Study of PRC stars with LAMOST DR7 J/MNRAS/512/1710 ivo://CDS.VizieR/J/MNRAS/512/1710 doi:10.26093/cds/vizier/bg-g0-1ne CDS He X.-J. Luo A.-L. Chen Y.-Q. 2026-08-03T07:31:20Z 2025-03-28T09:58:59Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr milky-way-galaxy late-type-stars visible-astronomy spectroscopy infrared-photometry astrometry radial-velocity stellar-masses metallicity effective-temperature stellar-ages stellar-distance Although red clump (RC) stars are easy to identify due to their stability of luminosity and colour, about 20-50 per cent are actually red giant branch (RGB) stars in the same location on the HR diagram. In this paper, a sample of 210504 spectra for 184318 primary RC (PRC) stars from the LAMOST DR7 is identified, which has a purity of higher than 90 per cent. The RC and the RGB stars are successfully distinguished through LAMOST spectra (R ~ 1800 and signal-to-noise ratio >10) by adopting the XGBoost ensemble learning algorithm, and the secondary RC stars are also removed. The SHapley Additive exPlanations (SHAP) value is used to explain the top features that the XGBoost model selected. The features are around Fe5270, MgH & Mg Ib, Fe4957, Fe4207, Cr5208, and CN, which can successfully distinguish RGB and RC stars. The XGBoost is also used to estimate the ages and masses of PRC stars by training their spectra with Kepler labelled asteroseismic parameters. The uncertainties of mass and age are 13 and 31 per cent, respectively. Verifying the feature attribution model, we find that the age-sensitive element XGBoost is consistent with the literature. Distance of the PRC stars is derived by KS absolute magnitude calibrated by Gaia EDR3, which has an uncertainty of about 6 per cent and shows the stars mainly located at the Galactic disc. We also test the XGBoost with R ~ 250, which is the resolution of the Chinese Space Station Telescope under construction; it is still capable of finding sensitive features to distinguish RC and RGB. 2022MNRAS.512.1710H https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/512/1710 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/ApJS/236/42 : Asteroseismology of ~16000 Kepler red giants (Yu+, 2018) VII/233 : 2MASS All-Sky Extended Source Catalog (XSC) (IPAC/UMass, 2003-2006) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) III/284 : APOGEE-2 data from DR16 (Johnsson+, 2020) V/156 : LAMOST DR7 catalogs (Luo+, 2019) I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018) I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021) J/ApJS/245/34 : Abundances for 6 million stars from LAMOST DR5 (Xiang+, 2019) J/MNRAS/466/3344 : Red-giant stars classification (Elsworth+, 2017) J/ApJ/858/L7 : Red clump stars selected from LAMOST and APOGEE (Ting+, 2018) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/512/1710 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/512/1710 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/512/1710 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/512/1710 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/512/1710 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/512/1710 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/512/1710/table (LAMOST DR7 spectroscopic and physical properties of 184318 identified primary RC) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/512/1710/table? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/512/1710/table? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/512/1710/table? 