Gaia FGK benchmark stars: opening the black box of stellar element abundance determination

his work results from a workshop organised in the Institute of Astronomy, University of Cambridge in February 2016 and was partly supported by the European Union FP7 programme through ERC grant number 320360. We thank the referee for valuable comments on the manuscript. P.J. acknowledges partial support of King’s College Cambridge. U.H. acknowledges support from the Swedish National Space Board (SNSB/Rymdstyrelsen). S.B.C. want to thank Laurent Eyer from the University of Geneva for his support for this work. V.A. acknowledges the support of the Fundacao para a Ciencia e Tecnologia (FCT – Portugal) in the form of the grant SFRH/BPD/70574/2010. V.A. was also supported by FCT through the research grants (ref. PTDC/FIS-AST/7073/2014 and Ref. PTDC/FIS-AST/1526/2014) through national funds and by FEDER through COMPETE2020 (Refs. POCI-01-0145-FEDER-016880 and POCI-01-0145-FEDER-016886). This work has used ESO archive data of the star HD 22879 taken with Programme ID: 080.D-0347(A) (PI: U. Heiter). S.B. acknowledges funds from the Alexander von Humboldt Foundation in the framework of the Sofja Kovalevskaja Award endowed by the Federal Ministry of Education. LC acknowledges the support by the MINECO (Spanish Ministry of Economy) – FEDER through grant ESP2014-55996-C2-1-R and MDM-2014-0369 of ICCUB (Unidad de Excelencia “Maria de Maeztu”). L.C. also acknowledges financial support from the University of Barcelona under the APIF grant.

[1]  M. Tsantaki,et al.  New Teff and [Fe/H] spectroscopic calibration for FGK dwarfs and GK giants , 2016, 1608.08392.

[2]  A. Anbar,et al.  A COMPARISON OF STELLAR ELEMENTAL ABUNDANCE TECHNIQUES AND MEASUREMENTS , 2016, 1607.03130.

[3]  J. Valenti,et al.  Spectroscopy Made Easy: Evolution , 2016, 1606.06073.

[4]  M. Asplund,et al.  Nucleosynthetic history of elements in the Galactic disk - [X/Fe]–age relations from high-precision spectroscopy , 2016, 1606.04842.

[5]  G. Gilmore,et al.  Gaia FGK benchmark stars: new candidates at low metallicities , 2016, 1605.08229.

[6]  Y. Elsworth,et al.  An accurate and self-consistent chemical abundance catalogue for the APOGEE/Kepler sample , 2016, 1604.08800.

[7]  M. T. Maia,et al.  The Solar Twin Planet Search III. The [Y/Mg] clock: estimating stellar ages of solar-type stars , 2016, 1604.05733.

[8]  Joss Bland-Hawthorn,et al.  The Galaxy in Context: Structural, Kinematic, and Integrated Properties , 2016, 1602.07702.

[9]  C. Prieto.  Automated pipelines for spectroscopic analysis , 2016, 1602.01115.

[10]  H. Rix,et al.  Label Transfer from APOGEE to LAMOST: Precise Stellar Parameters for 450,000 LAMOST Giants , 2016, 1602.00303.

[11]  Nicholas Troup,et al.  ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE , 2015, 1510.07635.

[12]  Paula Jofre,et al.  Gaia benchmark stars and their twins in the Gaia-ESO Survey , 2015, 1512.05216.

[13]  E. Grebel,et al.  SP_Ace: a new code to derive stellar parameters and elemental abundances , 2015, 1512.01546.

[14]  M. Tsantaki,et al.  Identifying the best iron-peak and α-capture elements for chemical tagging: The impact of the number of lines on measured scatter , 2015, 1509.02419.

[15]  V. Adibekyan,et al.  Gaia FGK benchmark stars: abundances of α and iron-peak elements , 2015, 1507.00027.

[16]  A. Korn,et al.  Gaia FGK benchmark stars: Effective temperatures and surface gravities , 2015, 1506.06095.

[17]  A. Casey,et al.  Climbing the cosmic ladder with stellar twins , 2015, 1505.07806.

[18]  M. Asplund,et al.  Atomic and molecular data for optical stellar spectroscopy , 2015, 1506.06697.

[19]  P. Nissen.  High-precision abundances of elements in solar twin stars - Trends with stellar age and elemental condensation temperature , 2015, 1504.07598.

