Gaia RVS stellar labels using The Cannon J/MNRAS/538/605 ivo://CDS.VizieR/J/MNRAS/538/605 doi:10.26093/cds/vizier.75380605 CDS Das P.B. Zucker D.B. De Silva G.M. Borsato N.W. Mura-Guzman A.,Buder S. Ness M. Nordlander T. Casey A.R. Martell S.L.,Bland-Hawthorn J. de Grijs R. Freeman K.C. Kos J. Stello D. Lewis G.F.,Hayden M.R. Sharma S. 2025-05-22T20:16:18Z 2025-03-11T09:44:04Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr surveys milky-way-galaxy spectroscopy chemical-abundances Analysing stellar parameters and abundances from nearly one million Gaia DR3 Radial Velocity Spectrometer (RVS) spectra poses challenges due to the limited spectral coverage (restricted to the infrared CaII triplet) and variable signal-to-noise ratios of the data. To address this, we use The Cannon, a data-driven method, to transfer stellar parameters and abundances from the GALAH Data Release 4 (DR4; R~28000) catalogue to the lower resolution Gaia DR3 RVS spectra (R~11500). Our model, trained on 14484 common targets, predicts parameters such as Teff, logg, and [Fe/H], along with several other elements across approximately 800000 Gaia RVS spectra. We utilise stars from open and globular clusters present in the Gaia RVS catalogue to validate our predicted mean [Fe/H] with high precision (~0.02-0.10dex). Additionally, we recover the bimodal distribution of [Ti/Fe] versus [Fe/H], reflecting the high and low alpha-components of Milky Way disk stars, demonstrating The Cannon's capability for accurate stellar abundance determination from medium-resolution Gaia RVS spectra. The methodologies and resultant catalogue presented in this work highlight the remarkable potential of the RVS dataset, which by the end of the Gaia mission will comprise spectra of over 200 million stars. 2025MNRAS.538..605D https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/538/605 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/538/605 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/538/605 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/538/605 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/538/605 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/538/605 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/538/605 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/538/605/rvs_gal (The Cannon predictions for stellar labels) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/538/605/rvs_gal? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/538/605/rvs_gal? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/538/605/rvs_gal? 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11850-11851 11853 11855-11858 11861-11863 11868-11870 11872 11875 11888-11889 11896-11897 11905-11907 11909-11911 11913 11915-11917 11919 11921-11923 11925 11927-11930 11937-11941 11943-11946 11952 11954-11956 11958 11973-11975 12012-12013 12015 12021-12022 12036-12038 12044 12046-12047 12052 12054-12055 12057-12061 12065-12066 12068-12069 12071 12076 12078-12079 12090-12091 12117-12119 12162-12163 12165-12169 12177 12179-12180 12182-12184 12186-12187 12196-12198 12200 12202-12203 12205-12210 12220-12221 12223 12225-12227 12241-12243 12256-12258 12312 12314-12315 12549-12551 12640-12641 12643 12681-12683 13468-13470 13612 13614-13615 13632-13633 13635 13704 13706-13707 15068-15069 15071 16037-16038 16060-16061 16078 16088-16089 16096 16098 16112 16115 16119 16121-16123 16125-16127 16129 16135-16136 16140 16145 16147 16152-16153 16156 16164 16168 16171 16187 16191 16194-16197 16201 16203-16204 16207-16208 16211-16213 16215-16216 16218-16219 16229-16230 16233 16237 16241 16243 16255 16260 16262 16274 16282 16299 16307 16313 16317 16319-16320 16326 16335 16341 16343 16349 16356 16359 16383 16412 16414-16415 16464 16466-16470 16520 16522-16525 16527 16760-16761 16763 16836 16838-16839 17156-17158 17196-17197 17199 17473-17475 17493-17495 17636 17638-17639 17853-17855 17884-17885 17887 17896 17898-17899 17912-17913 17915 18060-18061 18063 18104-18105 18108-18110 18120-18121 18123 18132-18134 18141-18143 18152 18154-18155 18159 18188-18190 18193-18196 18204 18207-18208 18211-18212 18214-18215 18232-18233 18235 18241-18242 18249-18251 18304 18306-18307 18373-18375 18813-18815 18893-18895 18897 18901-18902 18904 18906 18912-18914 18917 18922-18923 18925-18927 18932-18933 18935-18936 18938-18939 18941-18943 19140 19142-19143 