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10974-10976 10978-10981 10983 10993 10995-10996 10999 11002 11004-11005 11012 11018 11020 11022-11023 11025-11027 11030 11032 11035 11037-11038 11045 11058-11059 11061-11063 11069-11072 11074-11075 11077-11078 11080 11085-11086 11088 11090 11092 11094-11095 11097-11099 11107 11117-11120 11124 11130-11133 11137 11139-11140 11142-11143 11146 11148 11150-11152 11155 11160 11163 11167 11170 11175 11180 11182-11185 11187 11196 11200 11202-11204 11206-11208 11210-11213 11226 11268 11271 11273 11275 11277 11279-11281 11283 11288 11290-11291 11296-11297 11299-11300 11302-11305 11307 11315-11317 11319-11320 11322-11324 11326 11328-11330 11337-11340 11342-11343 11346-11348 11350 11356 11358-11362 11368-11369 11372-11374 11381 11384 11393 11395 11399 11402 11409 11412 11414-11415 11417 11420-11421 11423 11425-11427 11429-11431 11433 11436 11438-11439 11441-11443 11460 11463 11465 11468-11469 11488-11490 11528-11529 11531-11534 11536-11538 11556 11776 11778-11779 11784-11785 11808-11809 12016-12017 12194 12296-12297 12299 12304 12306-12307 12312-12313 12325 12327 12333 12339 12344-12345 12350 12353 12355 12361 12388-12389 12409 12433-12434 12436 12438 12480 12487 12493-12495 12497-12499 12501-12503 12517 12519 12536-12537 12540 12548-12550 12556 12558-12559 12569 12572-12574 12599 12616 12621 12623 12629 12632 12634-12635 12639 12642 12645-12647 12700-12702 12716-12717 12724 12726-12727 12736-12738 12744 12746-12747 12749 12751 12765 12767-12768 12770-12771 12774-12775 12780 12786-12787 12805-12807 12812-12814 12851 12863 12906 12932-12934 12936 12952-12953 12981 12983 12998 13033 13035-13036 13038-13040 13042-13043 13072-13073 13075 13081 13084-13085 13113-13115 13127-13128 13153 13155 13160 13162 13164-13165 13176 13181 13183 13189 13191 13239 13256 13259 13269 13271-13272 13274-13275 13277 13279 13300-13301 13304 13306 13308 13316-13317 13319 13346-13347 13349 13356 13358 13361 13363-13366 13369 13371 13377-13378 13444 13448 13450-13454 13457-13459 13484 13486 13489-13490 13500-13501 13503 13548-13549 13556-13557 13560-13561 13574-13575 13586-13587 13612-13614 13632-13633 13664-13666 13668-13669 13671 13678 13680-13682 13685 13687 13691 13700 13702-13703 13708 13710-13711 13720-13721 13723 13728 13731 13737 13739-13740 13743 13764 13766 13772 13774-13775 13777 13779 13784-13785 13787 13809 13830 13832-13833 13835 13847 13853-13855 13890-13891 13894-13895 13924-13926 13984-13985 13989 13991-13992 13994-13995 13997-13998 14035 14037-14039 14041-14043 14068-14069 14072-14074 14081 14085-14087 14117 14128-14129 14131 14137 14139 14148-14150 14162 14165 14167 14170-14171 14176-14178 14181-14182 14184 14186-14187 14189-14191 14201-14205 14216 14218 14221 14223 14245 14276-14278 14284 14286 14288 14367 14370-14371 14375 14385-14387 14400-14401 14403-14405 14407 14410-14411 14429-14431 14436 14438 14444 14504-14506 14536 14538 14541-14543 14549 14551 14556 14558-14561 14570 14592 14594-14595 14617 14619 14624 14627 14630-14631 14641-14643 14648 14650 14653 14660 14665-14668 14670-14671 14678-14679 14697 14708-14710 14716 14719 14736 14738-14739 14784 14786-14787 14790-14791 14841-14846 14850-14851 14913-14915 14992 14994-14995 15011-15013 15015 15017-15019 15021-15023 15048 15050-15053 15055 15101-15103 15160-15162 15164 15172-15174 15180 15182 15184 15190-15191 15195-15198 15200-15202 15217 15220-15221 15227 15232-15233 15236 15242 15246 15260-15262 15268-15269 15271 15284 15286 15292-15294 15298 15300 15302-15305 15310 15315 15369-15372 15374 15392-15393 15404 15406-15407 15424-15425 15433 15444 15446 15452 15454 15461 15472-15473 15500-15502 15773-15775 15796-15797 15878-15879 