[20]  S. G. Sousa,et al.  ARES v2 - new features and improved performance , 2015, 1504.02725.

[21]  G. Carraro,et al.  Testing the chemical tagging technique with open clusters , 2015, 1503.02082.

[22]  U. Munari,et al.  The GALAH survey: scientific motivation , 2015, Monthly Notices of the Royal Astronomical Society.

[23]  C. Prieto,et al.  THE SDSS-III APOGEE SPECTRAL LINE LIST FOR H-BAND SPECTROSCOPY , 2015, 1502.04080.

[24]  C. Saffe,et al.  Stellar parameters and chemical abundances of 223 evolved stars with and without planets , 2014, 1410.6422.

[25]  G. Gilmore,et al.  On the relative ages of the α-rich and α-poor stellar populations in the Galactic halo , 2014, 1409.3431.

[26]  L. Pasquini,et al.  The Gaia-ESO Survey: the analysis of high-resolution UVES spectra of FGK-type stars , 2014, 1409.0568.

[27]  C. Soubiran,et al.  Determining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec , 2014, 1407.2608.

[28]  F. Timmes,et al.  STELLAR ABUNDANCES IN THE SOLAR NEIGHBORHOOD: THE HYPATIA CATALOG , 2014, 1405.6719.

[29]  U. Heiter,et al.  The Gaia FGK benchmark stars - High resolution spectral library , 2014, 1403.3090.

[30]  A. Vallenari,et al.  DOOp, an automated wrapper for DAOSPEC , 2013, 1312.3676.

[31]  M. Bergemann,et al.  Fundamental stellar parameters and metallicities from Bayesian spectroscopy: application to low- and high-resolution spectra , 2013, 1311.5558.

[32]  D. A. García-Hernández,et al.  THE TENTH DATA RELEASE OF THE SLOAN DIGITAL SKY SURVEY: FIRST SPECTROSCOPIC DATA FROM THE SDSS-III APACHE POINT OBSERVATORY GALACTIC EVOLUTION EXPERIMENT , 2013, 1307.7735.

[33]  D. O. Astronomy,et al.  Exploring the Milky Way stellar disk - A detailed elemental abundance study of 714 F and G dwarf stars in the solar neighbourhood , 2013, 1309.2631.

[34]  José A. Gómez Hernández,et al.  Gaia FGK benchmark stars: Metallicity , 2013, 1309.1099.

[35]  K. Nomoto,et al.  Nucleosynthesis in Stars and the Chemical Enrichment of Galaxies , 2013 .

[36]  Ansgar Reiners,et al.  A new extensive library of PHOENIX stellar atmospheres and synthetic spectra , 2013, 1303.5632.

[37]  F. Ferraro,et al.  GALA: AN AUTOMATIC TOOL FOR THE ABUNDANCE ANALYSIS OF STELLAR SPECTRA , 2013, 1302.3618.

[38]  Z. Magic,et al.  The Stagger-grid: A grid of 3D stellar atmosphere models - I. Methods and general properties , 2013, 1302.2621.

[39]  C. Prieto,et al.  OXYGEN ABUNDANCES IN NEARBY FGK STARS AND THE GALACTIC CHEMICAL EVOLUTION OF THE LOCAL DISK AND HALO , 2013, 1301.1582.

[40]  V. Adibekyan,et al.  Exploring the α-enhancement of metal-poor planet-hosting stars. The Kepler and HARPS samples , 2012, 1209.6272.

[41]  Pascal Jagourel,et al.  WEAVE: the next generation wide-field spectroscopy facility for the William Herschel Telescope , 2012, Other Conferences.

[42]  M. Ireland,et al.  Comparative modelling of the spectra of cool giants , 2012, 1209.2656.

[43]  P. Molaro,et al.  Solar atlas revised , 2012 .

[44]  Wonseok Kang,et al.  Tool for Automatic Measurement of Equivalent width (TAME) , 2012, 1207.2845.

[45]  V. Adibekyan,et al.  Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program - Galactic stellar populations and planets , 2012, 1207.2388.

[46]  H. Tabernero,et al.  Chemically tagging the Hyades Supercluster - A homogeneous sample of F6-K4 kinematically selected northern stars , 2012, 1205.4879.

[47]  A. Bijaoui,et al.  The AMBRE Project: Stellar parameterisation of the ESO:FEROS archived spectra , 2012, 1204.1041.

