Contact binaries in LAMOST DR7 J/other/RAA/20.1 ivo://CDS.VizieR/J/other/RAA/20.163 doi:10.26093/cds/vizier/dx/cakbgd CDS Qian S.-B. Zhu L.-Y. Liu L. Zhang X.-D. Shi X.-D. He J.-J. Zhang J. 2026-02-10T20:07:46Z 2022-04-20T07:14:46Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr multiple-stars effective-temperature metallicity radial-velocity visible-astronomy Contact binaries consist of two strongly interacting component stars where they are filling their critical Roche lobes and sharing a common envelope. Most of them are main-sequence stars, but some of them are post main-sequence systems. They are good astrophysical laboratories for studying several problems such as the merging of binary stars, evolution of the common envelope, the origin of luminous red nova outbursts and the formation of rapidly rotating single stars with possible planetary systems. A large number of contact binary candidates were detected by several photometric surveys around the world and many of them were observed by the LAMOST spectroscopic survey. Based on follow-up observations, the evolutionary states and geometrical structures of some systems were understood well. In this review, we will introduce and catalog new stellar atmospheric parameters (i.e., the effective temperature (Teff), the gravitational acceleration (log(g)), metallicity ([Fe/H]) and radial velocity (Vr)) for 9149 EW-type contact binaries that were obtained based on low- and medium-resolution spectroscopic surveys of LAMOST. Then we will focus on several groups of contact binary stars, i.e., marginal contact binary systems, deep and low-mass ratio contact binary stars, binary systems below the short-period limit of contact binaries and evolved contact binaries. Marginal contact binaries are at the beginning of the contact stage, while deep and low-mass ratio contact binary stars are at the final evolutionary stage of tidally locked binaries. Several statistical relations including the period-temperature relation are determined well by applying LAMOST data and their formation and evolutionary states are reviewed. The period-color relation of M-type binaries reveals that there are contact binaries below the short-period limit. Searching for and investigating contact binaries near and below this limit will help us to understand the formation of contact binary systems and a new prediction for the short-period limit is about 0.15 d. Some evolved contact binaries were detected by the LAMOST survey where both components are sub-giants or giants. They provide a good opportunity to investigate evolution of the common envelope and are the progenitors of luminous red novae like V1309 Sco. 2020RAA....20..163Q https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/20.163 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/156 : LAMOST DR7 catalogs (Luo+, 2019) http://dr7.lamost.org : LAMOST DR7 Home Page https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/20.163 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/20.163 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/20.163 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/20.163 https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/20.163 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/20.163 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/other/RAA/20.163/table3 (Mean stellar atmospheric parameters of EWs observed in LSR) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/20.163/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/20.163/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/20.163/table3? GET text/xml+votable 180.0 50000 