Open Access
Table 2
Adopted grid for the computation of the χ2 for the full CMD fit.
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
| # | I 1 | I 2 | (V − I)1 | (V − I)2 | w | N obs | Comment |
|
|
|||||||
| 1 | 28.40 | 28.80 | –0.25 | 0.55 | 0.3 | 781 | at 50% completeness edge; σI = 0.25−0.3, σV = 0.15−0.2 |
| 2 | 28.40 | 28.80 | 0.55 | 0.90 | 0.4 | 2027 | partly below 50% line; σI = 0.25−0.3, σV = 0.2−0.25 |
| 3 | 28.40 | 28.80 | 0.90 | 1.35 | 0.2 | 1508 | partly below 50% line; σI = 0.25−0.3, σV = 0.2−0.25 |
| 4 | 28.05 | 28.40 | 0.15 | 0.70 | 0.8 | 1145 | σI = 0.2−0.25, σV = 0.2 |
| 5 | 28.05 | 28.40 | 0.70 | 0.90 | 0.8 | 2111 | σI = 0.2−0.25, σV = 0.2 |
| 6 | 28.05 | 28.40 | 0.90 | 1.10 | 0.6 | 2894 | close to 50% line; σI = 0.2−0.25, σV = 0.25 |
| 7 | 28.05 | 28.40 | 1.10 | 1.35 | 0.5 | 2854 | close to 50% line; σI = 0.2−0.25, σV = 0.25 |
| 8 | 28.05 | 28.40 | 1.35 | 1.65 | 0.4 | 639 | partly below 50% line; σI = 0.2−0.25, σV = 0.3 |
| 9 | 27.70 | 28.05 | 0.30 | 0.70 | 0.4 | 418 | some scattered/foreground stars? |
| 10 | 27.70 | 28.05 | 0.70 | 0.90 | 1.0 | 2212 | 2σ off in color from the RC |
| 11 | 27.70 | 28.05 | 0.90 | 1.01 | 1.0 | 2750 | RED CLUMP MAXIMUM σI = 0.18, σ(V − I) = 0.2 |
| 12 | 27.70 | 28.05 | 1.01 | 1.24 | 1.0 | 7351 | RED CLUMP MAXIMUM σI = 0.18, σ(V − I) = 0.2 |
| 13 | 27.70 | 28.05 | 1.24 | 1.36 | 1.0 | 2775 | RED CLUMP MAXIMUM σI = 0.18, σ(V − I) = 0.2 |
| 14 | 27.70 | 28.05 | 1.36 | 1.59 | 1.0 | 2399 | 2σ in color off from the RC |
| 15 | 27.70 | 28.05 | 1.59 | 1.90 | 0.4 | 444 | at the 50% limit |
| 16 | 27.40 | 27.70 | 0.40 | 0.93 | 0.8 | 633 | σI = 0.15, σV = 0.1 |
| 17 | 27.40 | 27.70 | 0.93 | 1.13 | 1.0 | 2039 | 1−3σ above the RED CLUMP |
| 18 | 27.40 | 27.70 | 1.13 | 1.28 | 1.0 | 2077 | 1−3σ above the RED CLUMP |
| 19 | 27.40 | 27.70 | 1.28 | 1.48 | 1.0 | 1624 | 1−3σ above the RED CLUMP |
| 20 | 27.40 | 27.70 | 1.48 | 2.00 | 0.8 | 631 | σI = 0.15, σV = 0.2 (lower weight due to larger V error) |
| 21 | 27.20 | 27.40 | 0.55 | 1.02 | 0.9 | 299 | |
| 22 | 27.20 | 27.40 | 1.02 | 1.18 | 1.0 | 627 | |
| 23 | 27.20 | 27.40 | 1.18 | 1.33 | 1.0 | 747 | σI = 0.1, σV = 0.1 |
| 24 | 27.20 | 27.40 | 1.33 | 1.48 | 1.0 | 414 | |
| 25 | 27.20 | 27.40 | 1.48 | 1.95 | 0.9 | 255 | |