15884-15886 15904-15905 17565 17589 17602-17603 17608 17611-17612 17614 17635 17638-17639 17649-17650 17652 17657-17658 17660 17663-17665 17671 17695 17715 17724-17725 17727 17738-17739 17741-17742 17744 17746-17747 17752 17754 17764 17766 17768-17769 17771-17772 17774-17776 17778-17779 17782-17783 17811-17814 17817 17822 17829 17841-17844 17847 17850-17852 17855 17863 17865 17867 17872-17873 17875 17884 17888 17890 17892 17900-17902 17907 17909 17914-17915 17989 18000 18003-18004 18007 18009 18011 18013 18015 18022 18029-18032 18038-18040 18045 18047 18086-18087 18090 18093 18095 18097-18099 18105 18107-18108 18110 18113 18116 18118 18121-18122 18124 18126-18127 18136 18138-18141 18143 18145 18147-18150 18152 18154 18156 18160-18161 18164-18166 18169 18172 18175 18178 18183 18189-18191 18193-18194 18196 18200-18201 18203 18208-18209 18211 18220-18221 18223 18226-18228 18230-18231 18243-18244 18246-18247 18260 18262 18268-18269 18271 18273-18275 18277-18280 18282-18283 18289-18291 18293-18296 18298 18303 18306 18313-18314 18317-18321 18323 18325-18326 18329-18331 18333 18335 18344-18346 18348 18350-18351 18357 18359-18362 18371 18373-18378 18381-18384 18386-18387 18393 18398-18402 18413-18415 18421-18422 18641 18643 18653 18663 18669 18671 18678 18765-18767 18778 18789-18790 18792-18793 18795 18806-18808 18810-18812 18814-18815 18824 18826-18827 18830-18831 18835-18837 18841 18843-18844 18846-18847 18849-18852 18854-18855 18865-18867 18872 18874 18876 18878-18879 18881-18886 18888-18889 18891-18892 18894 18900-18901 18903-18905 18907 18912-18914 18916 18918-18919 18924-18926 18929 18931-18933 18935 18939-18941 18945-18947 18950 18967 18972 18975 18992 18994-18995 18997 18999 19005 19008 19010 19012-19013 19015 19020 19022-19024 19026-19028 19030-19031 19040 19042-19045 19049 19053 19057-19062 19073-19075 19084 19086-19089 19093-19096 19099 19101-19105 19108 19112 19114-19116 19118-19119 19122 19128 19132-19133 19136 19139 19164-19166 19196 19198-19199 19217-19219 19232-19233 19239 19249-19252 19254-19255 19260 19262-19264 19287 19293-19294 19296-19297 19302 19313-19315 19325-19326 19336-19337 19339-19342 19344-19345 19347-19348 19352 19357 19360 19362-19363 19365-19367 19378 19396 19398-19402 19410-19411 19424 19426-19427 19453-19455 19457 19463-19464 19467 19474 19476 19478 19480-19481 19485-19487 19492 19495 19498-19499 19508-19509 19513 19515-19517 19522-19523 19530 19532-19534 19540 19560 19562-19564 19567 19571 19576-19578 19583-19584 19586-19588 19591-19592 19600-19602 19604 19606-19607 19609-19611 19616 19623 19625 19628-19630 19633-19634 19650-19654 19656-19657 19666-19667 19672-19673 19681 19692 19697-19699 19705 19707 19725 19733 19743 19775 19777-19778 19780 19782-19785 19787 19798-19801 19804-19805 19808-19810 19816-19817 19819 19824 19826 19832 19834-19835 19840 19842 19850-19852 19854-19855 19864 19869-19871 19880 19882-19884 19886-19887 19890-19891 19904-19905 19907 19909-19911 19917-19922 19926-19928 19930-19931 19969-19971 19977-19978 19986 19996 19998 20012-20013 20024-20025 20027 20046 20052 20072-20074 20080 20082 20088-20090 20102-20103 20113 20115 20123 20145-20147 20152 20154-20155 20196-20198 20200-20202 20205-20207 20224 20228-20230 20237 20239-20242 20261-20263 20268-20269 20271 20284 20286-20287 20304-20305 20307 20312 20388-20390 20392-20394 20396-20398 20400 20409-20411 21353 21355 21373-21375 21423 21431 21437 21439 21441 21443 21449 21473-21474 21589 21591 21596-21597 21599 21619 21710 21713 21715 21722-21723 21725-21727 21730-21731 21737-21739 22022-22023 22034-22037 22039 22051 22089-22091 22132-22133 