true 0.0271667 35.3668611 0.005555555555555556 Cone search capability for table J/other/RAA/20.163/table4 (Mean stellar atmospheric parameters of EWs observed in MRS) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/20.163/table4? https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/20.163/table4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/20.163/table4? GET text/xml+votable 180.0 50000 true 0.2980417 9.0781944 0.005555555555555556 Cone search capability for table J/other/RAA/20.163/table1 (Catalog of stellar atmospheric parameters for 8520 EWs determined with LRS) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/20.163/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/20.163/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/20.163/table1? GET text/xml+votable 180.0 50000 true 0.0271667 35.3668611 0.005555555555555556 Cone search capability for table J/other/RAA/20.163/table2 (Catalog of stellar atmospheric parameters for 629 EWs determined with MRS) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/20.163/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/20.163/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/20.163/table2? GET text/xml+votable 180.0 50000 true 0.2980417 9.0781944 0.005555555555555556 4/153 422 433 5/79 87 92 201 205 218 223 238 247 257 290 294 296-297 300 302 312 345 389 394-395 397 406 416-417 446 455 517 557 563 565 569 583 600 609 616 619 623 637 643 648 650-652 658-661 664 666 668 672 674 678 685 696 704 706 1024 1029 1158 1160-1162 1164 1166-1167 1173-1175 1181 1184-1185 1187-1188 1190 1193-1196 1198-1200 1202 1233 1261 1426 1435 1539-1540 1542 1544-1545 1549 1551-1552 1556 1559 1563 1567 1581-1582 1587-1588 1590-1592 1596 1634 1641 1645 1647-1648 1671 1676-1677 1679-1680 1682-1683 1685-1687 1692 1701 1712 1730-1731 1744 1753 1765-1767 1779 1928 2354 2413 2581 3101 3103 3146 3165 3169 3359 3404 3646 3688-3690 3693 3733 3739 3778 3780-3782 3792 5002 5077 5084-5085 5476 5551 5562 5599 5725 5731-5732 5749-5750 5801 5839 5847 5854 5896 5956 6018 6026-6027 6030 6048-6049 6051 6054 6056-6057 6059-6061 6063-6064 6072 6074 6/0 4 9 14-16 18 26 35-37 39-40 50 77 81 88 90 110 129-132 138-139 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11298-11299 11312 11315 11327 11329 11332 11336-11337 11340 11343 11345 11347 11350-11354 11356-11358 11366-11367 11376 11407 11411-11412 11418 11424 11430 11436 11438 11449 11456 11460 11466 11468 11489 11531 11539 11552 11554 11589 11597 11600-11601 11609 11622 11779 11781 12022 12171 12195 12200 12288-12289 12292 12294-12295 12303 12312 12314 12327 12333 12338-12339 12348 12353 12356 12359 12361 12364 12367 12370 12372-12374 12377 12379-12380 12383 12401 12403 12411 12436 12448 12457-12458 12480 12493 12495 12498 12500-12502 12506 12509-12511 12517 12528-12529 12532-12533 12545 12547 12549 12552 12555-12556 12560-12561 12563 12566-12567 12569 12573 12577-12580 12590 12592-12593 12601-12602 12605-12606 12609 12612-12614 12616 12634 12642 12646 12649-12650 12653 12657-12658 12664 12666-12668 12673-12674 12680 12683 12685-12688 12696 12699 12702 12708 12721 12724 12726 12728-12729 12740 12747 12752-12754 12757 12773 12776 12779 12784 12786 12791 12834 12862-12863 12949 12992 13000 13075 13078 13122 13137-13139 13146-13148 13156 13158-13159 13164 13176 13201 13204 13213 13248 13261 13263 13280 13289 13293-13295 13297 13316-13318 13328 13330-13332 13336 13340 13342 13346 13353-13354 13366 13368 13371 13373 13379-13380 13382-13383 13389-13390 13393-13394 13396 13400-13401 13404-13405 13414 13417 13419 13424-13426 13428-13429 13432 13434 13440 13446 13451 13457-13458 13460 13462 