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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 127 714 *Li abundances and uncertainties.
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Note on table2.dat: Stellar parameters, stellar ages, and masses were copied
from Bensby et al., 2014, Cat. J/A+A/562/A71).
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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
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Bytes Format Units Label Explanations
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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)
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Note (1): Limit flag on ALi as follows:
1 = upper limit
0 = well-detected Li line
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Acknowledgements:
Thomas Bensby, tbensby(at)astro.lu.se
(End) Thomas Bensby [Lund Obs., Sweden], Patricia Vannier [CDS] 23-Apr-2018