22180 22182-22183 22217-22219 22344-22345 22347 22360-22362 22401-22403 22685-22686 22708 22711 22717 22722 22727 22732 22734-22735 22739-22740 22742-22743 22753-22755 22760-22761 22776-22777 22779 22788-22789 22791 22797 22799 22804 22806-22807 22833 22835 22844-22845 22852-22854 22864-22865 22867 22888-22889 22891 22913-22915 22918-22919 22928-22929 22938-22939 22942 22949 22951 22961-22963 22989 23008 23010 23022 23025 23037 23069 23071 23077-23079 23086-23088 23091 23100-23101 23103 23105-23107 23112-23114 23116-23118 23132-23133 23135-23137 23141-23143 23147 23173-23175 23181-23182 23192-23194 23196-23197 23199 23204 23207-23210 23220-23221 23223 23268 23270-23274 23313-23314 23321-23323 23364 23366-23367 23388 23390-23391 23428-23430 24065 24067 25435 25438 25445 25458-25460 25462-25463 25465-25466 25468 25470 25535 25539 25541 25543 25545 25548-25549 25554-25557 25560-25562 25565-25567 25570 25575-25576 25578 25581-25583 25586 25589-25590 25592 25594-25597 25599 25703 25709 25711-25713 25718 25720 25722 25725-25726 25757-25758 25772-25774 25778-25779 25784 25786 25788 25791 25795 25799-25800 25802-25803 25808-25809 25813-25814 25818-25819 25824-25825 25832-25833 25841-25843 25854-25855 25860 25862 25864 25866-25867 25873 25879-25882 25892 25895 25899-25901 25904-25906 25908 25910-25911 25913-25915 25924 25926-25927 25929 25932-25933 25941-25946 25948-25950 25954-25955 25958 25961-25963 25971 25976-25977 25980-25981 25983 25991 26000 26002 26004 26006-26009 26011 26013-26015 26020-26021 26023-26025 26027 26029-26030 26036-26038 26045-26047 26060-26062 26065-26067 26077 26080-26081 26083-26084 26087 26097-26098 26100-26101 26108 26116-26117 26119 26121-26122 26124 26128-26129 26131 26133-26136 26141 26143 26152 26154-26155 26158 26170-26171 26178-26179 26184-26186 26192-26194 26196-26197 26200-26202 26209-26210 26213 26215 26221 26225 26238-26239 26244 26247 26249 26252 26254 26256 26259 26262 26265-26267 26270-26271 26277-26281 26284 26286-26287 26292-26294 26296-26297 26308 26310 26313-26314 26316 26319 26322 26325-26326 26330 26333 26338 26344 26347 26352 26357 26359 26364 26368 26370 26376 26378-26379 26381-26383 26385 26388 26391 26396-26397 26404-26406 26409-26410 26420-26421 26423-26425 26432 26435-26436 26438-26439 26441-26443 26447 26457-26461 26463 26465 26467 26470 26472 26474-26478 26480 26482 26484-26485 26487 26492 26494 26497 26499-26500 26503 26505 26509 26514 26516-26518 26520-26521 26523 26530-26531 26533-26534 26536 26538-26540 26542 26545-26547 26553 26557-26562 26564-26565 26567 26569-26570 26572-26573 26575 26577-26580 26582-26585 26587 26595-26596 26598-26599 26608-26609 26611-26612 26616-26617 26619 26621-26623 26711 26717 26738-26740 26742 26745-26746 26748-26749 26751 26814-26815 26829 26831 26833-26834 26838-26839 26841 26843 26845 26847 26853 26855 26858 26860-26862 26865-26866 26868 26870-26874 26880-26881 26884 26887 26889 26892-26894 26902-26904 26907-26909 26911 26913 26915-26916 26919-26921 26923 26925 26927 26929-26930 26932-26933 26935 26937-26941 26943-26944 26952-26954 26956 26960 26962-26963 26965-26967 26969 26971-26974 26980-26981 26983 26992 26994 26996-26998 27000-27002 27008 27011 27013-27015 27026-27027 27034-27036 27039 27043 27045-27047 27051 27057 27059-27060 27070 27080-27081 27083-27085 27087-27090 27092-27093 27095 27109 27112 27115 27126-27127 27130-27132 27134 27137 27142 27145-27149 27161-27162 27164-27165 27167 27169 27189-27191 27205-27207 27209-27213 27220-27222 27228 27237 27239 27250-27252 27254-27255 27266-27267 27284-27285 27287 27293-27294 27329-27331 27349-27351 