Stellar population parameters from LAMOST DR7 J/ApJS/258/9 ivo://CDS.VizieR/J/ApJS/258/9 doi:10.26093/cds/vizier.22580009 CDS Wang L.-L. Shen S.-Y. Luo A.-L. Yang G.-J. Gai N. Tang Y.-K.,Wang M.-X. Qin Li Han J.-S. Rong L.-X. 2022-09-30T22:25:17Z 2022-06-10T10:37:31Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr visible-astronomy spectroscopy surveys redshifted stellar-ages chemical-abundances We first derive the stellar population properties: age and metallicity for ~43000 low redshift galaxies in the DR7 of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey, which have no spectroscopic observations in the Sloan Digital Sky Survey (SDSS). We employ a fitting procedure based on the small-scale features of galaxy spectra so as to avoid possible biases from the uncertain flux calibration of the LAMOST spectroscopy. We show that our algorithm can successfully recover the average age and metallicity of the stellar populations of galaxies down to signal-to-noise ratio >=5 through testing on both mock galaxies and real galaxies comprising LAMOST and their SDSS counterparts. We provide a catalog of the age and metallicity for ~43000 LAMOST galaxies online. As a demonstration of the scientific application of this catalog, we present the Holmberg effect on both age and metallicity of a sample of galaxies in galaxy pairs. 2022ApJS..258....9W https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/258/9 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to V/146 : LAMOST DR1 catalogs (Luo+, 2015) V/156 : LAMOST DR7 catalogs (Luo+, 2019) V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020) J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994) J/A+AS/141/371 : Low-mass stars evolutionary tracks (Girardi+, 2000) J/AJ/127/1883 : Merging galaxies in SDSS EDR (Allam+, 2004) J/MNRAS/371/703 : MILES library of empirical sp. (Sanchez-Blazquez+, 2006) J/MNRAS/404/1639 : MILES models & new line index syst. (Vazdekis+, 2010) J/other/RAA/15.1414 : E+A galaxy candidates in LAMOST DR2 (Yang+, 2015) J/AJ/151/24 : LAMOST quasar survey: QSOs from the DR1 (Ai+, 2016) J/ApJS/222/16 : Herschel obs. of major-merger pairs of gal. (Cao+, 2016) J/other/RAA/16.C7 : LAMOST-SDSS galaxy pairs (Shen+, 2016) J/MNRAS/474/1873 : Classification of LAMOST DR4 galaxies (Wang+, 2018) J/ApJS/234/5 : LaCoSSPAr in the Southern Galactic Cap. I. (Yang+, 2018) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/258/9 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/258/9 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/258/9 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/258/9 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/258/9 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/258/9 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/258/9/table1 (Catalogue of the stellar population parameters for ~43000 galaxies in LAMOST DR7.) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/258/9/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/258/9/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/258/9/table1? 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9951 9953 9956 9973-9975 9978 9981 9983-9985 9987-9988 9991 9997 9999 10004-10006 10008-10009 10019 10021-10022 10036 10038 10041-10043 10046 10050-10051 10057 10060-10061 10064 10066-10067 10080 10087 10090 10106 10113-10116 10118-10119 10129 10131-10132 10136 10138 10143 10156-10158 10177-10179 10188-10190 10192 10208 10241-10242 10248 10250-10251 10255 10260-10261 10264-10266 10268 10270-10272 10277 10279 10285 10292-10293 10295 10300 10302-10304 10307 10312-10313 10315 10332 10334-10335 10344-10345 10347 