19460 19462-19463 19500-19502 19520-19521 19523 19540-19542 19548-19549 19551 19568 19570-19571 19624-19625 19627 19908 19911-19913 19917-19919 19924 19926-19927 19940 19943-19945 19947-19949 19951 19969-19970 19976-19977 19979 20020-20021 20023 20028-20029 20031 20232-20234 20256-20257 20259 20264 20266-20267 20280 20283-20286 20300-20302 20304-20306 20308-20310 20312 20314-20315 20324-20326 20337-20339 20429-20431 20452-20453 20455 20476-20478 21384 21386-21387 21392-21393 21395 21964 21966 22160-22161 22163 22204-22205 22207 22360 22362-22363 22476 22478-22479 23136-23138 23172 23174-23175 23228 23230-23231 23236-23237 23239 23244 23246-23247 23249 23251 23256 23258-23259 23272-23274 23276-23278 23281-23283 23293-23295 23330-23331 23336 23338 23361-23363 23424 23427-23428 23430-23431 23444 23446 23476 23478-23479 23489-23491 24076-24077 24079 25964-25965 25967-25968 25970-25971 25977 25979 26004-26006 26024 26026 26048 26050-26051 26053-26054 26057-26060 26062-26063 26065-26070 26076 26078 26088 26090-26091 26093-26094 26105-26107 26188 26190-26193 26195-26198 26200-26201 26203 26208 26210-26211 26213 26216 26218-26219 26224-26226 26232-26233 26284 26286-26287 26293-26294 26300 26302-26304 26306-26307 26312 26324-26326 26336 26338 26341-26342 26344 26346-26347 26349 26351-26352 26354-26355 26357-26359 26373-26375 26380-26381 26383 26393-26395 26400-26402 26404 26407-26408 26411 26413 26415 26424 26426 26428 26430 26432-26433 26435 26437-26438 26440 26442-26444 26446-26448 26451 26456-26457 26459 26468 26471-26474 26481 26483 26485-26486 26488-26489 26491-26492 26494 26496 26498 26500 26504 26506-26508 26510 26513-26514 26522-26523 26532-26534 26545 26548-26549 26551 26553-26557 26559 26576-26578 26584 26586-26587 26589 26591 26604-26606 26608 26610-26612 26615-26617 26619 26996-26997 26999 27100 27102-27103 27108-27110 27112 27114 27116-27117 27119 27388 27390-27391 27453 27460-27461 27463 27468 27474-27477 27479-27481 27483 27488-27490 27493-27494 27496-27497 27499-27502 27505-27509 27511 27513 27515 27532 27534 27544 27546 27553-27555 27564 27566-27569 27571-27572 27574-27575 27577-27579 27585-27587 27592 27594 27596 27605-27608 27612-27613 27616 27618-27619 27638-27639 27672-27673 27675 27688-27690 27700-27701 27703 27708 27710 27716 27719-27720 27722-27723 27726-27727 27737 27740 27742 27744-27745 27747 27752-27754 27758-27760 27762-27763 27788 27790-27791 27807 27813-27815 27824-27826 27840 27842-27843 27852 27854-27855 27861-27865 27867 27872 27874-27875 27885 27887 27912-27913 27915 27920-27922 27925 27928-27930 27932-27933 27935 27948-27949 27951-27954 27962-27964 27967 27976 27978-27979 27988 27991-27993 27995-27996 27998-28001 28004-28006 28008-28010 28013 28015 28017 28020 28022-28025 28027 28032-28034 28038-28040 28042-28043 28045-28046 28058-28060 28082-28083 28085 28088-28089 28092-28093 28095 28097 28100-28102 28110 28113 28115 28128 28130-28131 28134-28138 28154 28156-28158 28161-28162 28164 28166 28168-28170 28172 28175-28176 28178-28181 28185 28187 28189 28191-28192 28201-28205 28207-28209 28211 28220-28221 28224-28225 28228-28230 28233-28234 28240-28241 28248 28251-28253 28260 28264 28266 28269-28271 28273-28277 28296-28297 28299-28300 28302 28310 28314 28324-28325 28327-28329 28336-28338 28344 28347 28350-28351 28372 28374 28379-28381 28388 28391-28393 28395-28397 28401-28402 28405-28406 28408 28410 28412 28420 28422-28423 28433-28434 28440 28444 28449-28452 28456 28460 28462-28463 28465-28468 28471 28477-28479 28492-28493 28495-28497 28499 28502 28507 28509 28511 28513-28514 28516 28525-28526 28529-28531 28545-28547 28552-28554 28556-28557 28559 28564-28565 28569-28570 28572 28574-28576 28578 28583-28584 28586 28588 28592-28593 28595-28596 28598-28601 28603 28605 28607 28610-28611 28613-28614 28620-28622 28625-28627 28633 28635 28648-28649 28651-28652 28654-28655 28660-28661 28664 28666 28668-28669 29232-29234 29244-29246 29520 29522-29523 29588 29590-29591 29657-29659 30356-30358 30360 30362-30363 30409-30411 30416 30418-30419 31156-31158 31340-31342 31352-31354 31356 31358-31359 31420-31422 31428 31430-31431 31437-31439 31448-31450 31452-31453 31455 31596 31598-31599 31604-31606 31620-31622 31628-31630 31645-31647 31657-31658 31661-31663 31669-31671 31673-31675 31680 31683 31689 31691 31696-31698 31724-31726 31736-31737 31739-31742 31896-31897 31899 32037 32041-32044 