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Table 2
Observational data.
| Stars in | Distance | Spectral | SpTy | V | K s | F 3.4 | F 12 | F 22 | |||||||||||
| Name | beam | (pc)a | typeb | ref. | (mag)c | (mag)d | (mag)e | (mag)e | (mag)e | ||||||||||
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| GJ 551 | 1 | 1.30 ± 0.01 | M5.5 | 1 | 11.05 | 4.38 ± 0.03 | 4.20 ± 0.09 | 3.83 ± 0.02 | 3.66 ± 0.02f | ||||||||||
| GJ 699 | 1 | 1.83 ± 0.01 | M4.0 | 1 | 9.57 | 4.52 ± 0.02 | 4.39 ± 0.07 | 4.04 ± 0.02 | 3.92 ± 0.03f | ||||||||||
| GJ 406 | 1 | 2.39 ± 0.01 | M6.0 | 2 | 13.53 | 6.08 ± 0.02 | 5.81 ± 0.06 | 5.48 ± 0.02 | 5.31 ± 0.03f | ||||||||||
| GJ 411 | 1 | 2.54 ± 0.01 | M2.0 | 1 | 7.47 | 3.25 ± 0.31 | 3.24 ± 0.14 | 3.05 ± 0.01 | 2.93 ± 0.02f | ||||||||||
| GJ 65 A/B | 2 | 2.68 ± 0.02 | M5.5 / M6.0 | 1 | 12.06 | 5.34 ± 0.02 | 5.05 ± 0.07 | 4.76 ± 0.02 | 4.62 ± 0.03 | ||||||||||
| GJ 729 | 1 | 2.97 ± 0.02 | M3.5 | 1 | 10.44 | 5.37 ± 0.02 | 5.16 ± 0.06 | 4.91 ± 0.01 | 4.72 ± 0.03f | ||||||||||
| GJ 905 | 1 | 3.16 ± 0.01 | M5.5 | 1 | 12.29 | 5.93 ± 0.02 | 5.69 ± 0.06 | 5.39 ± 0.02 | 5.25 ± 0.03f | ||||||||||
| GJ 887 | 1 | 3.28 ± 0.01 | M0.5 | 3 | 7.34 | 3.47 ± 0.20 | 3.24 ± 0.12 | 3.08 ± 0.01 | 3.00 ± 0.02f | ||||||||||
| GJ 447 | 1 | 3.35 ± 0.02 | M4.0 | 1 | 11.16 | 5.65 ± 0.02 | 5.46 ± 0.06 | 5.18 ± 0.01 | 5.03 ± 0.03f | ||||||||||
| GJ 866 A/B/C | 3 | 3.45 ± 0.05 | M5.0 | 1 | 12.30 | 5.54 ± 0.02 | 5.31 ± 0.06 | 5.01 ± 0.02 | 4.88 ± 0.03 | ||||||||||
| GJ 15 A | 1 | 3.57 ± 0.01 | M1.5 | 1 | 8.08 | 4.02 ± 0.02 | 3.85 ± 0.10 | 3.71 ± 0.02 | 3.60 ± 0.02f | ||||||||||
| GJ 15 B | 1 | 3.57 ± 0.01 | M3.5 | 1 | 11.06 | 5.95 ± 0.02 | 5.75 ± 0.05 | 5.46 ± 0.02 | 5.30 ± 0.03f | ||||||||||
| GJ 1111 | 1 | 3.63 ± 0.04 | M6.5 | 1 | 14.90 | 7.26 ± 0.02 | 7.03 ± 0.03 | 6.63 ± 0.02 | 6.47 ± 0.06f | ||||||||||
| GJ 1061 | 1 | 3.68 ± 0.02 | M5.5 | 1 | 13.09 | 6.61 ± 0.02 | 6.37 ± 0.05 | 6.01 ± 0.02 | 5.87 ± 0.03f | ||||||||||
| GJ 54.1 | 1 | 3.72 ± 0.04 | M4.5 | 1 | 12.10 | 6.42 ± 0.02 | 6.17 ± 0.04 | 5.89 ± 0.01 | 5.72 ± 0.04f | ||||||||||
| GJ 273 | 1 | 3.76 ± 0.01 | M3.5 | 1 | 9.85 | 4.86 ± 0.02 | 4.72 ± 0.07 | 4.46 ± 0.02 | 4.33 ± 0.03f | ||||||||||
| SCR 1845-6357 A | 1 | 3.85 ± 0.02 | M8.5 | 2 | 17.40 | 8.51 ± 0.02 | 8.14 ± 0.02 | 7.38 ± 0.02 | 7.08 ± 0.07 | ||||||||||
