Contact binaries from CSS DR2 J/ApJS/273/31 ivo://CDS.VizieR/J/ApJS/273/31 doi:10.26093/cds/vizier.22730031 CDS Wang J. Ding Xu Li J. Xiong J. Cheng Q. Ji K. 2025-03-07T20:12:31Z 2025-02-04T12:22:53Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr eclipsing-binary-stars astronomical-models surveys effective-temperature stellar-radii visible-astronomy With the continuous development of large optical surveys, a large number of light curves of late-type contact binary systems (CBs) have been released. Deriving parameters for CBs using the the Wilson-Devinney program and the PHOEBE program poses a challenge. Therefore, this study developed a method for rapidly deriving light curves based on the Neural Networks model combined with the Hamiltonian Monte Carlo (HMC) algorithm (NNHMC). The neural network was employed to establish the mapping relationship between the parameters and the pregenerated light curves by the PHOEBE program, and the HMC algorithm was used to obtain the posterior distribution of the parameters. The NNHMC method was applied to a large contact binary sample from the Catalina Sky Survey, and a total of 19104 late-type contact binary parameters were derived. Among them, 5172 have an inclination greater than 70{deg} and a temperature difference less than 400K. The obtained results were compared with the previous studies for 30 CBs, and there was an essentially consistent goodness- of-fit (R2) distribution between them. The NNHMC method possesses the capability to simultaneously derive parameters for a vast number of targets. Furthermore, it can provide an extremely efficient tool for the rapid derivation of parameters in future sky surveys involving large samples of CBs. 2024ApJS..273...31W https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/273/31 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/ApJ/629/1055 : Evolution of close binary systems (Yakut+, 2005) J/ApJ/723/1469 : Flux calibrations and WZ Oph photometry (Wilson+, 2010) J/A+A/528/A90 : SuperWASP short period eclipsing binaries (Norton+, 2011) J/ApJ/763/32 : Galactic halo RRab stars from CSS (Drake+, 2013) J/MNRAS/430/2029 : Initial masses of W UMa type contact bin. (Yildiz+, 2013) J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014) J/MNRAS/465/4678 : 9380 contact binaries from CRTS VSC (Marsh+, 2017) J/A+A/616/A10 : Open clusters GaiaDR2 HR diagrams (Gaia Collaboration, 2018) J/AJ/156/241 : Variable stars measured by ATLAS (Heinze+, 2018) J/ApJS/247/50 : Late-type contact binaries in CSS DR1 (Sun+, 2020) J/ApJS/254/10 : Compilation of W UMa stars (Latkovic+, 2021) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/273/31 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/273/31 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/273/31 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/273/31 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/273/31 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/273/31 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/273/31/table1 (Contact binary system (CB) catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/273/31/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/273/31/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/273/31/table1? 