The GALAH+ Survey : Third Data Release
dc.contributor.author | Buder, Sven | |
dc.contributor.author | Sharma, Sanjib | |
dc.contributor.author | Kos, Janez | |
dc.contributor.author | Amarsi, Anish M. | |
dc.contributor.author | Nordlander, Thomas | |
dc.contributor.author | Lind, Karin | |
dc.contributor.author | Martell, Sarah L. | |
dc.contributor.author | Asplund, Martin | |
dc.contributor.author | Bland-Hawthorn, Joss | |
dc.contributor.author | Casey, Andrew R. | |
dc.contributor.author | Silva, Gayandhi M. De | |
dc.contributor.author | D'Orazi, Valentina | |
dc.contributor.author | Freeman, Ken C. | |
dc.contributor.author | Hayden, Michael R. | |
dc.contributor.author | Lewis, Geraint F. | |
dc.contributor.author | Lin, Jane | |
dc.contributor.author | Schlesinger, Katharine J. | |
dc.contributor.author | Simpson, Jeffrey D. | |
dc.contributor.author | Stello, Dennis | |
dc.contributor.author | Zucker, Daniel B. | |
dc.contributor.author | Zwitter, Tomaz | |
dc.contributor.author | Beeson, Kevin L. | |
dc.contributor.author | Buck, Tobias | |
dc.contributor.author | Casagrande, Luca | |
dc.contributor.author | Clark, Jake T. | |
dc.contributor.author | Cotar, Klemen | |
dc.contributor.author | Costa, Gary S. Da | |
dc.contributor.author | Grijs, Richard de | |
dc.contributor.author | Feuillet, Diane | |
dc.contributor.author | Horner, Jonathan | |
dc.contributor.author | Kafle, Prajwal R. | |
dc.contributor.author | Khanna, Shourya | |
dc.contributor.author | Kobayashi, Chiaki | |
dc.contributor.author | Liu, Fan | |
dc.contributor.author | Montet, Benjamin T. | |
dc.contributor.author | Nandakumar, Govind | |
dc.contributor.author | Nataf, David M. | |
dc.contributor.author | Ness, Melissa K. | |
dc.contributor.author | Spina, Lorenzo | |
dc.contributor.author | Tepper-Garcia, Thor | |
dc.contributor.author | Ting, Yuan-Sen | |
dc.contributor.author | Traven, Gregor | |
dc.contributor.author | Vogrincic, Rok | |
dc.contributor.author | Wittenmyer, Robert A. | |
dc.contributor.author | Wyse, Rosemary F. G. | |
dc.contributor.author | Zerjal, Marusa | |
dc.contributor.author | collaboration, the GALAH | |
dc.date.accessioned | 2021-05-26T12:00:01Z | |
dc.date.available | 2021-05-26T12:00:01Z | |
dc.date.issued | 2021-05-06 | |
dc.identifier.citation | Buder , S , Sharma , S , Kos , J , Amarsi , A M , Nordlander , T , Lind , K , Martell , S L , Asplund , M , Bland-Hawthorn , J , Casey , A R , Silva , G M D , D'Orazi , V , Freeman , K C , Hayden , M R , Lewis , G F , Lin , J , Schlesinger , K J , Simpson , J D , Stello , D , Zucker , D B , Zwitter , T , Beeson , K L , Buck , T , Casagrande , L , Clark , J T , Cotar , K , Costa , G S D , Grijs , R D , Feuillet , D , Horner , J , Kafle , P R , Khanna , S , Kobayashi , C , Liu , F , Montet , B T , Nandakumar , G , Nataf , D M , Ness , M K , Spina , L , Tepper-Garcia , T , Ting , Y-S , Traven , G , Vogrincic , R , Wittenmyer , R A , Wyse , R F G , Zerjal , M & collaboration , T GALAH 2021 , ' The GALAH+ Survey : Third Data Release ' , Monthly Notices of the Royal Astronomical Society . https://doi.org/10.1093/mnras/stab1242 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2011.02505v2 | |
dc.identifier.other | ORCID: /0000-0002-4343-0487/work/94626066 | |
dc.identifier.uri | http://hdl.handle.net/2299/24528 | |
dc.description | © 2021 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1093/mnras/stab1242 | |
dc.description.abstract | The ensemble of chemical element abundance measurements for stars, along with precision distances and orbit properties, provides high-dimensional data to study the evolution of the Milky Way. With this third data release of the Galactic Archaeology with HERMES (GALAH) survey, we publish 678 423 spectra for 588 571 mostly nearby stars (81.2% of stars are within 75 stellar clusters. We derive stellar parameters $T_\text{eff}$, $\log g$, [Fe/H], $v_\text{mic}$, $v_\text{broad}$ & $v_\text{rad}$ using our modified version of the spectrum synthesis code Spectroscopy Made Easy (SME) and 1D MARCS model atmospheres. We break spectroscopic degeneracies in our spectrum analysis with astrometry from $Gaia$ DR2 and photometry from 2MASS. We report abundance ratios [X/Fe] for 30 different elements (11 of which are based on non-LTE computations) covering five nucleosynthetic pathways. We describe validations for accuracy and precision, flagging of peculiar stars/measurements and recommendations for using our results. Our catalogue comprises 65% dwarfs, 34% giants, and 1% other/unclassified stars. Based on unflagged chemical composition and age, we find 62% young low-$\alpha$, 9% young high-$\alpha$, 27% old high-$\alpha$, and 2% stars with $\mathrm{[Fe/H]} \leq -1$. Based on kinematics, 4% are halo stars. Several Value-Added-Catalogues, including stellar ages and dynamics, updated after $Gaia$ eDR3, accompany this release and allow chrono-chemodynamic analyses, as we showcase. | en |
dc.format.extent | 53 | |
dc.format.extent | 9386634 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | astro-ph.GA | |
dc.subject | astro-ph.SR | |
dc.title | The GALAH+ Survey : Third Data Release | en |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stab1242 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true |