| SO 0253+1652 | 1 | 3.85 ± 0.01 | M7.0 | 2 | 15.14 | 7.59 ± 0.05 | 7.32 ± 0.03 | 6.90 ± 0.02 | 6.72 ± 0.08 | ||||||||||
| GJ 191 | 1 | 3.91 ± 0.01 | M1.0 | 4 | 8.85 | 5.05 ± 0.02 | 4.95 ± 0.08 | 4.72 ± 0.01 | 4.60 ± 0.03f | ||||||||||
| DEN 1048-3956 | 1 | 4.02 ± 0.02 | M8.5 | 2 | 17.39 | 8.45 ± 0.02 | 8.10 ± 0.02 | 7.46 ± 0.02 | 7.23 ± 0.09 | ||||||||||
| GJ 860 A/B | 2 | 4.03 ± 0.02 | M3.0 / M4.0 | 1 | 9.57 | 4.78 ± 0.03 | 4.69 ± 0.08 | 4.30 ± 0.01 | 4.12 ± 0.03 | ||||||||||
| GJ 234 A/B | 2 | 4.09 ± 0.02 | M4.5 | 1 | 11.12 | 5.49 ± 0.02 | 5.29 ± 0.07 | 4.99 ± 0.01 | 4.84 ± 0.03 | ||||||||||
| GJ 628 | 1 | 4.27 ± 0.03 | M3.0 | 1 | 10.10 | 5.08 ± 0.02 | 4.91 ± 0.07 | 4.67 ± 0.01 | 4.57 ± 0.03f | ||||||||||
| GJ 1 | 1 | 4.34 ± 0.02 | M1.5 | 3 | 8.54 | 4.52 ± 0.02 | 4.36 ± 0.09 | 4.20 ± 0.01 | 4.07 ± 0.02f | ||||||||||
| GJ 473 A/B | 2 | 4.39 ± 0.09 | M5.5 | 1 | 12.49 | 6.04 ± 0.02 | 5.79 ± 0.05 | 5.49 ± 0.01 | 5.35 ± 0.04 | ||||||||||
| GJ 83.1 | 1 | 4.45 ± 0.06 | M4.5 | 1 | 12.31 | 6.65 ± 0.02 | 6.44 ± 0.04 | 6.10 ± 0.01 | 5.96 ± 0.04f | ||||||||||
| GJ 687 | 1 | 4.54 ± 0.02 | M3.0 | 1 | 9.17 | 4.55 ± 0.02 | 4.40 ± 0.09 | 4.18 ± 0.02 | 4.06 ± 0.02f | ||||||||||
| LHS 292 | 1 | 4.54 ± 0.07 | M7.0 | 2 | 15.73 | 7.93 ± 0.03 | 7.71 ± 0.02 | 7.30 ± 0.02 | 7.03 ± 0.09f | ||||||||||
| GJ 1245 A/C | 2 | 4.54 ± 0.02 | M5.5 | 1 | 13.41 | 6.85 ± 0.02 | 6.60 ± 0.07 | 6.24 ± 0.02 | 6.08 ± 0.05 | ||||||||||
| GJ 1245 B | 1 | 4.54 ± 0.02 | M6.0 | 1 | 14.01 | 7.39 ± 0.02 | 7.18 ± 0.07 | 6.85 ± 0.02 | 6.77 ± 0.09f | ||||||||||
| GJ 674 | 1 | 4.54 ± 0.03 | M2.5 | 3 | 9.37 | 4.86 ± 0.02 | 4.71 ± 0.08 | 4.50 ± 0.02 | 4.34 ± 0.03f | ||||||||||
| GJ 876 A | 1 | 4.66 ± 0.01 | M3.5 | 1 | 10.18 | 5.01 ± 0.02 | 4.84 ± 0.08 | 4.64 ± 0.01 | 4.54 ± 0.03f | ||||||||||
| GJ 1002 | 1 | 4.69 ± 0.08 | M5.5 | 1 | 13.77 | 7.44 ± 0.02 | 7.18 ± 0.03 | 6.86 ± 0.02 | 6.77 ± 0.08f | ||||||||||
| LHS 288 | 1 | 4.77 ± 0.06 | M5.5 | 2 | 13.92 | 7.73 ± 0.03 | 7.50 ± 0.03 | 7.09 ± 0.02 | 6.75 ± 0.07f | ||||||||||
| GJ 412 A | 1 | 4.86 ± 0.02 | M1.0 | 1 | 8.77 | 4.77 ± 0.02 | 4.64 ± 0.09 | 4.46 ± 0.01 | 4.36 ± 0.02f | ||||||||||
| GJ 412 B | 1 | 4.86 ± 0.02 | M5.5 | 1 | 14.44 | 7.84 ± 0.03 | 7.61 ± 0.02 | 7.22 ± 0.02 | 7.12 ± 0.09f | ||||||||||
