Carbon stars from LAMOST DR7 J/ApJS/271/12 ivo://CDS.VizieR/J/ApJS/271/12 doi:10.26093/cds/vizier.22710012 CDS Li L. Zhang K. Cui W. Shi J. Ji W. Huo Z. Gao Y. Zhang S. Sun M. 2024-11-06T20:30:55Z 2024-05-27T16:25:48Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr carbon-stars visible-astronomy spectroscopy surveys absolute-magnitude two-color-diagrams Carbon stars are excellent kinematic tracers of galaxies and play important roles in understanding the evolution of the Galaxy. Therefore, it is worthwhile to search for them in a large number of spectra. In this work, we build a new carbon star catalog based on the Large Sky Area Multi-Object Fiber Spectroscopy Telescope (LAMOST) DR7 spectra. The catalog contains 4542 spectra of 3546 carbon stars, identified through line index and near-infrared color-color diagrams. Through visual inspection of the spectra, we further subclassify them into 925 C-H, 384 C-R, 608 C-N, and 1292 Ba stars. However, 437 stars could not be subclassified due to their low signal-to-noise. Moreover, by comparing with the LAMOST DR7 pipeline we find 567 more carbon stars and visually subclassify them. We find that on the J-H versus H-Ks two-color diagram, C-N stars can be reliably distinguished from the other three subtypes. Additionally, by utilizing the Gaia distance, we study the distribution of carbon stars in the H-R diagram and identify 258 dwarf carbon stars by the criterion M_G_>5.0mag. Finally, we present the spatial distribution in Galactic coordinates of the 3546 carbon stars. The majority of C-N, C-R, and Ba stars are distributed at low Galactic latitudes, while most C-H and dwarf carbon stars are distributed at high Galactic latitudes. 2024ApJS..271...12L https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/271/12 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to III/156 : Cool Galactic Carbon Stars, 2nd Edition (Stephenson 1989) III/227 : General Catalog of galactic Carbon stars, 3d Ed. (Alksnis+ 2001) II/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) J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994) J/ApJS/105/419 : Spectral Atlas of Carbon Stars (Barnbaum+ 1996) J/A+A/375/366 : Carbon stars from the Hamburg/ESO survey (Christlieb+ 2001) J/AJ/124/1651 : Faint high-lat. carbon stars SDSS photometry (Margon+, 2002) J/AJ/127/2838 : Faint high-lat. carbon stars SDSS photometry (Downes+, 2004) J/A+A/473/143 : Radial velocities of C stars near Gal. plane (Demers+, 2007) J/ApJ/765/12 : Carbon stars & DQ WDs from SDSS-DR7+DR8 (Green, 2013) J/other/SCPMA/57.176 : Carbon stars & DZ WDs in SDSS spectra (Si+ 2014) J/other/RAA/15.1671 : New carbon stars from LAMOST survey (Si+, 2015) J/ApJS/226/1 : Carbon stars from LAMOST DR2 data (Ji+, 2016) J/A+A/586/A158 : Binary properties of CH and CEMP stars (Jorissen+, 2016) J/ApJS/234/31 : Carbon stars from LAMOST using machine learning (Li+, 2018) J/MNRAS/495/2858 : Carbon stars as standard candles. I. (Ripoche+, 2020) J/AJ/165/154 : Spectroscopic study of Ba and CEMP-s stars (Goswami+, 2023) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/271/12 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/271/12 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/271/12 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/271/12 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/271/12 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/271/12 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/271/12/table3 (Carbon stars discovered in LAMOST DR7) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/271/12/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/271/12/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/271/12/table3? GET text/xml+votable 180.0 50000 true 139.03672 23.126299 0.005555555555555556 Cone search capability for table J/ApJS/271/12/table4 (Sub-type of carbon stars marked as "carbon" by LAMOST DR7 Pipeline) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/271/12/table4? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/271/12/table4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/271/12/table4? GET text/xml+votable 180.0 50000 true 49.792375 62.005787 0.005555555555555556 5/312 325 334 344 362 364 366-367 413 436 440 443 452 482 775-776 1682 3840 5549 5558 5565 5582 5610 5617 5916 5918 5947 5959 5964 5968 5979 5987 5990 5994 5997-5998 6015 6063 6066 6081-6082 6091 6097 6112 6142 6/7 13-14 30 37 49 62 75 88 93 103 127-128 132 137 178 205 219 230-231 236-237 239 251 253-254 261 285 294 307 309-311 316 321 323 342 345-348 351 353-357 366 372 379 382 397-398 401 438 444 457 461 465-466 477 497 501 543 565 592 607 620 627 658 660 668 676 683 690 716 729-730 743 753 756 760-761 771 774 790 794-795 808 824 831 833 843 848 856 861 865 871-873 878 880 882 885 888-889 891 909 919 925 929-930 961-963 968-969 971 978 981 983 985 987 991 995 1003-1004 1008 1013 1021 1024 1029-1032 1041-1043 1047 1051 1054 1057 1059 1063-1065 1068 1072 1074 1078 1084-1085 1088 1095 1100-1101 1103 