J/A+A/615/A151 Lithium abundances in 714 F and G dwarf stars (Bensby+, 2018)
Exploring the production and depletion of lithium in the Milky Way stellar disk. Bensby T., Lind K. <Astron. Astrophys. 615, A151 (2018)> =2018A&A...615A.151B (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Stars, G-type ; Abundances Keywords: Galaxy: disk - Galaxy: formation - Galaxy: evolution - stars: abundances - stars: fundamental parameters Abstract: We perform a detailed analysis of Li in 714 nearby dwarf stars. Li abundances were determined through spectral line synthesis of the Li feature at 670.8 nm. The stellar sample traces the evolution of the Galactic thin and thick disks in the solar neighbourhood, and is the same as previously analysed by Bensby et al. (2014, Cat. J/A+A/562/A71) where stellar parameters and ages were taken from. The same sample was also used in Battistini & Bensby (2015, Cat. J/A+A/577/A9, 2016, Cat. J/A+A/586/A49) wherein abundances for odd iron-peak elements and r- and s-process elements can be found. Description: For each star we give the NLTE corrected Li abundance, the applied NLTE correction, and uncertainties in the form of NLTE corrected Li abundances based on the same analysis but increasing and decreasing the effective temperatures with their uncertainties. 394 stars have "good" Li abundances (flag=0 in Flag column), and 121 stars have only upper Li upper limits (flag=1 in Flag column). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 127 714 *Li abundances and uncertainties.
Note on table2.dat: Stellar parameters, stellar ages, and masses were copied from Bensby et al., 2014, Cat. J/A+A/562/A71).
See also: J/A+A/562/A71 : Chemical abundances of solar neighbourhood dwarfs (Bensby+, 2014) J/A+A/577/A9 : Sc, V, Mn, and Co in Milky Way stars (Battistini+, 2015) J/A+A/586/A49 : r- and s- process elements in Milky Way disk (Battistini+, 2016) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
3- 8 I6 --- HIP Hipparcos number 12- 15 I4 K Teff Effective temperature 18- 21 I4 K e_Teff Effective temperature uncertainty 25- 28 F4.2 [cm/s2] logg Surface gravity 32- 35 F4.2 [cm/s2] e_logg Surface gravity uncertainty 39- 43 F5.2 Sun [Fe/H] Iron abundance normalised to Sun 47- 50 F4.2 Sun e_[Fe/H] Iron abundance uncertainty 54- 57 F4.2 Msun M Stellar mass 61- 64 F4.2 Msun b_M Lower limit on stellar mass 68- 71 F4.2 Msun B_M Upper limit on stellar mass 75- 78 F4.1 Gyr Age Stellar age 82- 85 F4.1 Gyr b_Age Lower limit on stellar age 89- 92 F4.1 Gyr B_Age Upper limit on stellar age 96-100 F5.2 [-] ALi ? NLTE corrected Li abundance 104-108 F5.2 [-] b_ALi ? NLTE corrected lower Li abundance 112-115 F4.2 [-] B_ALi ? NLTE corrected upper Li abundance 119-123 F5.2 [-] NLTE ? NLTE correction that were applied 127 I1 --- l_ALi [0/1]? Limit flag on ALi (1)
Note (1): Limit flag on ALi as follows: 1 = upper limit 0 = well-detected Li line
Acknowledgements: Thomas Bensby, tbensby(at)astro.lu.se
(End) Thomas Bensby [Lund Obs., Sweden], Patricia Vannier [CDS] 23-Apr-2018
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