J/ApJ/898/119ivo://CDS.VizieR/J/ApJ/898/119doi:10.26093/cds/vizier.18980119CDSRice M.Brewer J.M.2023-03-06T08:11:56Z2021-12-15T12:51:49ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvisible-astronomyspectroscopyastronomical-modelschemical-abundanceseffective-temperatureTo accurately interpret the observed properties of exoplanets, it is necessary to first obtain a detailed understanding of host star properties. However, physical models that analyze stellar properties on a per-star basis can become computationally intractable for sufficiently large samples. Furthermore, these models are limited by the wavelength coverage of available spectra. We combine previously derived spectral properties from the Spectroscopic Properties of Cool Stars (SPOCS) catalog with generative modeling using The Cannon to produce a model capable of deriving stellar parameters (logg, Teff, and vsini) and 15 elemental abundances (C, N, O, Na, Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Ni, and Y) for stellar spectra observed with Keck Observatory's High Resolution Echelle Spectrometer (HIRES). We demonstrate the high accuracy and precision of our model, which takes just ~3s to classify each star, through cross-validation with pre-labeled spectra from the SPOCS sample. Our trained model, which takes continuum-normalized template spectra as its inputs, is publicly available at http://github.com/malenarice/keckspec. Finally, we interpolate our spectra and employ the same modeling scheme to recover labels for 477 stars using archival stellar spectra obtained prior to Keck's 2004 detector upgrade, demonstrating that our interpolated model can successfully predict stellar labels for different spectrographs that have (1) sufficiently similar systematics and (2) a wavelength range that substantially overlaps with that of the post-2004 HIRES spectra.2020ApJ...898..119Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/898/119CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)J/A+A/497/497 : Physical parameters from JHK flux (Gonzalez-Hernandez+, 2009)J/A+A/512/A54 : Teff and Fbol from Infrared Flux Method (Casagrande+, 2010)J/AJ/148/54 : The Hypatia Catalog ((Hinkel+, 2014)J/ApJ/808/16 : Cannon: a new approach to determine abundances (Ness+, 2015)J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/ApJ/823/114 : The Cannon: a new approach to determine masses (Ness+, 2016)J/AJ/153/208 : LCES HIRES/Keck RVel Exoplanet Survey (Butler+, 2017)J/ApJ/836/5 : Abundances of LAMOST giants from APOGEE DR12 (Ho+, 2017)J/ApJ/836/77 : A library of high-S/N opt. spectra of FGKM stars (Yee+, 2017)J/ApJS/237/38 : Extended abundance analysis of KOIs (Brewer+, 2018)J/MNRAS/478/4513 : GALAH Survey DR2 (Buder+, 2018)J/AJ/159/187 : RVs with the EXPRES spectrograph: 51Peg (Petersburg+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/898/119https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/898/119http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/898/119https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/898/119https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/898/119http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/898/119GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/898/119/table5 (Stellar labels returned by our trained model for archival, pre-2004 Keck HIRES spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/898/119/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/898/119/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/898/119/table5?GETtext/xml+votable180.050000true170.529460837.08754220.0055555555555555566/62 118 181 237 248 322 548 719 765 1028 1030 1033 1084 1098 1136 1209 1296 1330 1657 1790 1873 2111 2144 2231 2240 2254 2366 2491 2565 2622 2639 2652 2658 2737 2747 2777 2829 2870 2895 2961 3509 3638 3915 4128 4225 4274 4278 4735 4762 4808 4912 5088 5101 5108 5160 5230 5266 5406 5420 5476 5498 5527 5587 5622 5631 6087 