Non-LTE aluminium abundances in late-type stars | Astronomy & Astrophysics (A&A)

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Volume 607 (November 2017)

A&A, 607 (2017) A75

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Table 1

Stellar parameters of standard stars, and results of the abundance analyses.

Star

T _eff

log g

[Fe/H]

v _mic

Reference

A(Al)

[K]

[cgs]

[km s^-1]

1D LTE

1D NLTE

⟨ 3D ⟩ NLTE

3D NLTE

Sun

5771

4.44

0.00

1.09

B12, H15

6.42 ± 0.03

6.46 ± 0.03

6.43 ± 0.03

Arcturus

4247

1.59

−0.52

1.63

J14, O15

6.23 ± 0.08

6.11 ± 0.05

6.10 ± 0.05

Pollux

4858

2.90

0.13

1.28

J14, H15, J15

6.55 ± 0.04

6.54 ± 0.06

HD 22879

5786

4.23

−0.86

1.16

J14

5.72 ± 0.20

5.78 ± 0.08

5.79 ± 0.08

HD 84937

6408

4.13

−2.03

1.40

B12

3.47 ± 0.15

3.85 ± 0.14

3.87 ± 0.12

HD 140283

5777

3.67

−2.40

1.23

B12, J14, O15

3.14 ± 0.14

3.57 ± 0.12

3.52 ± 0.12

HD 122563

4608

1.61

−2.64

1.50

J14, O15

3.56 ± 0.25

3.65 ± 0.17

3.65 ± 0.10

SMSS0313^a

5125

2.30

<–6.53

2.00

K14, N17

<0.74

<1.29

<1.22

<1.30

Notes. The abundance results are unweighted arithmetic mean values, with the uncertainty signifying the line-to-line scatter, except for the Sun where lines are weighted and systematic errors are included in the uncertainty. The recommended abundance is given in the rightmost available column for every star.

^(a)

Upper limits (3σ) on Al from Nordlander et al. (2017).

Reference. B12: Bergemann et al. (2012); J14: Jofré et al. (2014); K14: Keller et al. (2014); H15: Heiter et al. (2015); J15: Jofré et al. (2015); O15: Osorio et al. (2015); N17: Nordlander et al. (2017).

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