EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 499 / No 2 (May IV 2009) A&A, 499 2 (2009) 541-555 Full HTML
Free Access
 

 

Table 5:

Estimates of the stellar parameters for the IC 2391 members and candidates of IC 2391 discussed in this work. The objects with identification number (ID) from 1 to 29 are the new candidates selected in this work (Sect. 3); three of these candidates show IR excess emission at 24 $\mu $m and are marked by an asterisk. The objects with ID from 30 to 37 are the additional 8 cluster members and candidates showing IR excess emission discussed in Sect. 6.
ID Designation AV $T_{\rm eff} ^{\bullet}$ $L_\star$ $R_\star$ Mass$^\dag $ Age$^\dag $
    (mag) (K) ($L _\odot$) ($R_\odot$) ($M_{\odot }$) (Myr)
1 WFI J08403964-5250429* 1.63 $\pm$ 0.13 3000 0.003 $\pm$ 0.001 0.19 $\pm$ 0.04 0.08 $\pm$ 0.02 56 $\pm$ 20
2 WFI J08404512-5248521 0.01 $\pm$ 0.06 3400 0.038 $\pm$ 0.017 0.56 $\pm$ 0.13 0.25 $\pm$ 0.05 14 $\pm$ 5
3 WFI J08404578-5301052 0.97 $\pm$ 0.07 4200 0.164 $\pm$ 0.075 0.76 $\pm$ 0.18 0.75 $\pm$ 0.10 45 $\pm$ 20
4 WFI J08405518-5257227 1.80 $\pm$ 0.06 4200 0.256 $\pm$ 0.118 0.86 $\pm$ 0.22 0.85 $\pm$ 0.10 32 $\pm$ 10
5 WFI J08410806-5300053 0.19 $\pm$ 0.10 3100 0.015 $\pm$ 0.007 0.43 $\pm$ 0.10 0.07 $\pm$ 0.02 6 $\pm$ 3
6 WFI J08410814-5255027 1.96 $\pm$ 0.07 4200 0.261 $\pm$ 0.120 0.97 $\pm$ 0.22 0.90 $\pm$ 0.10 25 $\pm$ 8
7 WFI J08410886-5248387* 0.50 $\pm$ 0.08 3000 0.012 $\pm$ 0.006 0.42 $\pm$ 0.09 0.07 $\pm$ 0.02 6 $\pm$ 3
8 WFI J08410937-5302136 0.26 $\pm$ 0.07 3100 0.024 $\pm$ 0.011 0.54 $\pm$ 0.12 0.13 $\pm$ 0.06 7 $\pm$ 2
9 WFI J08411865-5258549 0.05 $\pm$ 0.08 3100 0.007 $\pm$ 0.003 0.28 $\pm$ 0.06 0.11 $\pm$ 0.04 32 $\pm$ 10
10 WFI J08412229-5304471 0.03 $\pm$ 0.07 3100 0.031 $\pm$ 0.014 0.61 $\pm$ 0.14 0.11 $\pm$ 0.04 4 $\pm$ 2
11 WFI J08413933-5252565 0.42 $\pm$ 0.06 4000 0.093 $\pm$ 0.043 0.64 $\pm$ 0.15 0.62 $\pm$ 0.08 91 $\pm$ 40
12 WFI J08415360-5257558 0.21 $\pm$ 0.07 3200 0.023 $\pm$ 0.011 0.50 $\pm$ 0.12 0.20 $\pm$ 0.04 18 $\pm$ 6
13 WFI J08422460-5259575 0.07 $\pm$ 0.06 4800 0.288 $\pm$ 0.133 0.78 $\pm$ 0.18 0.85 $\pm$ 0.10 74 $\pm$ 30
14 WFI J08423071-5257348 0.05 $\pm$ 0.06 4000 0.102 $\pm$ 0.047 0.67 $\pm$ 0.15 0.70 $\pm$ 0.10 45 $\pm$ 20
15 WFI J08424731-5309235 1.74 $\pm$ 0.10 2900 0.008 $\pm$ 0.004 0.35 $\pm$ 0.08 0.05 $\pm$ 0.02 6 $\pm$ 3
16 WFI J08424850-5303187 0.03 $\pm$ 0.07 3000 0.011 $\pm$ 0.005 0.38 $\pm$ 0.09 0.08 $\pm$ 0.02 9 $\pm$ 4
17 WFI J08425873-5305546 0.22 $\pm$ 0.06 3300 0.049 $\pm$ 0.023 0.68 $\pm$ 0.16 0.25 $\pm$ 0.05 9 $\pm$ 4