13465 13473 13475 13479 13483 13488 13492 13504 13511 13514 13516 13524-13525 13527 13529 13534-13535 13541 13543 13554 13571 13573-13574 13576 13580 13583-13584 13587 13590 13593-13596 13598 13602 13604-13605 13607-13608 13611 13620 13629-13632 13640 13645 13650-13653 13656-13658 13660 13664 13666-13667 13675 13679 13692-13693 13695 13697 13699 13708 13715 13718 13724 13729 13732 13751 13753 13755 13757 13759 13763 13782-13783 13789 13800 13802 13806 13826-13827 13833 13848 13850 13854 13856-13857 13861-13862 13865 13867 13869 13871 13874 13881 13884 13902 13953 13957-13958 13960 13964 13970 13982 14004 14016 14024-14025 14027 14038 14051 14073 14087 14093 14129 14140-14141 14151 14155 14167 14187 14198-14199 14245 14263-14264 14269 14281-14282 14287 14302 14320 14419 14421 14466 14468 14473 14498 14509-14510 14515-14516 14523 14542 14553 14558-14559 14563-14564 14566-14567 14572 14575 14578-14579 14582-14583 14589-14591 14594 14613 14631 14641 14658 14661 14665-14666 14669 14671 14681 14683 14691 14694 14701 14703 14706 14726 14734-14735 14738 14744 14746 14750-14751 14765 14767-14768 14770-14771 14776-14777 14779 14781-14783 14794-14795 14799 14815 14819 14824-14825 14827-14828 14830-14831 14835 14837 14848 14856 14858 14866 14870 14873 14891 14899 14901 14908 14915-14916 14918-14921 14923-14926 14928 14930-14931 14938 14940-14942 14946-14947 14950 14955 14961 14963-14964 14967 14970-14971 14973 14975 14985-14986 14989 14996-14997 15001 15018 15020 15035-15037 15041-15043 15045-15046 15051 15058-15061 15066-15067 15077-15078 15083 15086 15088 15101-15102 15104-15106 15108-15109 15111 15117 15119 15132-15134 15136 15139 15141-15146 15148 15153-15157 15159-15161 15172 15176 15199-15200 15232 15258-15259 15274 15276-15277 15280 15284-15285 15294 15298 15305 15315-15316 15407 15430 15439 15443 15488 15496 15499 15502 15775 15881 16000 17589 17634 17648 17650 17660 17716 17719 17727 17732 17742 17751 17755 17757-17758 17760 17763 17782 17784-17785 17789 17844 17849-17852 17867 17872-17873 17875 17877-17878 17881 17891 17903 17907 17915 18005-18006 18008 18015 18028 18038-18039 18041 18094 18103 18108 18123 18126 18129 18137 18141 18143-18144 18150 18184 18186 18191 18197 18207-18208 18222 18227 18229 18234 18237 18247 18257 18260 18272 18290 18293 18305 18307 18318 18320-18322 18338 18347-18348 18352 18370 18375 18381-18383 18396 18402-18403 18406 18408 18410 18412 18663 18671 18675 18678 18680 18682 18687 18777 18779 18782 18789 18795 18800 18802 18808-18810 18814 18827 18837 18839 18846 18850-18851 18855 18859 18861 18863 18865 18868 18872 18884 18888 18900 18902 18907 18909 18912 18920-18921 18923-18924 18933 18959 18979-18980 18985-18988 18996 19014 19017 19025 19027 19029 19031-19032 19047 19058 19065 19067 19084-19085 19094 19098-19100 19103 19111 19113-19114 19116 19118 19123 19128 19130 19134-19135 19138 19140 19146-19150 19155 19157 19162 19165 19168 19170-19171 19177 19182-19183 19192 19195 19197 19199-19200 19207 19209 19213 19215 19219 19223 19227 19230 19241 19248-19249 19251 19253 19257 19259 19266 19274 19278 19280 19299 19301 19306-19307 19313 19316-19317 19322 19330 19333 19340 19348 19357 19361-19363 19365 19367 19370-19371 19374 19378 19383 19387-19388 19390 19392 19394 19404-19405 19410 19414 19417 19421-19423 19433 19438-19439 19443 19445 19447-19448 19450-19452 19458 19465-19466 19475 19480 19485 19496 19506 19519-19520 19528 19532-19533 19536 19568 19587 19611 19620-19621 19628-19629 19641 19649 19668 19670 19679 19694 19697-19698 19737 19741-19742 19754-19755 19758 19768-19769 19788-19789 19799 19809 19816 19821-19822 19824 19860 19864 19871 19873 