J/AJ/142/193       RAVE stellar elemental abundances (DR1)       (Boeche+, 2011)
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The RAVE catalog of stellar elemental abundances: first data release.
    Boeche C., Siebert A., Williams M., de Jong R.S., Steinmetz M.,
    Fulbright J.P., Ruchti G.R., Bienayme O., Bland-Hawthorn J., Campbell R.,
    Freeman K.C., Gibson B.K., Gilmore G., Grebel E.K., Helmi A., Munari U.,
    Navarro J.F., Parker Q.A., Reid W., Seabroke G.M., Siviero A., Watson F.G.,
    Wyse R.F.G., Zwitter T.
   <Astron. J., 142, 193 (2011)>
   =2011AJ....142..193B
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ADC_Keywords: Abundances ; Spectroscopy ; Milky Way
Keywords: catalogs - Galaxy: abundances - Galaxy: evolution -
          stars: abundances - surveys - techniques: spectroscopic

Abstract:
    We present chemical elemental abundances for 36561 stars observed by
    the RAdial Velocity Experiment (RAVE), an ambitious spectroscopic
    survey of our Galaxy at Galactic latitudes |b|>25{deg} and with
    magnitudes in the range 9<I_DENIS_<13. RAVE spectra cover the
    Ca-triplet region at 8410-8795{AA} with resolving power R~7500. This
    first data release of the RAVE chemical catalog is complementary to
    the third RAVE data release of radial velocities and stellar
    parameters, and it contains chemical abundances for the elements Mg,
    Al, Si, Ca, Ti, Fe, and Ni, with a mean error of ~0.2dex, as judged
    from accuracy tests performed on synthetic and real spectra.
    Abundances are estimated through a dedicated processing pipeline in
    which the curve of growth of individual lines is obtained from a
    library of absorption line equivalent widths to construct a model
    spectrum that is then matched to the observed spectrum via a {chi}^2^
    minimization technique. We plan to extend this pipeline to include
    estimates for other elements, such as oxygen and sulfur, in future
    data releases.

Description:
    This first release of the RAVE chemical catalog reports the chemical
    abundances of seven elements (Mg, Al, Si, Ca, Ti, Fe, Ni) for 36561
    stars (from 37848 spectra) selected from the RAVE DR3 (Cat. III/265).

File Summary:
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 FileName   Lrecl  Records   Explanations
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ReadMe         80        .   This file
table2.dat    166    37848   Catalog of stellar elemental abundances (DR1)
table4.dat     41      615   The RAVE line list
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See also:
 B/pastel : The PASTEL catalogue (Soubiran+, 2010-)
 III/265 : RAVE 3rd data release (Siebert+, 2011)
 V/130   : Geneva-Copenhagen Survey of Solar neighbourhood III (Holmberg+, 2009)
 III/193 : Chemical Abundances in Late-Type Stars (Thevenin, 1998)
 J/A+A/275/101  : Chemical evolution of the galactic disk I. (Edvardsson+ 1993)
 J/AJ/128/1177  : Galactic stellar abundances (Venn+, 2004)
 J/AJ/129/1063  : Abundances of stars within 15pc of the Sun (Luck+, 2005)
 J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
 J/A+A/438/139  : Abundances in Milky Way's disk (Soubiran+, 2005)
 J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)
 J/AJ/133/2464  : Parameters and abundances of nearby giants (Luck+, 2007)
 J/A+A/511/A90  : RAVE distance catalogue (Breddels+, 2010)
 J/A+A/522/A54  : Distance determination for RAVE stars. II. (Zwitter+, 2010)
 J/AJ/140/184   : RAVE double-lined spectroscopic binaries (Matijevic+, 2010)
 J/ApJ/737/9    : RAVE data of stars in the thick disk (Ruchti+, 2011)
 J/MNRAS/419/2844 : Radial metallicity gradient from RAVE DR3 (Coskunoglu+ 2012)
 http://www.rave-survey.org/ : RAVE home page