27353-27355 27360 27365 27367 27373-27375 27428-27429 27431 27436 27438-27439 27452 27454-27455 27461 27466-27467 27471-27474 27488-27489 27500 27502-27504 27506-27507 27520 27522 27528-27530 27532-27533 27535 27538-27539 27541-27542 27544-27546 27548-27549 27556-27557 27559 27561-27564 27566-27567 27573-27574 27577-27582 27588-27590 27592-27594 27596 27601 27603 27606 27613-27615 27621 27623 27627 27629 27631 27638 27640 27645 27648-27650 27652-27654 27662-27663 27666 27668-27669 27671 27674 27676 27692-27694 27698-27699 27706 27712-27713 27715 27718-27721 27723 27726 27730-27731 27733-27735 27738-27740 27744-27745 27748 27753 27755-27756 27758-27759 27763 27765-27766 27768 27771 27773 27780 27782-27783 27789 27791-27792 27795 27804 27806 27810-27811 27813-27815 27818 27820 27822 27825 27828-27829 27831-27832 27834 27836-27838 27843 27845-27847 27849-27854 27856-27857 27861-27863 27865-27867 27871-27873 27875-27876 27878-27879 27885 27889 27891 27894-27897 27901 27905-27906 27909-27910 27913-27914 27916-27917 27919-27920 27922-27923 27925 27931 27935 27937-27938 27940 27942 27944 27946-27948 27951-27953 27957 27959-27960 27966 27969-27972 27974 27976 27982-27984 27988-27989 27991-27992 27996-27998 28000 28003 28008 28010-28011 28013-28014 28016-28018 28021 28024-28025 28029-28031 28033 28035-28036 28043 28045 28047 28051 28053-28054 28056 28059 28061 28063 28068-28069 28072-28073 28075 28079 28082 28084-28085 28087-28088 28092 28097-28098 28107-28108 28110 28112 28117-28119 28123 28125-28127 28132-28133 28135 28138 28145 28148-28150 28152 28155 28159 28161-28162 28164 28166 28169-28170 28174-28175 28177 28179-28182 28185 28192 28194-28197 28199-28201 28207-28208 28210-28211 28215 28218 28222-28224 28226-28227 28232-28233 28235-28236 28238-28239 28241 28244 28250 28257-28259 28261 28263-28264 28266 28272 28277 28280-28281 28284 28287-28290 28293 28296-28298 28306-28307 28309-28311 28313 28315-28316 28318-28320 28324 28329 28334 28340 28344-28345 28348 28351-28353 28356-28358 28365 28369 28376 28378 28380 28386 28388 28390-28393 28395 28401-28405 28407-28408 28410 28412 28414 28425 28431 28433-28435 28441-28442 28445-28447 28453 28455 28462-28463 28465-28468 28470-28472 28476-28478 28481-28482 28492-28493 28495-28497 28502 28504 28512 28514-28518 28520 28523-28524 28526 28528-28529 28537-28539 28548-28549 28555 28561-28562 28565-28566 28569-28573 28577-28578 28580-28582 28584 28586-28587 28589 28591 28595 28599-28602 28604-28605 28612 28615-28617 28629-28630 28632 28635 28637 28639 28643 28645 28647-28650 28653 28660 28664-28666 29567 29650 29660 29662 29675 29678-29679 29681 29683 29685-29687 29689 29692-29693 29695 29925 29927 29933-29935 29940 29942-29943 29945-29950 30193-30195 30201 30203 30250 30314 30318 30338 30340 30342-30343 30348 30350 30369-30372 30374-30375 30384 30386-30387 30389-30391 30400-30401 30403 30405 30410 30418 30426 30432 30434-30435 30454-30455 30464 30467 30471-30472 30474 30496-30497 30500 30502 30508 30512 30549 30551 30557 30559 30573 30575 30578-30579 30581-30583 30632 30635 30684-30685 30843-30844 30846-30847 30898 30906-30908 30910-30911 30919 30925 30928-30929 30931 30940-30941 30943 30948-30949 30954-30955 30958-30960 30962 30965-30966 30968 30970 30975 30998-30999 31001-31003 31016 31018-31019 31024-31025 31027 31112-31113 31137-31139 31152 31154-31157 31159 31237 31239 31248-31249 31251 31257 31259 31281 31283 31289 31291 31317-31319 31324-31325 31327 31333-31335 31344 31346 31349-31351 31365-31367 31369 31371-31374 31376 31378-31379 31404 31406-31409 31411-31413 31415 31420 31422 31452-31453 