1111 1117 1119 1127 1129-1130 1138-1139 1148 1154-1155 1158 1161-1162 1165 1171 1175 1177 1186 1188 1191 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24412-24413 24418 24422 24424 24426 24428 24433-24435 24441 24444-24446 24453 24458-24460 24462-24463 24465-24466 24468 24470-24472 24475-24476 24478 24482-24484 24488-24490 24492-24493 24495-24497 24499 24504-24506 24509 24512 24515-24516 24518-24521 24523-24526 24529-24530 24532 24534-24535 24540 24543 24545 24547 24553 24558-24560 24563 24566 24574 25558 25570 25573-25574 25722 25767 25833 25836 25838 25844 25854 25867 25907-25908 25916-25918 25920-25921 25925 25938 25943 25950 25969 25979-25981 25984 25999 26001 26015 26020-26021 26026 26031-26032 26046 26050 26052 26057 26059 26073 26081-26082 26085 26094 26098 26117 26140 26153 26156 26159 26179 26191 26200 26203 26221 26225 26232 26250 26255 26262 26270 26275 26293 26296 26299 26302 26308 26313 26320-26321 26323 26325 26330 26337 26339-26340 26357-26358 26365 26383 26402 26405-26406 26409 26414 26420 26431-26432 26435 26437 26441 26445 26450 26468 26476-26477 26482-26483 26488 26492-26493 26497 26514 26523 26526 26535 26540-26542 26544 26547 26550 26555 26576 26584 26586 26588 26590-26591 26597 26608 26611 26619-26621 26747 26839 26842 26858 26893 26901 26921 26931 26935 26937 26949 26952 26956 26960 26963 26965 26972 26983-26984 26990 26999-27000 27005 27016 27038 27063 27065 27068-27069 27079 27090 27103 27111 27196-27197 27205 27210 27214 27247 27260 27268 27279 27281 27287 27302 27318 27327 27331 27338 27348 27354 27361 27369 27384 27387 27407-27408 27452 27483 27485-27486 27495 27500 27508 27526 27530-27531 27540 27545 27577 27586 27594 27610 27615 27618 27621 27636 27649 27651 27675 27677 27683-27684 27694 27700 27715 27731 27737 27759 27785 27790 27792 27820 27823 27838 27846-27847 27851 27856 27868 27870-27871 27873 27906 27914-27915 27917 27919 27934 27943 27950 27989-27990 27994 27999 28012-28014 28041 28056 28059 28063 28065 28067 28069 28077 28084 28088 28105 28118 28122 28127 28139-28141 28161 28171 28183 28185 28196 28199 28201 28207 28212 28215 28226 28238 28264 28270 28279 28310 28313-28314 28318 28320 28340 28359 28383 28395 28397 28399 28412 28430 28441 28443 28447 28462 28464 28468-28469 28477 28483 28485 28489 28491 28526 28534 28538 28548 28569 28571 28577-28578 28580 28585 28604 28634 28637 28643 28647 28659 30198 30338 30344 30351 30399 30406 30448-30449 30454-30455 30460 30462 30497 30508 30551 30627 30935 31003 31005 31031 31036 31039 31058 31065-31066 31068-31069 31071 31074 31081 31085 31092-31094 31100 31107-31108 31113 31124-31125 31133 31159 31167 31170 31182 31187 31231 31251-31252 31294 31296-31297 31302 31306 31309 31327 31330 31343 31381 31387-31388 31391 31393 31396 31403 31406 31430-31431 31435-31437 31443 31445 31448 31452-31453 31456-31458 31467 31474 31483 31488 31505 31511-31512 31521 31531 31537 31544 31550 31590 31593 31601 31612 31616-31617 31620-31621 31627 31634 31642 31644 31650 31652 31661 31663 31666 31675 31679 31687 31710-31712 31717 31719-31720 31725 31729 31734 31739 31749 31753-31755 31779-31782 31795 31800 31890 31901 31907 31912 31921 31923 31925-31926 31929 31933-31934 31941 31958 31964 31988 31992 31997 32060 32137 32173 32264 32267 32271 32287 32292 32305 32310 32312 32320 32323 32329-32330 32356-32357 32363 32365 32369-32370 32372 32389 32411 32426 32477 32505 32507 32517 32523 32551 32556 32568 32649 32659 32663 32665 32670 32693 32702 32725 32730 32756 36850 36862 40943 40945 40952 45034 45036-45038 45040 45049 45053 45055 49005 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/271/12?format=ascii Optical default J/ApJS/271/12/table3 Carbon stars discovered in LAMOST DR7 recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int ObsID [103194/746512153] Observation ID meta.id;obs long LAMOST Star designation (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char RAJ2000 Right ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 [-8.3/79] Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main Sclass Spectral sub-class as given by LAMOST DR7 pipeline src.spType char Gmag [-5.93/13]? Absolute G magnitude mag phys.magAbs;em.opt float nullable GBP-GRP [0.15/4.6]? Reddening-corrected Gaia DR3 GBP-GRP magnitude mag phot.color;em.opt.B;em.opt.R float nullable Dwarf [0/1]? 1=dwarf star (258 occurrences); 0=giant (3224 occurrences) meta.code.class float nullable SpType Spectral subtype (1) src.spType char Gaia Display data from Gaia DR3 (I/355) within 3" meta.ref.url char
J/ApJS/271/12/table4 Sub-type of carbon stars marked as "carbon" by LAMOST DR7 Pipeline recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int ObsID [7011200/746206116] Observation ID meta.id;obs long LAMOST Star designation (JHHMMSS.ss+DDMMSS.s) meta.id;meta.main char RAJ2000 Right ascension in decimal degrees (J2000) deg pos.eq.ra;meta.main DEJ2000 [-8.8/62.1] Declination in decimal degrees (J2000) deg pos.eq.dec;meta.main SpType Spectral sub-type (1) src.spType char