Byte-by-byte Description of file: table2.dat
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   Bytes Format Units     Label   Explanations
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   1- 16  A16   ---       RAVE    RAVE target designation (JHHMMSS.s+DDMMSS)
  18- 33  A16   ---       Name    Target designation
  35- 42  I8  "YYYYMMDD"  Date    [20040403/20060331] Date of observation
  44- 51  A8    ---       Field   Name of RAVE field (HHMMmDDa)
  53- 55  I3    ---       Fiber   [1/150] Fiber number
  57- 61  F5.2  [-]       [Mg/H]  ?=-9.99 Log of the Mg/H number abundance (1)
      63  I1    ---     o_[Mg/H]  Number of Mg lines measured for Mg/H
  65- 69  F5.2  [-]       [Al/H]  ?=-9.99 Log of the Al/H number abundance (1)
      71  I1    ---     o_[Al/H]  Number of Al lines measured for Al/H
  73- 77  F5.2  [-]       [Si/H]  ?=-9.99 Log of the Si/H number abundance (1)
  79- 80  I2    ---     o_[Si/H]  Number of Si lines measured for Si/H
  82- 86  F5.2  [-]       [Ca/H]  ?=-9.99 Log of the Ca/H number abundance (1)
      88  I1    ---     o_[Ca/H]  Number of Ca lines measured for Ca/H
  90- 94  F5.2  [-]       [Ti/H]  ?=-9.99 Log of the Ti/H number abundance (1)
  96- 97  I2    ---     o_[Ti/H]  Number of Ti lines measured for Ti/H
  99-103  F5.2  [-]       [Fe/H]  [-2.48/1.02]?=-9.99 Log of the Fe/H number
                                   abundance (1)
 105-106  I2    ---     o_[Fe/H]  Number of Fe lines measured for Fe/H
 108-112  F5.2  [-]       [Ni/H]  ?=-9.99 Log of the Ni/H number abundance (1)
     114  I1    ---     o_[Ni/H]  Number of Ni line measured for Ni/H
 116-119  I4    K         Teff    [4000/6999] RAVE effective temperature
 121-124  F4.2  [cm/s2]   log(g)  [0.04/4.99] Log of RAVE gravity
 126-130  F5.2  [-]       [m/H]R  [-2.31/0.5] RAVE metallicity
 132-136  F5.2  [-]       [m/H]c  ?=-9.99 Metallicity from chemical pipeline
 138-142  F5.2  [-]       [a/Fe]c [-0.83/1.1]?=-9.99 The {alpha}-enhancement
                                   from chemical pipeline
 144-148  F5.1  ---       S/N     [19.9/219.4] Signal-to-Noise ratio
 150-153  F4.2  ---       Frac    [0/1] Fraction of spectrum matching
                                   template well (2)
 155-157  I3    ---       Ntot    [0/547] Total number of lines measured
 159-166  F8.1  ---       chi2    The {chi}^2^ between observed and template
                                  spectra
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Note (1): We adopted the solar abundances given by Grevesse & Sauval
          (1998SSRv...85..161G).
Note (2): See section 2.7 for the explanation of the process repeated for all
          the pixels of the spectrum, resulting in an array of 0 and 1, with 1
          label indicating non-defective pixels.
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Byte-by-byte Description of file: table4.dat
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   Bytes Format Units Label    Explanations
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   1-  8  F8.3  0.1nm lambda   [8401.4/8798.08] Wavelength {lambda}
  10- 14  F5.1  ---   Species  [1/607] Atomic species (1)
  16- 24  F9.6  eV    ExPot    [0.599266/12.0883] Excitation potential
  26- 31  F6.3  [-]   log(gf)  [-6.252/0.536] Log of the oscillator strength (2)
  33- 36  F4.2  ---   E        [0/6.5] Enhancement factor for the Unsold
                                approximation
  38- 41  F4.2  eV    Edis     [0/7.75] Dissociation energy (3)
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Note (1): In the format XX.Y where XX is the atomic number and Y is the level
          of ionization, e.g. 26.0=Fe I. The atomic species 607.0 represent
          the CN molecule, following the MOOG format.
Note (2): The whole table contains 604 lines with log gf correction, and the 3
          Ca II and 8 HI lines which are not used for elemental abundance
          measurements (and did not undergo to log(gf) corrections).
Note (3): For the CN molecule the dissociation energy is D=7.75eV, as
          suggested by Sauval & Grevesse (1994IAUS..154..549S).
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History:
    From electronic version of the journal

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(End)                Greg Schwarz [AAS], Sylvain Guehenneux [CDS]    22-Mar-2013