Table 1
Atmospheric parameters and chemical abundances for our reference stars.
| Star | Cool giants | Cool dwarfs | Hot dwarf | |||
|---|---|---|---|---|---|---|
| Arcturus | μ Leo | 61 Cyg A | ϵ Eri | Sun | Procyon | |
| Teff (K) | 4286 | 4474 | 4374 | 5076 | 5771 | 6554 |
| log(g) (g in cm s−2) | 1.60 | 2.51 | 4.63 | 4.61 | 4.44 | 4.00 Fe/H>Fe/H |
| (dex) | –0.55 | 0.22 | –0.36 | –0.12 | 0.00 | –0.04 α/Fe>α/Fe |
| (dex) | 0.22 | 0.12 | 0.02 | –0.01 | 0.00 | –0.07 |
| Vmicro (km s−1) | 1.95(a) | 1.95(a) | 1.07(b) | 1.14(b) | 0.87(c) | 1.69(d) |
| Vmacro (km s−1) | 4.30(a) | 2.58(a) | 1.83(c) | 2.91(c) | 3.57(c) | 4.60(d) |
| Vsin i (km s−1) | 3.80(a) | 5.06(a) | 0.70(e) | 2.40(c) | 1.60(c) | 2.80(d) |
| [C/Fe] (dex) | 0.43(f) | –0.18(g) | 0.60(h) | –0.06(h) | 0.00 | -0.05(h) |
| [N/Fe] (dex) | 0.00 | 0.37(g) | 0.00 | 0.00 | 0.00 | 0.00 |
| [O/Fe] (dex) | 0.50(f) | –0.13(g) | 0.47(h) | –0.17(h) | 0.00 | 0.14 (h) |
| [Ca/Fe] (dex) | 0.12 | 0.03 | –0.03 | 0.04 | 0.00 | 0.03 |
| 12 C/13 C | 6.30(i) | 20.0(i) | 89.9 | 89.9 | 89.9 | 89.9 |
References. The data come from Jofré et al. (2018) or are assumed solar-scaled abundances except the following: (a) Hekker & Meléndez (2007), (b) Jofré et al. (2015), (c) Valenti & Fischer (2005), (d) Bruntt et al. (2010), (e) Benz & Mayor (1984), (f) Ramírez & Allende Prieto (2011), (g)Gratton & Sneden (1990), (h)Luck (2017), and (i) Smith et al. (2013).
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