19883 19885 19888 19891 19897-19898 19903 19916-19917 19919 19923 19926 19934 19937-19940 19942 19947-19948 19952 19954 19959-19960 19964-19965 19971 19975 19986 19988 19992 19994 19996 19999-20000 20002 20004-20005 20013 20017 20020-20021 20023 20029 20031 20043 20046-20047 20064 20070 20074 20078 20090 20096-20097 20111 20113 20118-20119 20135-20137 20141-20143 20153 20155 20158 20167 20169 20184 20186-20187 20189-20190 20202 20205 20207 20210 20212-20213 20215 20218-20220 20222-20223 20229 20244 20254-20255 20266 20276 20282 20288-20289 20291-20293 20296 20302 20304-20305 20307 20314 20316 20318-20319 20322-20323 20331-20334 20345 20347 20349-20351 20353 20355 20360 20365 20369 20381 20385 20392-20393 20397 20399-20400 20403-20406 20411-20412 20417-20418 20420 20423-20424 20426-20427 20431 20436 20438-20441 20443 20445-20446 20453-20454 20458 20460-20461 20463-20464 20466-20467 20469-20472 20476-20478 21356 21374-21375 21425 21433-21434 21443 21445-21447 21450 21467 21481-21482 21484 21487 21493 21496-21497 21502-21503 21597-21598 21717 21723 21725 21749 21754 21756 21758 21760 21762 21769-21770 21780-21781 21788 21791-21792 21794 21801 21803 21814 21817 21822-21823 21829 21834 21847 21851 21853 21859 21862 21867 21873 21879 21883-21884 21889 21892 21911 21919 21925 21929 21932 21937 21946 21950 21952-21953 21960 21967-21969 21974 21983 21987-21989 21991 21993 21995-21996 22001 22004 22007 22011 22031 22034 22041 22081 22101 22107 22165 22176 22178 22180-22181 22184 22188-22189 22192 22195-22197 22223 22227-22228 22230 22232 22235-22236 22241-22242 22247 22255 22260 22269 22286 22289 22294 22320 22332-22333 22335-22338 22341 22343 22352-22353 22363 22378 22381-22382 22386-22387 22389-22392 22394-22395 22409-22410 22413-22415 22417 22422 22424-22425 22427-22428 22431-22433 22438 22443-22445 22447-22448 22451-22452 22458-22461 22468 22470 22472 22474 22478 22482 22485-22487 22490-22491 22495 22497-22498 22502 22506-22507 22509 22512-22513 22517 22520 22523 22709 22711 22730 22739 22747 22758 22760-22761 22770 22772 22774 22779 22790 22808 22814-22815 22821 22823 22831-22832 22834 22837 22841-22842 22848 22850-22851 22856 22860 22864-22865 22868 22874-22875 22877-22878 22881-22882 22884-22885 22887 22889 22896-22897 22899 22905-22908 22910-22911 22916 22918-22919 22923 22938-22940 22942-22944 22947 22949 22951 22953-22954 22957 22959-22961 22963 22965-22970 22973-22975 22982-22983 22989-22990 22993-22995 23004 23006-23007 23010-23013 23015-23016 23018 23026-23028 23031-23032 23035-23037 23039 23079 23085 23089-23090 23098 23106 23111 23120 23124 23127 23134-23135 23173 23180 23184 23194-23195 23197 23199 23208 23210 23212 23220 23231 23235 23237 23239 23242-23246 23250-23253 23256-23257 23262-23263 23266 23271 23275 23279 23284-23285 23294 23296 23305 23308-23310 23316 23320 23322 23325-23327 23330 23332 23334-23335 23339-23341 23343 23345 23347-23350 23353 23355 23361 23368-23369 23371-23372 23380-23382 23387 23392 23400-23401 23403-23405 23408-23409 23412-23414 23420-23421 23434-23435 23438 23441 23443-23445 23447 23449-23451 23455 23457 23461 23463-23465 23467 23472-23473 23475 23479 23485 23489-23490 23493-23494 23496-23497 23503 23505 23508-23510 23514 23516 23541 23543 23546 23549 23552 23558-23559 23562-23564 23571 23573 23577-23578 23589-23592 23596-23597 23601 23604 23607-23608 23615-23617 23620-23621 23623 23625 23627 23631 23633 23637 23639 23643 23648-23649 23655-23656 23663-23664 23666 23670 23673 23676 23678 23686-23690 23697 23701 23703 23706 23710 23712-23713 23715-23716 23718-23719 23721 23729 23731-23732 23735 23741 23743 23745 23748 23750 23752 23758 