10357-10359 10370-10371 10389-10391 10394 10404 10406 10409-10411 10413-10415 10417-10421 10444-10445 10453 10464-10465 10467 10477 10479 10489 10492 10504-10505 10507 10528 10530 10540 10543-10544 10546-10548 10550 10552-10554 10556 10560 10563 10566 10570 10574-10575 10580 10584-10585 10587-10588 10591-10592 10596-10597 10615 10621 10628-10630 10633-10634 10636-10638 10641 10646-10647 10650-10651 10653-10655 10660 10662-10666 10669-10671 10673 10675-10678 10680 10682 10687-10688 10690-10694 10696-10698 10701-10702 10704 10706 10718 10721 10724 10744 10746-10747 10749-10752 10755-10756 10758-10759 10768 10771-10772 10774 10777-10778 10788 10790-10791 10798-10799 10802 10804 10806 10808-10809 10813 10815 10821-10823 10828-10830 10834-10835 10838-10840 10842 10844-10846 10848-10849 10853 10855-10857 10859 10861-10866 10869 10872 10874-10875 10878-10879 10881-10882 10884-10885 10893-10895 10897-10899 10905-10910 10915 10928-10929 10931-10933 10945 10947 10952-10954 10964 10968-10970 10972 10974 10976-10977 10979 10981-10984 10991-10992 10998-10999 11002-11006 11009-11010 11012 11015 11021 11023-11024 11026 11032 11035 11037 11039 11056 11058 11061-11063 11065 11072 11079-11081 11083-11085 11096 11098-11101 11103 11108-11110 11112-11113 11115-11116 11118-11119 11125-11129 11131-11133 11135 11153 11155 11164 11167 11170 11172 11174-11175 11178-11179 11185-11186 11192-11194 11200-11201 11206-11209 11211-11212 11214 11220 11222 11230 11232-11233 11236 11270-11271 11273-11275 11282 11288 11290 11305 11312 11336 11356-11358 11376-11377 11405 11407-11408 11413-11417 11419-11420 11422-11423 11428-11429 11431 11433-11438 11448-11449 11451 11456 11468-11469 11777-11779 11784 11789 11792-11793 11808 11810 11904-11905 11907 11909-11910 11912-11913 11995 11998 12007 12016-12017 12019 12170-12171 12196 12198 12200 12291 12296-12297 12312-12313 12327 12332-12333 12335-12336 12338-12339 12342-12343 12352-12353 12355-12356 12358-12359 12361 12376-12377 12379-12381 12389 12433 12436-12438 12480 12501-12503 12505 12510-12511 12519 12537 12540 12544-12545 12552 12559 12569 12572-12573 12581 12583 12589 12591-12592 12594 12609 12611 12620-12621 12628 12632 12646 12665 12667 12672 12675 12678-12679 12681-12683 12690 12696 12698 12704-12706 12717 12726 12729 12733-12734 12745 12747-12748 12750-12751 12753 12755 12760 12764 12768-12769 12771 12777 12779-12781 12783-12784 12787 12792 12794 13131 13138 13157 13250 13305 13329 13331 13344 13346-13347 13353-13356 13358 13389 13391 13396-13398 13404 13409-13410 13416-13417 13419-13421 13424-13426 13432-13433 13532 13574-13575 13577 13579-13581 13583 13586-13587 13594 13601 13605 13637 13645 13648 13650-13651 13654 13659 13662 13677 13681 13685-13690 13692-13693 13695 13705 13709 13765-13766 13773 13775-13776 13781 13853 13855 13875 13877 13891 13894-13895 13897-13898 13900 13903 13972 14024 14452 14541 14575 14579 14583-14584 14586 14589-14591 14733 14735 14744 14750 14756 14758 14761-14765 14770-14771 14773 14780 14783 14794 14816 14819 14828 14830 14879 14901 14903 14911 14915 14917-14918 14920-14922 14924-14925 14927-14929 14931 14936-14937 14939 14945-14947 14957-14959 14997-14999 15011-15012 15014 15017-15020 15022 15040-15041 15044-15045 15047 15056 15058 15061 15063 15120 15122-15123 15125-15127 15129-15134 15140-15142 15160-15161 15172 15174 15182 15200 15236 15305 17637-17639 17652 17654-17655 17695 17724 17738 17745-17746 17748 17750-17751 17753-17754 17757-17759 17773-17775 17799 17805 17808 17810 17813 17815-17816 17819 17821-17823 17831-17832 17837 17839 17857-17859 17868 17870-17871 17916 17918-17919 17989 18004-18006 18009 18011 18027 18033-18035 