| GJ 388 | 1 | 4.89 ± 0.07 | M4.0 | 4 | 9.29 | 4.59 ± 0.02 | 4.42 ± 0.09 | 4.27 ± 0.02 | 4.15 ± 0.03f | ||||||||||
| GJ 832 | 1 | 4.95 ± 0.02 | M1.5 | 3 | 8.66 | 4.50 ± 0.02 | 4.29 ± 0.08 | 4.16 ± 0.01 | 4.05 ± 0.02f | ||||||||||
| LP 944-020 | 1 | 4.97 ± 0.10 | M9.0 | 2 | 18.69 | 9.55 ± 0.02 | 9.13 ± 0.02 | 8.27 ± 0.02 | 8.00 ± 0.11f | ||||||||||
| GJ 166 C | 1 | 4.98 ± 0.01 | M4.5 | 3 | 11.24 | 5.96 ± 0.03 | 5.81 ± 0.05 | 5.48 ± 0.02 | 5.34 ± 0.04f | ||||||||||
| GJ 873 | 1 | 5.05 ± 0.02 | M3.5 | 1 | 10.22 | 5.30 ± 0.02 | 5.24 ± 0.06 | 4.89 ± 0.02 | 4.75 ± 0.03 | ||||||||||
| GJ 682 | 1 | 5.05 ± 0.05 | M3.5 | 3 | 10.95 | 5.61 ± 0.02 | 5.35 ± 0.07 | 5.20 ± 0.02 | 5.13 ± 0.04f | ||||||||||
| GJ 1116 A/B | 2 | 5.23 ± 0.07 | M5.5 | 1 | 13.65 | 6.89 ± 0.02 | 6.64 ± 0.04 | 6.28 ± 0.02 | 6.21 ± 0.08 | ||||||||||
| G 099-049 | 1 | 5.24 ± 0.05 | M3.5 | 1 | 11.31 | 6.04 ± 0.02 | 5.94 ± 0.05 | 5.61 ± 0.02 | 5.47 ± 0.04 | ||||||||||
| LHS 1723 | 1 | 5.32 ± 0.04 | M4.0 | 3 | 12.22 | 6.74 ± 0.02 | 6.53 ± 0.05 | 6.23 ± 0.02 | 6.13 ± 0.05 | ||||||||||
| GJ 445 | 1 | 5.34 ± 0.05 | M3.5 | 1 | 10.79 | 5.95 ± 0.03 | 5.75 ± 0.06 | 5.51 ± 0.02 | 5.38 ± 0.03 | ||||||||||
| GJ 526 | 1 | 5.41 ± 0.02 | M1.5 | 1 | 8.46 | 4.42 ± 0.02 | 4.37 ± 0.10 | 4.19 ± 0.01 | 4.10 ± 0.02 | ||||||||||
| GJ 169.1 A | 1 | 5.54 ± 0.02 | M4.5 | 5 | 11.04 | 5.72 ± 0.02 | 5.54 ± 0.06 | 5.32 ± 0.01 | 5.20 ± 0.03 | ||||||||||
| GJ 251 | 1 | 5.61 ± 0.05 | M3.0 | 1 | 10.02 | 5.28 ± 0.02 | 5.16 ± 0.07 | 4.92 ± 0.02 | 4.78 ± 0.03 | ||||||||||
| 2MA 1835+3259 | 1 | 5.67 ± 0.02 | M8.5 | 6 | 18.27 | 9.17 ± 0.02 | 8.80 ± 0.02 | 8.16 ± 0.02 | 7.89 ± 0.13 | ||||||||||
| GJ 205 | 1 | 5.68 ± 0.03 | M1.5 | 1 | 7.95 | 4.04 ± 0.26 | 3.74 ± 0.12 | 3.70 ± 0.02 | 3.63 ± 0.02 | ||||||||||
| LP 816-060 | 1 | 5.71 ± 0.11 | M4.0 | 7 | 11.50 | 6.20 ± 0.02 | 6.02 ± 0.05 | 5.77 ± 0.02 | 5.63 ± 0.04 | ||||||||||
| GJ 229 A | 1 | 5.75 ± 0.03 | M1.0 | 1 | 8.14 | 4.17 ± 0.23 | 4.06 ± 0.13 | 3.97 ± 0.02 | 3.82 ± 0.04 | ||||||||||
| GJ 213 | 1 | 5.83 ± 0.03 | M4.0 | 1 | 11.57 | 6.39 ± 0.02 | 6.23 ± 0.05 | 5.90 ± 0.02 | 5.68 ± 0.04 | ||||||||||
| GJ 693 | 1 | 5.84 ± 0.08 | M2.0 | 3 | 10.76 | 6.02 ± 0.02 | 5.92 ± 0.06 | 5.60 ± 0.02 | 5.48 ± 0.04 | ||||||||||