[48]  Canada.,et al.  Manganese in dwarf spheroidal galaxies , 2012, 1203.4491.

[49]  Sergio Ortolani,et al.  The Gaia-ESO Public Spectroscopic Survey , 2012 .

[50]  E. A. Den Hartog,et al.  IMPROVED log(gf ) VALUES OF SELECTED LINES IN Mn i AND Mn ii FOR ABUNDANCE DETERMINATIONS IN FGK DWARFS AND GIANTS , 2011 .

[51]  William J. Schuster,et al.  Two distinct halo populations in the solar neighborhood - Evidence from stellar abundance ratios and kinematics , 2010, 1002.4514.

[52]  C. Hansen,et al.  Stellar atmosphere parameters with MAx, a MAssive compression of x^2 for spectral fitting , 2010, 1001.1223.

[53]  L. Wallace,et al.  THE 236.6–5400.0 nm SPECTRUM OF Cr i , 2009 .

[54]  Yue Wu,et al.  ULySS: a full spectrum fitting package , 2009, 0903.2979.

[55]  N. Santos,et al.  Chemical abundances of 451 stars from the HARPS GTO planet search program - Thin disc, thick disc, and planets , 2009, 0902.3374.

[56]  P. Stetson,et al.  DAOSPEC: An Automatic Code for Measuring Equivalent Widths in High-Resolution Stellar Spectra , 2008, 0811.2932.

[57]  A. Boyarchuk,et al.  Cobalt in stars and the galaxy , 2008 .

[58]  Kjell Eriksson,et al.  A grid of MARCS model atmospheres for late-type stars. I. Methods and general properties , 2008, 0805.0554.

[59]  J. Lawler,et al.  Improved Laboratory Transition Probabilities for Neutral Chromium and Redetermination of the Chromium Abundance for the Sun and Three Stars , 2007, 0707.4603.

[60]  Lund,et al.  Manganese trends in a sample of thin and thick disk stars - The origin of Mn , 2007, astro-ph/0703488.

[61]  I. McLean,et al.  Ground-based and Airborne Instrumentation for Astronomy , 2006 .

[62]  Olivier Bienayme,et al.  THE RADIAL VELOCITY EXPERIMENT (RAVE): FIFTH DATA RELEASE , 2013, 1609.03210.

[63]  A. Bijaoui,et al.  Automated derivation of stellar atmospheric parameters and chemical abundances: the MATISSE algorithm , 2006, astro-ph/0604385.

[64]  B. Yanny,et al.  A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey , 2005, astro-ph/0509812.

[65]  J. Valenti,et al.  Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs , 2005 .

[66]  K. Cunha,et al.  Abundances of Mn, Co and Eu in a sample of 20 F–G disk stars: the influence of hyperfine structure splitting , 2005, astro-ph/0506586.

[67]  J. Pickering,et al.  Hyperfine Structure Measurements of Neutral Manganese with Fourier Transform Spectroscopy , 2005 .

[68]  M. Asplund,et al.  The Solar Chemical Composition , 2004, astro-ph/0410214.

[69]  Paul Barklem,et al.  A list of data for the broadening of metallic lines by neutral hydrogen collisions , 2000 .

[70]  J. Valenti,et al.  Spectroscopy Made Easy: A New Tool for Fitting Observations with Synthetic Spectra , 1996 .

[71]  Christopher J. Corbally,et al.  The calibration of MK spectral classes using spectral synthesis. 1: The effective temperature calibration of dwarf stars , 1994 .

[72]  H. Kronfeldt,et al.  Hyperfinestructure-investigations in the mangan I configurations 3d5 4s 4p and 4s 5s , 1987 .

[73]  P. Smith,et al.  Absolute oscillator strengths for lines of neutral cobalt between 2276 A and 9357 A and a redetermination of the solar cobalt abundance , 1982 .

[74]  G. Smith,et al.  Oscillator strengths and collisional damping parameters for lines of neutral calcium , 1981 .

[75]  R. Kurucz.  Model atmospheres for G, F, A, B, and O stars , 1979 .

[76]  H. Walther,et al.  The hyperfine splitting of the 3d54s4p levels of Mn I and the quadrupole moment of 55Mn , 1969 .

[77]  C. Schwartz,et al.  Theory of Hyperfine Structure , 1957 .

[78]  G. Shortley,et al.  The Theory of Atomic Spectra , 1935 .