23760-23761 23766-23767 23777 23779-23780 23786-23787 23790 23794 23798-23799 23803-23806 23809 23813-23814 23820 23822-23823 23828-23830 23833 23838-23839 23844 23847 23851-23853 23855-23857 23859-23860 23868 23872 23874 23883 23885 23895 23903-23904 23908 23910 23912-23913 23916 23918 23921-23922 23924-23925 23929-23930 23932 23937-23938 23942 23944 23953 23955 23958 23965 23972 23975 23977 23980 23982-23983 23985 23987 23990-23994 23998 24002 24007 24012 24016-24017 24021 24024-24025 24027 24031 24040-24042 24048 24050 24058-24059 24063 24065-24066 24068 24076-24077 24079-24080 24082-24083 24087 24090-24092 24095-24096 24098-24100 24102-24103 24113-24114 24116-24117 24124 24126-24129 24131 24136 24138-24139 24144 24146 24153-24154 24159 24164 24168-24170 24173-24174 24178 24180-24181 24186 24191 24201 24203 24208 24210-24211 24213-24214 24220 24222-24223 24232-24234 24249-24251 24262 24266-24267 24271 24283 24293-24295 24303 24306 24314 24320-24321 24323-24324 24330-24331 24335-24336 24339 24341 24343 24358 24361 24363-24364 24371 24377 24381 24383-24385 24387-24389 24391 24396 24398 24401 24408 24411 24417 24419 24434 24441-24442 24444 24446-24449 24451 24453-24454 24458-24459 24465 24468 24470-24471 24476 24478-24479 24482-24483 24486-24487 24490 24497-24498 24501 24508 24511 24514 24517-24520 24522-24523 24530-24531 24533-24536 24538 24541-24542 24544 24547 24553 24557 24559 24566-24567 24571-24573 25445 25459 25471 25535 25554 25573 25578 25588 25590-25592 25598-25599 25718 25724 25766 25787 25798 25815 25820 25825 25834-25835 25837 25845-25846 25850 25852 25855 25906 25911 25913 25925 25938 25942-25945 25949 25958 25960-25961 25971 25973 25981 25988 25991 25996 25998 26000 26012 26018 26028 26032 26035 26038 26042 26049 26051-26054 26056 26058 26061-26062 26064 26067 26072 26078 26087-26088 26092-26093 26095 26097 26102 26106 26110 26122 26135 26141 26161 26165 26169 26173 26178 26190 26208 26215 26221 26231 26234-26235 26239 26245 26262 26265-26266 26270-26271 26275 26279 26281 26294 26296 26301 26307 26312 26320 26332 26336 26338 26354 26358 26364 26377 26380 26383 26385-26386 26388 26390 26392 26401 26425 26429 26431 26436-26437 26441 26445 26451 26457 26459 26462 26474 26478 26486 26491 26493 26495 26497 26505 26516 26523 26530 26536 26542 26545 26555 26560 26566 26571 26577 26579 26582 26584-26585 26587 26596 26604-26605 26608 26611 26615-26617 26619 26815 26839 26853 26862 26874 26891 26900 26916 26919 26921 26937 26944 26947 26961 26967 26969 26974 26977 26993 26997 27003-27004 27007 27011-27013 27017 27019 27022 27027 27046 27050 27052-27053 27055 27059 27062 27086 27090 27094 27101-27102 27104 27113 27122 27132-27133 27138 27148 27158 27167 27172 27177 27181-27182 27185 27188-27189 27191 27199-27200 27211-27213 27216 27224 27226 27234 27236 27238 27249-27250 27260 27266 27268 27277 27280-27281 27290-27291 27298 27301 27303 27305 27312-27313 27316 27318 27321 27327-27328 27334 27346-27347 27349-27351 27355 27357 27359 27367 27369-27370 27376-27377 27389 27399 27402-27404 27408 27410-27411 27414 27418 27422 27425 27428 27439 27441 27444-27445 27448 27451 27454 27476-27477 27479 27481 27483 27505 27513 27515 27520 27522 27524-27525 27532 27541-27542 27545 27547-27550 27552 27558 27562 27564 27570 27574-27577 27588-27589 27591 27593-27595 27599 27602-27603 27609 27629 27632 27637 27639 27645 27649-27650 27658 27662 27675 27680-27681 27686 27693 27699 27704 27707-27708 27721 27723 27727 27729 27737 27739 27749 27756 27767 27770 27782 27792 27794-27795 27808 27812 27816 27821-27822 27825 27829 27836 27845 27855 27881 27886 27890 27911 27913 27915 27917 27922 