| GJ 752 A | 1 | 5.85 ± 0.02 | M3.0 | 1 | 9.10 | 4.67 ± 0.02 | 4.47 ± 0.08 | 4.38 ± 0.01 | 4.27 ± 0.03 | ||||||||||
| GJ 752 B | 1 | 5.85 ± 0.02 | M8.0 | 1 | 17.45 | 8.77 ± 0.02 | 8.47 ± 0.02 | 8.08 ± 0.02 | N/A | ||||||||||
| GJ 570 B/C | 2 | 5.86 ± 0.02 | M1.0 | 1 | 8.09 | 3.80 ± 0.23 | 4.06 ± 0.06 | 3.74 ± 0.02 | 3.62 ± 0.03 | ||||||||||
| GJ 754 | 1 | 5.91 ± 0.05 | M4.5 | 3 | 12.23 | 6.85 ± 0.03 | 6.65 ± 0.03 | 6.36 ± 0.02 | 6.20 ± 0.06 | ||||||||||
| GJ 588 | 1 | 5.93 ± 0.04 | M2.5 | 3 | 9.31 | 4.76 ± 0.02 | 4.70 ± 0.07 | 4.46 ± 0.01 | 4.36 ± 0.03 | ||||||||||
| GJ 1005 A/B | 2 | 5.94 ± 0.03 | M4.0 | 1 | 11.49 | 6.39 ± 0.02 | 6.17 ± 0.04 | 5.91 ± 0.02 | 5.81 ± 0.04 | ||||||||||
| GJ 908 | 1 | 5.95 ± 0.04 | M1.0 | 1 | 8.98 | 5.04 ± 0.02 | 5.02 ± 0.07 | 4.76 ± 0.02 | 4.66 ± 0.03 | ||||||||||
| GJ 285 | 1 | 5.98 ± 0.07 | M4.0 | 1 | 11.19 | 5.70 ± 0.02 | 5.51 ± 0.06 | 5.29 ± 0.01 | 5.13 ± 0.03 | ||||||||||
| GJ 268 A/B | 2 | 6.12 ± 0.07 | M4.5 | 1 | 11.48 | 5.85 ± 0.02 | 5.69 ± 0.06 | 5.38 ± 0.02 | 5.20 ± 0.03 | ||||||||||
| GJ 784 | 1 | 6.20 ± 0.04 | K7.0 | 3 | 7.95 | 4.28 ± 0.02 | 4.15 ± 0.10 | 4.05 ± 0.02 | 3.98 ± 0.02 | ||||||||||
| GJ 555 | 1 | 6.22 ± 0.08 | M3.5 | 1 | 11.32 | 5.94 ± 0.03 | 5.79 ± 0.06 | 5.54 ± 0.02 | 5.41 ± 0.03 | ||||||||||
| GJ 896 A/B | 2 | 6.25 ± 0.06 | M3.5 / M4.5 | 1 | 10.10 | 4.94 ± 0.03 | 4.76 ± 0.08 | 4.64 ± 0.02 | 4.59 ± 0.03 | ||||||||||
| GJ 581 | 1 | 6.34 ± 0.07 | M2.5 | 1 | 10.57 | 5.84 ± 0.02 | 5.69 ± 0.06 | 5.48 ± 0.01 | 5.33 ± 0.03 | ||||||||||
| LHS 2090 | 1 | 6.37 ± 0.11 | M6.0 | 2 | 16.10 | 8.44 ± 0.02 | 8.23 ± 0.03 | 7.80 ± 0.02 | 7.96 ± 0.22 | ||||||||||
| LHS 337 | 1 | 6.38 ± 0.08 | M4.5 | 3 | 12.75 | 7.39 ± 0.02 | 7.24 ± 0.03 | 6.86 ± 0.02 | 6.72 ± 0.05 | ||||||||||
| GJ 661 A/B | 2 | 6.40 ± 0.05 | M3.0 | 1 | 9.37 | 4.83 ± 0.02 | 4.71 ± 0.08 | 4.46 ± 0.02 | 4.34 ± 0.02 | ||||||||||
| G 180-060 | 1 | 6.41 ± 0.16 | M5.0 | 3 | 14.76 | 8.51 ± 0.02 | 8.29 ± 0.02 | 7.95 ± 0.02 | 7.90 ± 0.13 | ||||||||||
| GJ 644 A/B/D | 3 | 6.45 ± 0.02 | M2.5 | 1 | 9.03 | 4.40 ± 0.04 | 4.22 ± 0.09 | 4.04 ± 0.02 | 3.90 ± 0.03 | ||||||||||
| GJ 644 C | 1 | 6.45 ± 0.02 | M7.0 | 1 | 16.78 | 8.82 ± 0.02 | 8.59 ± 0.02 | 8.13 ± 0.02 | 7.86 ± 0.18f | ||||||||||
| GJ 643 | 1 | 6.45 ± 0.02 | M3.5 | 1 | 11.80 | 6.72 ± 0.02 | 6.57 ± 0.03 | 6.29 ± 0.02 | 6.12 ± 0.05 | ||||||||||