18085-18087 18090 18097-18100 18102 18108-18110 18113-18115 18145 18153 18155 18178-18179 18182-18183 18260-18262 18280 18282 18285 18300-18301 18348-18350 18360-18362 18364-18366 18368 18370-18371 18374 18380 18382 18400-18402 18404 18406 18415 18421 18641-18643 18661-18663 18673-18675 18686 18766 18776 18778-18779 18781-18782 18788-18789 18791 18797-18799 18816 18818-18819 18830 18836-18837 18839-18841 18843 18853-18856 18859 18882-18886 18892 18894 18957 18965-18967 18973-18975 18987 18995 19001 19004-19006 19016-19017 19019 19028 19031 19034-19035 19040-19041 19050 19053-19055 19074 19076 19078-19079 19090 19094 19104-19105 19109 19111 19118-19119 19121-19123 19128-19130 19137 19139 19201-19203 19232-19233 19237-19239 19260-19262 19284 19286-19287 19305 19311 19324-19325 19352-19353 19355 19378 19384 19386 19389 19394-19395 19399 19406 19412-19413 19415-19417 19419 19442-19445 19447 19454 19457-19459 19521-19523 19540-19542 19544-19546 19564 19566 19568 19570 19652 19655 19672 19678-19682 19684 19688 19690-19691 19697-19699 19729 19743 19765 19767-19769 19773-19776 19778-19779 19816-19817 19819 19824 19826 19829 19834 19850 19857 19859 19869-19871 19884-19885 19887 19898 19903-19904 19906-19907 19926 19932 19934 19936-19937 19939 19989-19990 19992-19994 19996 19998-19999 20033 20035 20041-20043 20052-20054 20056-20058 20100 20102-20103 20113 20115 20123 20132-20134 20145 20147 20153 20156-20157 20159 20180 20182 20188-20190 20196-20198 20200-20202 20208-20209 20218 20222 20228 20231 20236 20249 20251 20273 20283 20285 20324-20326 20331-20333 20335-20337 20339-20340 20342-20343 20367 20378-20379 20390-20391 20397 20417 20419 20421 20423 20445-20448 20452 20455 20461 20468-20469 20471-20473 20475 20478-20479 21501 21630 21783 21827 21837 21844 21847-21849 21851 21854 21868 21870 21873 21877 21891 21909 21911 21917 21923 21956-21957 21959 21961 21963 21970 21974 21980 21982 21985 21987 22004 22006 22012-22014 22060 22096 22101 22103 22111 22173 22235 22240 22243 22246 22249 22252 22256 22261 22263 22271 22293 22295 22304 22335 22341 22352-22353 22356 22361 22363 22367 22375 22378 22381 22387 22390-22393 22397-22399 22408 22413 22415 22420-22421 22441 22453 22455 22469-22470 22472 22476 22480 22486-22487 22491-22492 22495 22501 22506 22513 22517 22521 22523 22738-22739 22748 22750-22751 22761 22763 22772-22774 22780 22782 22823 22827 22829-22831 22833-22835 22838 22840 22843 22850 22853 22857 22873 22909 22969 22971-22972 22987 22989-22990 22999 23002-23003 23020 23025 23033 23069 23071 23077 23079 23084-23085 23088-23089 23093-23095 23097-23099 23102 23105-23107 23113-23114 23124 23132 23134 23144-23145 23148-23150 23152-23153 23156 23159 23163-23164 23174 23178-23180 23184-23186 23189 23198 23210 23214-23216 23218-23219 23233-23235 23240 23246 23254-23255 23257-23260 23262-23263 23285-23286 23306 23312-23313 23324-23325 23327-23330 23333 23336 23347 23356 23366 23369 23393 23398 23424-23425 23427-23428 23432-23434 23449 23456 23458 23470-23471 23481-23483 23486-23487 23495 23501 23508 23512 23514 23517 23521 23526 23529-23531 23533 23535 23540 23542 23544 23547 23561 23590-23591 23634 23637 23645 23650 23697 23718 23721 23726 23740 23742-23744 23778 23785-23786 23789-23791 23798-23799 23806 23808 23813-23814 23820 23830-23831 23853 23867-23868 23881-23882 23888 23894 23896 23898-23901 23908-23910 23913 23919 23925-23927 23929-23934 23946 23954 23969-23970 23983 23986 23994 23997-23998 24005-24006 24014-24017 24019-24020 24022-24025 24027-24028 24031-24032 24034-24035 24041-24042 24045-24046 24054 24056 24063 24068 24097 24099-24100 24104 24116 24120 24128-24129 24132 24136 24149 