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25875 25877-25879 25890 25899 25919 25922 25925 25929 25933-25934 25943 25949 25961-25962 25981 25988-25989 25991 26015 26020 26030 26035 26042 26054 26056 26058 26067 26072-26073 26088 26092 26095 26131 26165 26177-26178 26190 26201 26204 26215 26221 26235 26242 26245 26250 26261-26262 26275 26287 26301 26306-26307 26329 26360 26377 26380 26388 26400-26401 26441 26453 26462 26466 26474 26479 26511 26528 26546 26587 26604 26609 26615-26617 26619 26634 26644-26645 26648 26650 26666 26668 26670 26672-26674 26684 26692 26694 26698 26700 26710 26715 26719 26731 26739 26744 26751 26766 26772 26774 26780 26785 26788-26789 26792 26795 26800 26804-26806 26812 26815 26818 26860 26865 26880 26884 26889 26891 26896 26954 26967 26969 26974 26977 27016 27019 27040 27045-27046 27053 27055 27059 27066 27094 27101 27113 27120 27133 27138-27139 27141-27142 27147-27148 27154 27161 27164 27170 27177 27181 27194-27197 27200 27205 27207-27208 27224 27226 27230 27238 27249 27252 27264 27285-27286 27297-27298 27305-27306 27312 27318 27321 27327 27334 27336 27345 27351 27357 27367 27375 27380 27387 27390 27399 27402 27404 27409 27415 27481 27483 27496 27498 27522 27524 27539 27545 27549 27553 27562 27564 27574 27576 27595 27602 27608 27615 27623 27631 27635 27639 27645 27662 27681 27686 27716 27721 27731 27749 27781 27821 27836 27885-27886 27888 27922 27928 27942-27943 27947-27948 27954 27973 28000 28004 28011-28012 28033 28039 28044 28050 28068 28085 28095 28105 28107 28112 28115 28133 28143 28148-28149 28156 28190 28215 28220 28236 28241 28248 28252 28260 28305 28336-28337 28339 28362 28379-28380 28383 28432 28449-28450 28457 28483 28485 28497 28515 28531 28553 28568 28589 28593 28601 28634 28641 28645 29781 29953 29968 29970 30016 30018 30021-30024 30026 30032 30034 30037 30039-30040 30044 30054 30753 30762 30765 30767 30769 30775 30781-30783 30827 30847 30849 30852-30853 30856-30857 30862-30864 30866 30868 30870 30877 30881 30890-30892 30899 30901 30923 30935 30938 30942 30944 30946 30949 30951 30958 30964-30966 30973-30974 31017 31019 31023 31035 31038-31039 31106-31107 31111 31115-31117 31121 31123 31125-31126 31128 31134 31136 31139 31141 31143-31146 31148 31154 31158 31161 31167 31170 31173 31178 31203 31205-31207 31209-31210 31214 31219 31221 31223 31229 31231 31234 31236 31241 31253 31262-31264 31271 31273 31279 31284 31292 31298 31316 31325-31326 31329 31332 31334 31340 31346 31349 31354-31355 31358 31360 31362 31366 31378 31381 31383 31385-31386 31389 31397 31406 31413 31418 31431 31433-31435 31438-31439 31446 31449 31464 31473 31478-31479 31482 31484 31486 31489-31490 31492-31493 31496 31500-31501 31503 31505 31512-31513 31516 31524 31530-31531 31533 31535 31538-31540 31542-31543 31549 31552 31555 31560 31564 31568-31569 31574 31577 31581 31589 31592-31593 31595-31596 31602 31605 31608 31611-31612 31619 31624 31633 31635 31641-31642 31646 31650-31652 31655-31656 31662 31671 31680 31685-31687 31691 31696-31697 31703 31713 31720 31730 31737 31874 31880 31886 31908 31917 31919 31982-31983 32258 32263 32270 32278-32279 32281 32283 32289 32295 32297-32298 32302 32305 32308 32311-32312 32319 32324 32328 32333-32334 32346 32350-32352 32358-32360 32363-32366 32368 32371 32374 32376 32379 32383-32384 32395 32398 32403 32407 32410 32416 32418-32419 32432 32434 32437 32442-32444 32458 32461 32463-32464 32466 32468 32471 32476-32477 32479 32482 32486 32488 32493 32495-32496 32502 32504-32505 32509 32511 32554 32566 32568 32570 32622-32623 32632 32635 32640 32642-32643 32646 32649-32650 32653 32657-32660 32662 32664-32665 32668-32669 32675 32677-32678 32680 32687 32689-32690 32692 32695-32696 32698 32700-32701 32709-32712 32715 32717 32719 32721-32724 32726-32727 32729-32730 32733 32735-32738 32744 32746 32748 32751-32752 32760 32762 32764-32765 36181 36189 36199 36213 36246 36253 36255 36261 36269 36281 36300 36307 36310 36312 36341 36345 36348 36441 36472-36473 36501 36508 36522 36525 36536 36538 36549 36558-36559 36572 36577 36579 36582 36597 36605 36611 36630 36636-36638 36672 36676 36680 36694-36695 36708 36744 36757-36758 36784 36790 36811 36843 36857 36861 36863 40282 40293 40304 40307 40310-40311 40316-40317 40346-40347 40351 40368 40370-40371 40374-40375 40397 40399 40401 40404 40414-40415 40426 40430 40434 40436 40438 40533-40534 40707 40714 40719 