27930 27939 27942-27943 27948 27954 27971 27973 27988 27991 27995 28005 28008 28014 28020-28022 28025 28033-28034 28044 28064 28066 28068-28069 28071 28076 28084 28110 28112 28115 28141 28143 28148-28149 28156 28163 28169 28177 28186 28190 28201 28203 28206 28232 28235-28236 28239 28244 28258 28266 28302 28307 28320 28329 28331-28332 28341 28347-28348 28351 28357-28358 28369 28374 28377 28379 28383 28390 28393 28396 28398 28401 28406 28410-28411 28414 28432 28440 28442-28443 28445 28448 28452 28463 28480 28483 28485 28493-28494 28498-28500 28502 28504 28506 28512 28515 28517 28524 28526 28535 28540 28551 28569 28571 28573 28585 28589 28591 28595 28618 28632 28634 28636-28637 28641 28669 28671 29567 29943 29945 30174 30193 30195 30398 30445 30462 30591 30846 30939 30943 30970 31007 31030-31031 31038-31039 31057 31063 31068 31089 31097 31099 31108 31119 31129 31134 31145 31159 31170 31172 31179-31180 31182-31183 31186 31203 31207 31209-31210 31223 31229 31296 31300 31302 31312 31315 31320 31325 31336 31352 31354 31358 31369 31388 31397 31428 31430 31433-31435 31437 31439 31441-31442 31444-31446 31459-31460 31472-31473 31478-31479 31484 31490-31491 31494 31499 31507 31515 31519 31527 31530-31531 31534-31535 31539 31544 31547 31549-31551 31564 31576 31587 31594 31596 31598 31602 31610 31612-31613 31617 31619-31620 31623-31624 31629 31631 31633 31635 31647 31650 31652-31653 31656 31671 31675 31677 31682 31684 31686 31691 31695 31697 31699 31702-31703 31714 31717 31719 31725 31730 31732 31735 31748 31751 31761 31770 31778 31780 31783-31784 31795 31804 31816 31858 31861 31873 31875 31880 31886 31900 31905 31908 31912 31915 31920 31924 31931 31933 31950 31953-31955 31963-31964 31967 31974 31981 31989-31990 31996 31999 32134 32156 32186 32190 32214-32215 32246 32262 32270-32271 32273 32275 32277 32282-32283 32285-32286 32294-32295 32297 32300-32302 32307 32309-32312 32315 32320 32324-32325 32329 32333 32335 32339 32348 32350 32356-32358 32360 32368 32374 32376 32379 32386 32390 32403 32411-32412 32415 32424 32437 32442 32448 32450 32454 32456 32466 32470 32480 32483 32486 32492-32493 32500-32502 32505 32509-32510 32513 32520-32521 32526 32534 32544-32545 32551 32554 32561 32567 32574 32581 32587 32591 32597 32603 32616 32623 32625-32626 32640 32643-32646 32650 32655-32656 32659 32662 32665 32668-32669 32689 32691-32692 32700-32701 32705 32719 32724-32725 32729 32736 32738 32746-32747 32749 32752 32760 36719 36728 36805 36809 36843-36844 36854 36858 36861 40916 40918 40921-40923 40926 40939-40940 40946 40948 40957-40958 44923 44982 45010 45023 45043 45045 45050 45053 48988 49104 49109 49117 49141 49149 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/20.163?format=ascii Optical default J/other/RAA/20.163/table3 Mean stellar atmospheric parameters of EWs observed in LSR e_logg ? The mean value of the error of the gravitational acceleration Log(g) log(cm.s**-2) stat.error float nullable [Fe/H] The mean value of metallicity phys.abund.Z;stat.mean float e_[Fe/H] ? The mean value of the error of Metallicity stat.error;phys.abund.Fe float nullable recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Variable star identifier meta.id;meta.main char RAJ2000 Right ascension (J2000.0) pos.eq.ra;meta.main DEJ2000 Declination (J2000.0) pos.eq.dec;meta.main Porb ? Orbital period d time.period double nullable u_Porb Uncertainty flag on Porb meta.code.error char N The observed times by LAMOST meta.number int SpType The mean value of spectral type (only in table1) src.spType char Teff The mean value of the effective temperature K phys.temperature.effective;stat.mean float e_Teff ? The mean value of the error of the effective temperature K stat.error;phys.temperature.effective float nullable logg The mean value of the gravitational acceleration log(cm.s**-2) phys.gravity float