31468-31469 31477 31479-31481 31483 31521 31525-31527 31548-31550 31584 31586-31589 31591 31604-31605 31607 31611 31624-31625 31636-31637 31639 31645 31647 31650-31651 31661 31663-31664 31666-31667 31680-31681 31683 31700-31702 31724-31726 31816 31818-31819 31821-31826 31828 31832 31834 31848-31849 31851 32032 32034-32035 32046 32098-32099 32108 32110 32119 32132 32134-32135 32145 32147 32183 32196 32198 32200-32201 32204 32219 32232 32234-32235 32241 32243 32250-32251 32324-32326 32380-32381 32388-32390 32392-32394 32416 32423-32424 32426-32427 32432-32433 32435 32452-32453 32468 32470-32471 32480-32482 32489-32491 32566-32567 32581 32583-32584 32589-32590 32609-32611 32624 32626 32628-32629 32632-32634 32676-32677 32679-32680 32682-32683 32696-32697 32699 32705-32706 32711-32712 32714 32719 32721-32723 32728 32730-32733 32741-32743 32745-32750 32754-32755 32757 32765-32767 36723 36728 36730-36732 36734 36778 36782 36794 36801-36804 36806-36809 36811 36816 36818 36820-36821 36823 36828 36831 36836 36845 36850-36853 36855-36856 36858 36862-36863 40859 40862 40881-40882 40903 40905 40914-40915 40933-40935 45019 45033-45035 45041 45043 45049-45051 48983 48991 48997-48999 49008-49009 49011 49020 49022 49092-49093 49095 49112 49117 49119 7.952274030004205e-20 1.7798557115773645e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/512/1710?format=ascii Optical Infrared default J/MNRAS/512/1710/table LAMOST DR7 spectroscopic and physical properties of 184318 identified primary RC D ? Distance estimate (dist) pc pos.distance;arith double nullable recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Name ID (specid) (1) meta.id;meta.main char File Spectrum file path (specpath) (2) meta.id char ObsID Observation ID unique for each spectrum (obsid) meta.id;obs long Spectrum Display the LAMOST DR7 spectrum meta.ref.url char RAJ2000 Observational right ascension (J2000) (ra) deg pos.eq.ra;meta.main indexed DEJ2000 Observational declination (J2000) (dec) deg pos.eq.dec;meta.main indexed Teff Effective temperature (teff) K phys.temperature.effective float e_Teff ? Mean uncertainty of Teff (teff_err) K stat.error;phys.temperature.effective double nullable logg Surface gravity (logg) log(cm.s**-2) phys.gravity float e_logg ? Mean uncertainty of logg (logg_err) log(cm.s**-2) stat.error double nullable [Fe/H] Iron to hydrogen abundance ratio (feh) log(Sun) phys.abund.Fe;arith.ratio float e_[Fe/H] ? Mean uncertainty of [Fe/H] (feh_err) log(Sun) stat.error;phys.abund.Fe double nullable RV Radial velocity (rv) km/s phys.veloc;pos.heliocentric float e_RV ? Mean uncertainty of RV (rv_err) km/s stat.error double nullable Jmag ? J band apparent magnitude (Jmag) mag phot.mag;em.IR.J float nullable e_Jmag ? Mean uncertainty of Jmag (e_Jmag) mag stat.error;phot.mag float nullable Hmag ? H band apparent magnitude (Hmag) mag phot.mag;em.IR.H float nullable e_Hmag ? Mean uncertainty of Hmag (e_Hmag) mag stat.error;phot.mag float nullable Ksmag ? Ks band apparent magnitude (Kmag) mag phot.mag;em.IR.K float nullable e_Ksmag ? Mean uncertainty of Ksmag (e_Kmag) mag stat.error;phot.mag float nullable KsMag Ks band absolute magnitude (mk) mag phys.magAbs;em.IR.K double e_KsMag Mean uncertainty of KsMag (mk_err) mag stat.error;phot.mag double M* Star mass estimate (mass) solMass phys.mass;arith double e_M* Mean uncertainty of M* (mass_err) solMass stat.error double Age [] Star age estimate (age) Gyr time.age;meta.modelled double e_Age [] Mean uncertainty of Age (age_err) Gyr stat.error;time.age double e_D ? Mean uncertainty of D (dist_err) pc stat.error double nullable