24180 24191 24194 24197 24207 24226-24227 24229 24232 24234-24235 24242 24249 24255 24257 24265 24307 24344 24359 24377 24379-24380 24382 24384 24387-24388 24390 24412-24413 24415 24455 24458-24459 24465 24502 24533 24545 24551 24559 25438 25459-25462 25469-25470 25531 25534-25535 25555 25561 25563 25577-25579 25586-25587 25589 25594-25595 25727 25779 25813 25815 25821 25830 25833 25835 25837-25838 25842 25852-25854 25893 25901 25903 25905-25908 25915 25918 25924-25925 25929 25932 25935-25937 25939 25942-25946 25949-25951 25961 25968 25971 25977 25980-25981 25983-25986 25988 25995 26007 26009-26010 26012 26014 26017 26019 26022 26024 26026 26028-26029 26032 26034-26035 26049 26051 26055-26057 26062 26065 26072 26077 26079 26089-26090 26093 26095 26097 26103 26111 26121 26126-26127 26138-26139 26142 26146 26154 26157-26159 26164 26166-26167 26172-26173 26175 26179 26183 26186 26192-26193 26195-26196 26198-26199 26203 26205 26207 26209 26212 26214-26215 26217 26221-26223 26231 26234-26238 26240 26242-26243 26245-26247 26249-26251 26254 26257-26258 26260 26262 26264 26266-26268 26270-26271 26273-26275 26278 26285 26287 26292-26294 26296-26297 26299-26300 26302-26303 26305 26307-26310 26313 26315 26320 26322-26324 26326-26327 26336-26338 26341 26343-26346 26349 26351 26354 26361 26365 26373 26377 26379 26382 26388 26394 26397-26399 26409-26412 26414-26415 26417 26422-26424 26427 26433-26436 26438-26441 26443 26448 26450-26452 26454 26464-26465 26467 26476-26477 26479 26487-26488 26497-26499 26504-26505 26508-26509 26511 26519-26521 26523 26531 26536-26537 26540-26542 26548 26551 26553-26555 26557-26559 26568-26569 26571 26573-26577 26582-26584 26586-26587 26592 26594-26597 26599 26604-26605 26607-26608 26610-26611 26814-26815 26835 26838 26843 26853 26855-26856 26858-26859 26868-26870 26876-26877 26879 26895 26913 26915 26929-26931 26952-26953 26961 26965 26968 26972-26973 26976 26978 26982-26983 26986-26987 26989-26991 26994 26997-26999 27001-27002 27004 27006-27007 27009-27011 27044-27045 27047 27050 27052-27053 27055 27060-27062 27068-27070 27072 27074 27077-27079 27084-27085 27088-27090 27098-27099 27104-27106 27108 27110 27112-27113 27115 27120 27122-27123 27128-27129 27131 27143 27160-27161 27164-27165 27167 27171 27173-27175 27221-27223 27229-27231 27244-27245 27247 27253 27255 27257-27258 27260-27261 27266-27267 27273-27274 27276-27277 27279 27284-27285 27287-27288 27290-27292 27298 27301 27304 27310-27311 27313 27315 27322 27324-27325 27327 27329 27337 27340 27342-27343 27348-27349 27351-27353 27355 27365 27368 27370-27371 27373 27376-27378 27380-27382 27386-27387 27392-27393 27413-27417 27419-27420 27424 27426 27432 27434 27436 27439-27441 27451 27454-27455 27461 27469-27472 27474-27476 27478-27479 27494-27495 27497 27499-27501 27503-27505 27507 27509 27512-27513 27515-27516 27523 27525-27527 27532-27533 27535 27537-27540 27542-27545 27547 27550-27553 27558 27563 27565-27569 27571-27572 27575 27582 27586 27589-27591 27594-27597 27599 27604 27613-27617 27619 27621-27622 27625-27627 27630 27632-27633 27636 27638-27639 27643 27646 27652 27654-27657 27659 27666-27667 27672 27677 27684-27686 27690 27692-27693 27696 27704-27705 27710-27711 27716 27719 27724 27726 27747 27752-27753 27755 27760-27761 27763-27765 27767-27768 27772-27773 27775 27777 27780-27782 27784 27786 27790 27792-27794 27797 27799 27804-27805 27808 27810 27820-27821 27823 27829 27838-27839 27842 27844 27851 27853-27856 27858-27859 27862-27863 27865 27868 27871 27878 27892 27897 27901 27904 27906-27908 27910-27914 27917 27919-27920 27923 27928-27929 27931 27934 27936-27938 27940-27941 27943-27946 27953 27955 