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Table 1

Mean properties of the samples.

Nr. With Min. Max. Evol. LTE or Pop.1 Pop.2 Pop.3 Comm. Mean off. Mean off. Ref.
stars Na [Fe/H] [Fe/H] stage NLTE stars [Fe/H] [Na/H]

G 150 147 −2.61 +0.07 dwarfs, NLTE accret. dissip. thin Gratton et al. (2003)
SGB comp. comp. disk
CA 286 237 −2.84 +0.29 dwarfs, NLTE halo thick thin 41 −0.10 dex +0.01 dex Carretta et al. (2000)
giants disk disk σ = 0.07 σ = 0.08
GR 58 49 −2.31 −0.63 dwarfs, NLTE halo thick 14 −0.13 dex −0.02 dex Gratton et al. (2000)
giants disk σ = 0.05 σ = 0.09

N 94 94 −1.60 −0.63 dwarfs LTE halo thick 35 −0.05 dex −0.06 dex Nissen & Schuster (2010)
disk σ = 0.07 σ = 0.04
F 178 174 −3.01 −0.05 dwarfs, LTE halo thick thin 110 +0.05 dex +0.06 dex Fulbright (2000)
giants disk disk σ = 0.06 σ = 0.05
H 59 59 −2.93 −0.91 giants LTE halo 32 +0.05 dex +0.27 dex Hanson et al. (1998)
σ = 0.12 σ = 0.16
GE 55 55 −3.12 −0.14 dwarfs NLTE halo thick thin 23 −0.03 dex −0.00 dex Gehren et al. (2006)
disk disk σ = 0.05 σ = 0.07
J 43 42 −2.99 −0.45 turnoff, LTE halo thick 18 +0.00 dex −0.03 dex Jonsell et al. (2005)
SGB disk σ = 0.08 σ = 0.06
M3 100 100 −2.66 +0.25 dwarfs, NLTE halo thick thin 34 −0.04 dex −0.11 dex Mishenina et al. (2003)
giants disk disk σ = 0.09 σ = 0.17
A 1111 1110 −1.39 +0.55 dwarfs LTE halo thick thin 24 −0.07 dex −0.08 dex Adibekyan et al. (2012)
disk disk σ = 0.07 σ = 0.11
R 176 164 −1.98 +0.37 dwarfs LTE halo thick thin 43 −0.07 dex −0.05 dex Reddy et al. (2006)
disk disk σ = 0.08 σ = 0.08
M1 142 142 −0.96 +0.32 dwarfs LTE thick thin Her mov. 10 +0.01 dex +0.04 dex Mishenina et al. (2011)
disk disk group σ = 0.07 σ = 0.06
B 102 102 −0.91 +0.37 dwarfs LTE thick thin 8 −0.09 dex −0.05 dex Bensby et al. (2005)
disk disk σ = 0.14 σ = 0.07
C 90 81 −1.04 +0.08 dwarfs LTE thin 5 +0.01 dex +0.06 dex Chen et al. (2000)
disk σ = 0.04 σ = 0.05

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