32046-32047 32049-32050 32052-32054 32057-32058 32060 32062-32063 32092 32094 32120-32121 32123 32128-32129 32131 32140 32142 32145 32147 32153 32155-32157 32165-32166 32180-32181 32183 32186 32190 32205-32206 32208-32209 32211-32213 32217-32219 32226 32228 32230 32237 32280-32281 32289 32292 32294-32295 32303-32304 32308 32313-32314 32316 32320 32330-32331 32376 32378-32379 32400-32402 32405 32407 32410 32424 32432 32434-32435 32449-32451 32465-32466 32468 32470 32472 32478-32479 32497 32499 32505 32507 32514 32519 32523 32528 32533-32534 32536 32547-32548 32550-32551 32553 32557-32558 32560 32564 32566 32572 32577 32579-32580 32582 32588 32594 32599-32602 32604 32606-32607 32688-32689 32691 32708-32710 32717-32719 34592-34594 35572-35574 35724-35725 35727 35737-35739 35744-35745 35747 35845-35847 35868-35870 35880-35881 35883 36116-36117 36119 36140-36141 39284-39285 39287 41093-41095 41217-41222 41224 41226-41227 41372-41373 41375 41416 41418-41419 41688-41689 41691 41693-41697 41699 41701-41703 41828 41830 41843 41850-41851 41867 41869 41889-41891 41900 41902 41913 41918-41919 41923 41929 41945 41951 41959-41960 41963 42044-42045 42091 42093-42094 42096-42098 42101 42109 42111-42113 42115 42126-42127 42132 42134-42135 42180-42182 42189 42191 42194 42198 42203 42205-42207 42217-42219 42224 42226-42229 42264-42266 42271 42274 42280 42282 42294-42295 42299-42300 42302-42303 42308 42314-42315 42326-42327 42336 42338-42339 42344-42346 42348 42353-42355 42360-42362 42364-42365 42373 42376 42378 42382 42385-42388 42390-42393 42395-42396 42398-42399 42401 42403-42405 42407 42409 42424-42426 42432 42435 42439-42440 42445 42456 42470-42471 42473 42476-42478 42486 42492 42494-42495 42501 42503 42509-42511 42524-42525 42560 42562-42565 42569-42571 42580 42608 42614 42617-42620 42622 42633-42635 42640 42642-42643 42645-42647 42672 42674-42675 42688 42690-42691 42694-42695 42744-42746 42797 42799 42812 42814-42815 42851-42853 42865-42867 42900 42903 42912-42913 42915 42936-42937 42939 42948-42950 42960-42961 42968-42969 42971-42972 42974-42975 42993-42995 43004-43006 43014-43015 43017 43019-43020 43022-43023 43032 43034 43039 43041-43045 43048 43053-43056 43064 43067 43079 43082-43083 43136 43145 43147 43268 43270-43271 43389-43390 43456-43458 44053 44055-44056 44058 44062-44063 44096-44098 44100-44101 44112-44113 44115 44117-44119 44128-44130 44152 44154-44155 45061 45063 45065-45067 45601-45603 45608 45610 45696-45698 46120-46121 46123 46300 46302-46303 46530-46531 46548 46550-46551 46578-46579 46581-46583 46777-46779 46860 46862-46863 46936-46937 46939 46961-46963 46968-46970 46976-46978 47025-47027 47293-47295 47316 47318-47319 47520-47522 47528 47530-47531 47688 47690-47691 47784-47786 47788-47789 47844 47846-47847 47862-47864 47866-47867 47896 47898-47899 47924 47926-47927 47981-47983 48000 48002-48003 48005-48007 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/538/605?format=ascii default J/MNRAS/538/605/rvs_gal The Cannon predictions for stellar labels recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int GaiaDR3 Gaia DR3 source_id meta.id;meta.main GaiaRVSSNR Signal-to-Noise of RVS spectra stat.snr double flagCannon [0/1] Cannon flag (1) meta.code.error char Teff Effective temperature K phys.temperature.effective double e_Teff rms uncertainty on Teff K stat.error;phys.temperature.effective double logg Surface gravity log(cm.s**-2) phys.gravity float e_logg rms uncertainty on logg log(cm.s**-2) stat.error float vsini Broadening velocity km/s phys.veloc double e_vsini rms uncertainty on vsini km/s stat.error;phys.veloc.rotat double [Fe/H] Fe abundance phys.abund.Fe double e_[Fe/H] rms uncertainty on [Fe/H] stat.error;phys.abund.Fe double [Ca/Fe] Ca abundance phys.abund double e_[Ca/Fe] rms uncertainty on [Ca/Fe] stat.error;phys.abund double [Ti/Fe] Ti abundance phys.abund double e_[Ti/Fe] rms uncertainty on [Ti/Fe] stat.error;phys.abund double [Si/Fe] Si abundance phys.abund double e_[Si/Fe] rms uncertainty on [Si/Fe] stat.error;phys.abund double [Ni/Fe] Ni abundance phys.abund double e_[Ni/Fe] rms uncertainty on [Ni/Fe] stat.error;phys.abund double chisq Chi2 value of stellar label fitting stat.fit.chi2 double _RA Positions from Gaia DR3 (right ascension part) deg pos.eq.ra;meta.main indexed _DE Positions from Gaia DR3 (declination part) deg pos.eq.dec;meta.main indexed