Table 2.
Class II inner disk fractions from 2MASS color-color diagrams.
| FOV20 pc |
FOV2 pc |
|||||||
|---|---|---|---|---|---|---|---|---|
| Name | NJHK/Nmemb |
 |
NJHK/Nmemb (p0) |
 (p0) |
NJHK/Nmemb |
 |
NJHK/Nmemb (p0) |
 (p0) |
| NGC 1333 | 91/95 | 8.8 |
85/88 (0.2) | 9.4 (0.2) |
26/28 | 19.2 |
26/28 (0.2) | 19.2 (0.2) |
| IC 348 | 205/209 | 2.4 |
148/151 (0.6) | 0.7 (0.6) |
95/97 | 2.1 |
81/83 (0.6) | 2.5 (0.6) |
| NGC 1893 | 52/59 | 5.8 |
52/59 (0.5) ( † ) | 5.8 (0.5) ( † ) |
7/8 | 0.0 |
7/8 (0.5) ( † ) | 0.0 (0.5) ( † ) |
| λ Ori | 366/377 | 4.4 |
31/31 (0.9) | 12.9 (0.9) |
61/63 | 3.3 |
16/16 (0.9) | 12.5 (0.9) |
| NGC 1960 | 265/273 | 0.0 |
243/250 (0.8) | 0.0 (0.8) |
109/114 | 0.0 |
106/110 (0.8) | 0.0 (0.8) |
| NGC 2169 | 98/102 | 3.1 |
59/62 (0.9) | 3.4 (0.9) |
23/26 | 0.0 |
21/23 (0.9) | 0.0 (0.9) |
| NGC 2244 | 407/418 | 6.6 |
140/147 (0.9) | 7.9 (0.9) |
34/35 | 8.8 |
28/28 (0.9) | 7.1 (0.9) |
| NGC 2264 | 441/452 | 8.4 |
165/166 (0.8) | 13.9 (0.8) |
140/142 | 11.4 |
91/91 (0.8) | 14.3 (0.8) |
| NGC 2353 | 530/545 | 0.2 |
236/243 (0.8) | 0.4 (0.8) |
87/92 | 0.0 |
75/80 (0.8) | 0.0 (0.8) |
| NGC 2362 | 461/485 | 2.4 |
162/170 (0.9) | 2.5 (0.9) |
80/90 | 2.5 |
56/63 (0.9) | 1.8 (0.9) |
| γ Vel | 780/810 | 0.6 |
399/415 (0.5) | 0.8 (0.5) |
94/99 | 1.1 |
74/78 (0.5) | 0.0 (0.5) |
| ASCC 58 | 150/160 | 0.0 |
112/118 (0.5) ( † ) | 0.0 (0.5) ( † ) |
14/16 | 0.0 |
13/15 (0.5) ( † ) | 0.0 (0.5) ( † ) |
| Trumpler 15 | 738/870 | 4.9 |
167/207 (0.8) | 3.6 (0.8) |
70/94 | 2.9 |
34/49 (0.8) | 0.0 (0.8) |
| NGC 6231 | 1477/1726 | 4.1 |
616/714 (0.7) | 4.9 (0.7) |
225/265 | 3.6 |
183/214 (0.7) | 2.7 (0.7) |
| NGC 6531 | 469/696 | 7.5 |
282/404 (0.6) | 8.2 (0.6) |
65/91 | 6.2 |
61/83 (0.6) | 6.6 (0.6) |
| NGC 6611 | 652/809 | 6.1 |
35/45 (0.99) | 5.7 (0.99) |
61/72 | 6.6 |
19/23 (0.99) | 0.0 (0.99) |
| Trumpler 37 | 360/381 | 4.7 |
199/216 (0.4) | 7.0 (0.4) |
47/52 | 8.5 |
38/43 (0.4) | 10.5 (0.4) |
| NGC 7129 | 42/43 | 11.9 |
42/43 (0.5) ( † ) | 11.9 (0.5) ( † ) |
13/14 | 7.7 |
13/14 (0.5) ( † ) | 7.7 (0.5) ( † ) |
| NGC 7160 | 185/190 | 1.1 |
171/176 (0.2) | 1.2 (0.2) |
27/27 | 0.0 |
27/27 (0.2) | 0.0 (0.2) |
Notes. Columns (2), (3), (6) and (7): ratio between the number of members with JHK counterparts and the total number of members, and the inner disk fractions (in %) for each cluster and FOV. Rest of the columns: same values for the stars whose membership probability is above a certain threshold p0 (indicated between parentheses). ( † )p0 values were arbitrarily set to 0.5, given that the KS test already provided a p-value > 0.05 (see Sect. 4.1.1). Listed disk fractions are valid for comparison purposes but should not be taken as absolute values, given the limitations of our study (see text).
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