| GJ 625 | 1 | 6.53 ± 0.04 | M1.5 | 1 | 10.10 | 5.83 ± 0.02 | 5.68 ± 0.06 | 5.46 ± 0.02 | 5.33 ± 0.02 | ||||||||||
| GJ 1128 | 1 | 6.53 ± 0.10 | M4.5 | 1 | 12.74 | 7.04 ± 0.02 | 6.80 ± 0.03 | 6.51 ± 0.01 | 6.40 ± 0.03 | ||||||||||
| GJ 1156 | 1 | 6.54 ± 0.13 | M5.0 | 1 | 13.80 | 7.57 ± 0.03 | 7.33 ± 0.03 | 6.99 ± 0.02 | 6.91 ± 0.08 | ||||||||||
| LHS 3003 | 1 | 6.56 ± 0.09 | M7.0 | 1 | 17.05 | 8.93 ± 0.03 | 8.69 ± 0.02 | 8.27 ± 0.02 | 8.12 ± 0.27f | ||||||||||
| GJ 408 | 1 | 6.70 ± 0.07 | M2.5 | 3 | 10.02 | 5.50 ± 10.00 | 5.38 ± 0.06 | 5.19 ± 0.01 | 5.09 ± 0.03 | ||||||||||
| GJ 829 A/B | 2 | 6.71 ± 0.08 | M3.5 | 1 | 10.30 | 5.45 ± 0.02 | 5.30 ± 0.07 | 5.06 ± 0.01 | 4.90 ± 0.03 | ||||||||||
| G 041-014 A/B/C | 3 | 6.77 ± 0.09 | M3.5 | 3 | 11.46 | 5.69 ± 0.02 | 5.49 ± 0.06 | 5.25 ± 0.02 | 5.08 ± 0.03 | ||||||||||
| GJ 402 | 1 | 6.80 ± 0.14 | M4.0 | 1 | 11.65 | 6.37 ± 0.02 | 6.26 ± 0.05 | 5.98 ± 0.02 | 5.86 ± 0.04 | ||||||||||
| GJ 880 | 1 | 6.83 ± 0.04 | M1.5 | 1 | 8.65 | 4.52 ± 0.02 | 4.43 ± 0.08 | 4.33 ± 0.01 | 4.22 ± 0.02 | ||||||||||
| GJ 299 | 1 | 6.84 ± 0.14 | M4.0 | 1 | 12.82 | 7.66 ± 0.03 | 7.44 ± 0.03 | 7.12 ± 0.02 | 7.01 ± 0.09 | ||||||||||
Notes.
(a)
Distances calculated from RECONS parallaxes (Henry et al. 2006).
(b)
Spectral types from the literature. When only one spectral type is given for a binary/multiple system, this represents the spectral type of the whole system and the individual spectral types are unknown. The sources of the spectral type are given in the next column and are: 1) Henry et al. (2002), 2) Henry et al. (2004), 3) Hawley et al. (1996), 4) Keenan & McNeil (1989), 5) Gray et al. (2003), 6) Reid et al. (2003), 7) Gray et al. (2006).
(c)
V magnitudes taken from the RECONS database; where more than one star is in the WISE/2MASS beam, the fluxes are added.
(d)
Ks magnitudes and errors are taken from the 2MASS database (Skrutskie et al. 2006); where more than one star is in the WISE beam, the fluxes of all stars in the beam are added.
(e)
WISE bands w1 centered at 3.4 μm, w3 centered at 12 μm, and w4 centered at 22 μm (Wright et al. 2010).
(f)
Stars with 24 μm Spitzer flux measurements from Gautier et al. (2007).
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