18 WFI J08425988-5305074 1.74 $\pm$ 0.10 3000 0.005 $\pm$ 0.002 0.26 $\pm$ 0.06 0.07 $\pm$ 0.02 18 $\pm$ 6
19 WFI J08430294-5302259 0.63 $\pm$ 0.06 4000 0.252 $\pm$ 0.116 1.05 $\pm$ 0.24 0.90 $\pm$ 0.10 18 $\pm$ 6
20 WFI J08431228-5251411 3.19 $\pm$ 0.19 2900 0.002 $\pm$ 0.001 0.18 $\pm$ 0.04 0.07 $\pm$ 0.02 64 $\pm$ 20
21 WFI J08431860-5306241 0.18 $\pm$ 0.06 4200 0.253 $\pm$ 0.117 0.95 $\pm$ 0.22 0.85 $\pm$ 0.10 32 $\pm$ 10
22 WFI J08433366-5259549 3.51 $\pm$ 0.16 3000 0.003 $\pm$ 0.001 0.20 $\pm$ 0.05 0.09 $\pm$ 0.02 64 $\pm$ 20
23 WFI J08433843-5246379 2.53 $\pm$ 0.06 3900 0.076 $\pm$ 0.035 0.61 $\pm$ 0.14 0.60 $\pm$ 0.08 90 $\pm$ 40
24 WFI J08433939-5307563 0.02 $\pm$ 0.07 3000 0.016 $\pm$ 0.007 0.47 $\pm$ 0.11 0.08 $\pm$ 0.02 6 $\pm$ 3
25 WFI J08433945-5248576 0.12 $\pm$ 0.08 3300 0.006 $\pm$ 0.003 0.23 $\pm$ 0.05 0.15 $\pm$ 0.04 80 $\pm$ 40
26 WFI J08434640-5257036 0.12 $\pm$ 0.10 4200 0.180 $\pm$ 0.083 0.80 $\pm$ 0.19 0.75 $\pm$ 0.08 50 $\pm$ 20
27 WFI J08434751-5250136 2.00 $\pm$ 0.06 4000 0.110 $\pm$ 0.051 0.69 $\pm$ 0.16 0.70 $\pm$ 0.08 45 $\pm$ 20
28 WFI J08434909-5307269 0.01 $\pm$ 0.08 3200 0.007 $\pm$ 0.003 0.26 $\pm$ 0.06 0.11 $\pm$ 0.03 32 $\pm$ 10
29 WFI J08440199-5310356 0.41 $\pm$ 0.07 4000 0.083 $\pm$ 0.038 0.60 $\pm$ 0.14 0.62 $\pm$ 0.08 80 $\pm$ 40
30 WFI J08404683-5302487* 0.16 $\pm$ 0.17 4200 2.128 $\pm$ 0.001 2.77 $\pm$ 0.05 1.40 $\pm$ 0.20 5 $\pm$ 2
31 WFI J08410019-5249088* 0.77$^\ddag $ 3800$^\ddag $ 0.185$^\ddag $ 0.97$^\ddag $ 0.75$^\ddag $ 20$^\ddag $
32 WFI J08412176-5247289* 0.22 $\pm$ 0.15 4300 1.087 $\pm$ 0.001 1.80 $\pm$ 0.01 1.40 $\pm$ 0.20 6 $\pm$ 3
33 WFI J08412550-5300154* 0.13$^\ddag $ 4300$^\ddag $ 0.700$^\ddag $ 2.48$^\ddag $ 1.20$^\ddag $ 10$^\ddag $
34 WFI J08413601-5309274* 0.17 $\pm$ 0.07 3000 0.012 $\pm$ 0.006 0.39 $\pm$ 0.09 0.07 $\pm$ 0.02 7 $\pm$ 3
35 WFI J08413888-5259492* 0.44$^\ddag $ 4100$^\ddag $ 0.101$^\ddag $ 1.13$^\ddag $ 0.65$^\ddag $ 80$^\ddag $
36 WFI J08414904-5255192* 0.05$^\ddag $ 3700$^\ddag $ 0.127$^\ddag $ 0.95$^\ddag $ 0.65$^\ddag $ 16$^\ddag $
37 WFI J08415780-5252140* 0.24 $\pm$ 0.2 4000 0.203 $\pm$ 0.069 0.74 $\pm$ 0.16 0.85 $\pm$ 0.10 25 $\pm$ 8
$^{\bullet}$ The uncertainty on $T_{\rm eff}$ is assumed to be 250 K on average (see Sect. 3.1).
$^\dag $ From the evolutionary models by Baraffe et al. (1998) and Chabrier et al. (2000).
$^\ddag $ From the Robitaille et al. (2006) models for young stellar objects (see Sect. 6.1.1).
* Object showing IR excess emission at 24 $\mu $m.

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.