27958-27960 27962 27964-27966 27968 27972 27976-27978 27980 27982-27983 27992-27993 28004-28005 28007-28010 28012 28014-28015 28017-28019 28021 28028 28036-28038 28044 28046-28047 28052 28054-28055 28060 28062-28063 28068-28070 28073-28075 28084-28085 28088-28089 28100 28107 28109 28113 28126-28127 28130 28133 28135 28141-28143 28146-28149 28151 28156 28162-28163 28165 28168-28170 28174-28175 28177 28200 28202-28206 28210-28211 28213 28216 28218 28221 28223 28229 28232-28234 28236 28238-28239 28241 28244 28256-28257 28259 28263-28265 28267 28292-28293 28305-28307 28325-28328 28331-28333 28345 28347 28349-28351 28353-28355 28360 28362 28365 28368-28369 28371 28376-28377 28380 28383 28393-28394 28397 28399-28400 28402 28404-28406 28409-28410 28421-28423 28425 28427-28428 28430-28432 28435-28437 28439-28440 28445-28446 28449-28450 28452-28453 28455 28461-28464 28466 28468-28469 28471 28474 28479-28482 28492-28494 28501 28503-28505 28509-28514 28528 28530-28531 28534-28535 28538 28544-28545 28547 28552-28554 28557-28559 28567 28572 28574-28575 28580-28582 28584-28585 28589-28591 28600-28602 28609-28610 28612-28614 28620-28622 28632-28633 28635-28638 28647 28650-28651 28654 28656 28658-28660 30602 30911 30919 30926-30927 30930-30931 30938 30951 30954-30956 30958-30959 30964 30966 30968-30970 31031 31037-31039 31073-31075 31080-31081 31083-31084 31087 31090 31097-31099 31121 31124 31127 31133 31158 31164 31166-31168 31170 31184-31185 31210 31223 31229 31231 31249 31252 31254-31255 31259-31261 31285 31298-31299 31312 31315 31318 31321-31322 31324 31328 31333 31336 31338 31342 31344 31353-31356 31358 31370 31375 31384 31386 31388 31396 31398-31399 31402-31403 31408 31415-31416 31419 31422-31423 31425 31428-31429 31434 31437 31440 31445-31447 31453 31460-31462 31466 31477-31481 31483 31505 31513-31515 31517-31518 31526-31528 31530 31532-31534 31536 31538-31540 31542 31552 31554 31586-31587 31590 31592-31593 31595 31611 31616-31618 31620 31624 31626 31631 31634-31635 31642 31651-31654 31664 31668 31670 31679 31685 31689 31708-31710 31718 31739 31741 31803 31882 31886 31888 31892-31893 31895-31896 31905-31908 31912-31913 31916 31936 31938 31965 32188-32190 32272 32279 32290 32296 32298-32300 32302 32304 32307 32311 32327 32331 32333 32335 32344 32347 32349 32353 32368 32371-32372 32374 32377 32379 32388 32390 32396 32403 32450-32451 32453-32454 32457 32460-32462 32465-32467 32470 32476 32492-32493 32500 32502 32508 32510-32511 32517-32519 32525 32527-32529 32531-32532 32534 32537 32547-32549 32552-32553 32556 32558-32559 32621 32631 32637 32722 32761 36830-36831 36837 36855 36860 36862-36863 40890 40916 40918 40927 40939-40940 40942 40945 40949-40951 45023 45033 45035 45043-45045 48999 49005 49010 49109 49111 49117 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/258/9?format=ascii Optical default J/ApJS/258/9/table1 Catalogue of the stellar population parameters for ~43000 galaxies in LAMOST DR7. recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int obsid [102096/746812078] LAMOST DR7 spectral observation identifier meta.id;meta.main long RAJ2000 Right Ascension, decimal degrees (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 [-9/78] Declination, decimal degrees (J2000) deg pos.eq.dec;meta.main indexed zspec [0/0.4] spectroscopic redshift src.redshift double SNr [5/224] Signal-to-noise ratio in the r-band meta.note float rmag [9.8/31.9]? Petrosian magnitude in r band (1) mag phot.mag;em.opt.R double nullable logAge [7.8/10.2] log of mean stellar age log(yr) time.age;stat.mean float [M/H] [-1.71/0.22] lof of mean stellar metallicity, Z log(Sun) phys.abund.Z;stat.mean float