6217 6256 6325 6523 6672 6699 6884 6890 7264 7443 8239 8255 8279 8286 8345 8433 8591 8602 8746 8748 8887 8896 9009 9074 9105 9179 9339 9354 9443 9480 9529 9537 9553 9602 9648 9766 9801 9807 9835 9871 10034 10179 10313 10325 10334 10350 10400 10701 10914 10926 11391 11405 11671 11746 11806 11862 12343 12465 12512 12634 12704 12899 12905 13032 13047 13106 13164 13480 13547 13567 13614 13778 14092 14266 14342 14411 14466 14531 14573 14649-14650 14662 14679 14821 14901 14904 14948 15007 15014 15044 15311 15505 15602 15658 15727 15864 15962 16274 16440 16502 16603 16758 17028 17274 17301 17308 17469 17502 17529 17541 17721 17726 17804 17928-17929 17989 18035 18112 18115 18184 18256 18327 18330 18425 18466 18615 18623 18637 18666 18696 18726 18747-18748 18785 18881 18966 19059 19064 19109 19140 19153 19186 19391 19470 19491 19554 19720 19796 19808 19900 19912 20005-20006 20015-20016 20020 20100 20127 20132 20144 20237 20400 20402 20446 20896 21386 21780 21838 21912 22040 22094 22240 22419 22654 22807 22813 22841 22969 23057 23068 23076 23096-23097 23118 23137 23141 23159 23323 23429 23548 23560 23575 23711 23731 23738 23818 24027 24036 24134 24227 24558 24628 24634 24777 24810 24831 24920 25037 25311 25405 25435 25567 25641 25854 25862 25920 25978 25989 26050 26305 26328 26429 26440 26555 26583 26636 26748 26809 26843 26888 26963 26972 27088 27124 27254-27255 27266 27374 27402 27462 27518 27616 27645 27712 27745 27750 27756 27910 27954 28009 28111 28173 28196 28244 28397 28451 28494 28664 28955 28961 29136 29196 29210 29289 29596 29598 29636 29684 29688 29756 29800 29807 29900 29978 30048 30166 30176 30195 30218 30227 30257 30308 30343 30419 30489 30577 30658 30703 30708 30759 30770-30771 30779 30939 30943 30951 30965 30989 31011 31015 31087 31132 31205 31279 31338 31369 31374 31411 31492 31517 31545 31582 31714 31772 31781 31785 31812 31821 31920 31984 32001 32027 32035 32089 32100 32115 32158 32257 32297 32328 32396 32399 32429 32431 32473 32491 32596 32609 32617 32765 34181 34597 35564 35691 35707 36288 36735 36784 36834 38698 38734 39422 40400 40784 40892 40938 42333 42760 42794 42845 42860 42874 42911 43818 43911 44115 44180 44221 44359 44366 44437 44514 44681 44816 44879 44921 44924 44936-44937 45029 46566 46874 46910 46956 46967 47858 48182 48373 48545 48736 48821 48906 48923 48964https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/898/119?format=asciiOpticaldefaultJ/ApJ/898/119/table5Stellar labels returned by our trained model for archival, pre-2004 Keck HIRES spectraSimbadNameSimbad column added by the CDSmeta.idcharnullableNameName of starmeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeff[4408/6797] Effective temperatureKphys.temperature.effectivefloatlogg[2.83/4.77] Log gravitylog(cm.s**-2)phys.gravityfloatvsini[-6.1/29.7] Line-of-sight velocitykm/sphys.velocfloatC/H[-0.67/0.53] Abundance of C relative to Hphys.abundfloatN/H[-1.08/0.58] Abundance of N relative to Hphys.abundfloatO/H[-0.42/0.47] Abundance of O relative to Hphys.abundfloatNa/H[-1.08/0.58] Abundance of Na relative to Hphys.abundfloatMg/H[-0.78/0.31] Abundance of Mg relative to Hphys.abundfloatAl/H[-0.92/0.8] Abundance of Al relative to Hphys.abundfloatSi/H[-0.76/0.39] Abundance of Si relative to Hphys.abundfloatCa/H[-0.84/0.41] Abundance of Ca relative to Hphys.abundfloatTi/H[-0.77/0.37] Abundance of Ti relative to Hphys.abundfloatV/H[-0.85/0.32] Abundance of V relative to Hphys.abundfloatCr/H[-1.11/0.39] Abundance of Cr relative to Hphys.abundfloatMn/H[-1.41/0.54] Abundance of Mn relative to Hphys.abundfloatFe/H[-1.02/0.4] Abundance of Fe relative to Hphys.abund.FefloatNi/H[-1/0.45] Abundance of Ni relative to Hphys.abundfloatY/H[-0.9/0.67] Abundance of Y relative to Hphys.abund.YfloatFlagReliability flag (1)meta.code.errorcharSPOCSDisplay data from SPOCS, Paper I (Valenti+, 2005, J/ApJS/159/141)meta.ref.urlintnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main