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Home All issues Volume 526 (February 2011) A&A, 526 (2011) A123 Full HTML
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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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