J/other/RAA/20.163/table4 Mean stellar atmospheric parameters of EWs observed in MRS recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RAJ2000 Right ascension (J2000.0) pos.eq.ra;meta.main DEJ2000 Declination (J2000.0) pos.eq.dec;meta.main Porb ? Orbital period d time.period double nullable u_Porb Uncertainty flag on Porb meta.code.error char N The observed times by LAMOST meta.number int SpType The mean value of spectral type (only in table1) src.spType char Teff The mean value of the effective temperature K phys.temperature.effective;stat.mean float e_Teff ? The mean value of the error of the effective temperature K stat.error;phys.temperature.effective float nullable logg The mean value of the gravitational acceleration log(cm.s**-2) phys.gravity float e_logg ? The mean value of the error of the gravitational acceleration Log(g) log(cm.s**-2) stat.error float nullable [Fe/H] The mean value of metallicity phys.abund.Z;stat.mean float e_[Fe/H] ? The mean value of the error of Metallicity stat.error;phys.abund.Fe float nullable Name Variable star identifier meta.id;meta.main char
J/other/RAA/20.163/table1 Catalog of stellar atmospheric parameters for 8520 EWs determined with LRS recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Variable star identifier meta.id;meta.main char RAJ2000 Right ascension (J2000.0) pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000.0) pos.eq.dec;meta.main Type Variability type, as in GCVS catalog meta.id char e_[Fe/H] ? The error of Metallicity stat.error;phys.abund.Fe float nullable RV Radial velocity (only in table1) km/s phys.veloc;pos.heliocentric float e_RV ? The error of radial velocity (only in table1) km/s stat.error float nullable [Fe/H] Metallicity phys.abund.Z float Porb ? Orbital period d time.period double nullable u_Porb Uncertainty flag on Porb meta.code.error char Date Observed date time.epoch char SpType Spectral type (only in table1) src.spType char Teff The effective temperature K phys.temperature.effective float e_Teff The error of the effective temperature K stat.error;phys.temperature.effective float logg The gravitational acceleration log(g) log(cm.s**-2) phys.gravity float e_logg ? The error of the gravitational acceleration log(g) log(cm.s**-2) stat.error float nullable
J/other/RAA/20.163/table2 Catalog of stellar atmospheric parameters for 629 EWs determined with MRS recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Variable star identifier meta.id;meta.main char Date Observed date time.epoch char RAJ2000 Right ascension (J2000.0) pos.eq.ra;meta.main DEJ2000 Declination (J2000.0) pos.eq.dec;meta.main Type Variability type, as in GCVS catalog meta.id char Porb ? Orbital period d time.period double nullable u_Porb Uncertainty flag on Porb meta.code.error char SpType Spectral type (only in table1) src.spType char Teff The effective temperature K phys.temperature.effective float e_Teff The error of the effective temperature K stat.error;phys.temperature.effective float logg The gravitational acceleration log(g) log(cm.s**-2) phys.gravity float e_logg ? The error of the gravitational acceleration log(g) log(cm.s**-2) stat.error float nullable [Fe/H] Metallicity phys.abund.Z float e_[Fe/H] ? The error of Metallicity stat.error;phys.abund.Fe float nullable RV Radial velocity (only in table1) km/s phys.veloc;pos.heliocentric float e_RV ? The error of radial velocity (only in table1) km/s stat.error float nullable