| 26 | 27.00 | 27.20 | 0.60 | 1.10 | 1.0 | 291 | |
| 27 | 27.00 | 27.20 | 1.10 | 1.25 | 1.0 | 489 | |
| 28 | 27.00 | 27.20 | 1.25 | 1.40 | 1.0 | 487 | |
| 29 | 27.00 | 27.20 | 1.40 | 1.92 | 1.0 | 392 | |
| 30 | 26.85 | 27.00 | 0.70 | 1.15 | 0.9 | 258 | |
| 31 | 26.85 | 27.00 | 1.15 | 1.30 | 1.0 | 458 | |
| 32 | 26.85 | 27.00 | 1.30 | 1.45 | 1.0 | 458 | |
| 33 | 26.85 | 27.00 | 1.45 | 1.90 | 0.9 | 262 | |
| 34 | 26.70 | 26.85 | 0.75 | 1.18 | 1.0 | 268 | |
| 35 | 26.70 | 26.85 | 1.18 | 1.26 | 1.0 | 241 | within 1.5σ from AGB bump |
| 36 | 26.70 | 26.85 | 1.26 | 1.35 | 1.0 | 333 | AGB BUMP PEAK σI,σ(V − I) = 0.085 |
| 37 | 26.70 | 26.85 | 1.35 | 1.46 | 1.0 | 336 | within 1.5σ from AGB bump |
| 38 | 26.70 | 26.85 | 1.46 | 1.90 | 1.0 | 327 | |
| 39 | 26.55 | 26.70 | 0.85 | 1.25 | 1.0 | 337 | |
| 40 | 26.55 | 26.70 | 1.25 | 1.43 | 1.0 | 508 | 2σ from AGB bump in magnitude |
| 41 | 26.55 | 26.70 | 1.43 | 1.92 | 1.0 | 367 | |
| 42 | 26.30 | 26.55 | 0.90 | 1.25 | 1.0 | 305 | |
| 43 | 26.30 | 26.55 | 1.25 | 1.40 | 1.0 | 522 | |
| 44 | 26.30 | 26.55 | 1.40 | 1.55 | 1.0 | 433 | |
| 45 | 26.30 | 26.55 | 1.55 | 2.00 | 1.0 | 306 | |
| 46 | 26.00 | 26.30 | 0.95 | 1.30 | 1.0 | 276 | |
| 47 | 26.00 | 26.30 | 1.30 | 1.45 | 1.0 | 432 | |
| 48 | 26.00 | 26.30 | 1.45 | 1.60 | 1.0 | 383 | |
| 49 | 26.00 | 26.30 | 1.60 | 2.10 | 1.0 | 375 | |
| 50 | 25.60 | 26.00 | 1.05 | 1.40 | 1.0 | 309 | |
| 51 | 25.60 | 26.00 | 1.40 | 1.55 | 1.0 | 387 | |
| 52 | 25.60 | 26.00 | 1.55 | 1.80 | 1.0 | 420 | |
| 53 | 25.60 | 26.00 | 1.80 | 2.50 | 1.0 | 314 | |
| 54 | 25.00 | 25.60 | 1.10 | 1.50 | 1.0 | 325 | |
| 55 | 25.00 | 25.60 | 1.50 | 1.75 | 1.0 | 413 | |
| 56 | 25.00 | 25.60 | 1.75 | 2.10 | 1.0 | 359 | |
| 57 | 25.00 | 25.60 | 2.10 | 3.00 | 1.0 | 338 | |
| 58 | 23.80 | 25.00 | 1.25 | 1.85 | 1.0 | 338 | |
| 59 | 23.90 | 25.00 | 1.85 | 2.40 | 1.0 | 406 | |
| 60 | 24.00 | 25.00 | 2.40 | 3.00 | 1.0 | 300 | |
| 61 | 24.25 | 25.60 | 3.00 | 4.50 | 0.8 | 380 | lower weight due to uncertain bolometric corrections for cool RGB stars |
Notes. Magnitudes and colours are given in the observed plane, without extinction correction. Column 6 lists the weight, Col. 7 gives the number of stars in the observed CMD.
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