m2/m1 = K1/K2phys.massfloate_qUncertainty in qstat.errorfloatNNumber of observationsmeta.numberintMaxPhaseGapMaximum phase gaptime.intervalfloatNMAENormalized mean absolute errorstat.errorfloatMMetric showing radial velocity distributionstat.fit.paramfloatdmagDifference in magnitudemagphot.magfloats_dmagStandard deviation of dmagmagstat.stdev;phot.magfloat