40722-40726 40730-40731 40735 40738 40741 40748 40751 40754 40757-40758 40765-40766 40774 40790 40795 40807 40809 40811 40817 40822 40824 40827 40831 40846 40850-40853 40869 40871 40881 40883 40885-40886 40888 40890-40891 40894-40895 40899 40909-40910 40919 40925-40927 40929 40931-40934 40937 40941 40945 40954-40955 40958 44375 44380-44381 44394 44404 44412-44414 44442 44444-44445 44454-44455 44459 44465 44470 44474 44477 44484 44487-44488 44491-44492 44500 44502 44511 44515 44519-44520 44527 44529 44535 44537 44542 44607 44630 44639 44645 44652-44653 44657 44662 44664-44665 44668 44670 44697 44702 44715 44719 44728 44736-44737 44742-44743 44754 44763-44764 44771 44778 44780 44783 44792 44796 44800-44801 44803 44806 44809 44821-44822 44825-44826 44828 44832 44838 44843 44847-44848 44850-44851 44864 44867-44868 44876-44877 44883 44886 44895-44896 44899 44901 44905 44912 44915 44918 44921 44932 44936 44948 44953 44960 44974-44975 44980 44982 44986 44988 44995 44999 45001-45002 45010 45015 45033 45050 48474-48475 48477 48493-48494 48553-48554 48558 48561 48563 48568 48570 48572 48575-48576 48584 48586 48595 48597 48604-48605 48611-48612 48614 48616 48623-48624 48626 48628 48637 48726 48729-48731 48741 48743 48748-48749 48751-48753 48755 48762 48766-48767 48833-48836 48844 48846-48847 48849 48852 48856 48859 48862-48863 48868 48870 48881 48885 48895-48896 48900 48903-48904 48909 48912 48919 48924 48926 48929-48931 48937 48940 48942 48944 48948 48956 48959 48963 48965 48971 48975 48977 48979 48985 48995 48998 49004 49007 49013 49017-49018 49020 49025-49030 49032 49043 49048 49050-49053 49056 49059 49061 49063-49065 49074 49076-49077 49079 49082-49085 49088 49090 49093-49094 49096 49098-49099 49101 49107-49108 49111 49113 49116 49122 49132 49137-49138 49142 49147 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/273/31?format=ascii Optical default J/ApJS/273/31/table1 Contact binary system (CB) catalog q [0.02/0.96] Mass ratio; M2/M1 phys.mass;arith.ratio float e_q [0.01/0.4] Uncertainty in q stat.error;phys.mass;arith.ratio float T2/T1 [0.9/1.1] Temperature ratio phys.temperature;arith.ratio float e_T2/T1 [0.003/0.1] Uncertainty in T2/T1 stat.error;phys.temperature;arith.ratio float f [0.01/1] Fill-out factor (2) arith.factor float e_f [0.01/0.3] Uncertainty in f stat.error;arith.factor float Omega [1.67/3.7] Surface potential where {Omega}={Omega}_1_={Omega}_2_ arith.factor;phys.gravity float e_Omega [0.01/0.2] Uncertainty in Omega stat.error;arith.factor;phys.gravity float r1 [0.39/0.7] Primary radius solRad phys.size.radius float e_r1 [0.01/0.1] Uncertainty in r1 solRad stat.error;phys.size.radius float r2 [0.6/0.99] Secondary radius solRad phys.size.radius float e_r2 [0.01/0.04] Uncertainty in r2 solRad stat.error;phys.size.radius float L2/L1 [0/1.3] Luminosity ratio phys.luminosity;arith.ratio float e_L2/L1 [0.01/0.05] Uncertainty in L2/L1 stat.error;phys.luminosity;arith.ratio float R2 [0.6/0.99] Goodness of fit, R^2^ (closer to 1=the better) stat.fit.goodness float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int CRTS CSS identifier (JHHMMSS.s+DDMMSS) meta.id;meta.main char RAJ2000 Right Ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 [-20/70] Declination (J2000) deg pos.eq.dec;meta.main Period [0.1/9.7] Orbital period d time.period;src.orbital double T1init [3536/8440] Primary initial effective temperature (1) K phys.temperature.effective;meta.modelled float Teff1 [3702/8057] Primary effective temperature K phys.temperature.effective float e_Teff1 [146/322] Uncertainty in Teff1 K stat.error;phys.temperature.effective float inc [70/89.6] Inclination angle deg src.orbital.inclination float e_inc [0.3/16.1] Uncertainty in inc deg stat.error;src.orbital.inclination float Simbad Simbad column added by the CDS meta.ref.url char