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Table 6

L-band excess sources in the Arches cluster.

Seq Field dRA dDec J σ J Ha σ H K s σ Ks L ′ σ L Mem
[asec] [asec] [mag] [mag] [mag] [mag] [mag] [mag] [mag] [mag]
1 1 3.10 5.54 18.87 0.06 15.99 0.01 14.18 0.01 11.81 0.01 1
2 1 7.67 3.46 19.68 0.01 17.29 0.01 15.78 0.01 13.56 0.07 1
3 1 3.21 1.17 19.69 0.03 17.56 0.01 15.75 0.02 13.74 0.04 1
4 1 –8.60 9.55 20.75 0.07 17.28 0.00 15.13 0.00 13.04 0.03 1
5 1 5.81 2.25 20.77 0.15 17.10 0.01 14.80 0.01 12.13 0.01 1
6 1 3.44 15.29 20.84 0.11 17.26 0.01 14.65 0.01 12.00 0.03 1
7 1 7.04 –0.79 20.88 0.09 17.52 0.01 15.39 0.01 12.91 0.01 1
8 1 –2.42 8.65 21.23 0.03 18.10 0.01 16.01 0.02 13.49 0.04 1
9 1 7.44 2.19 22.30 0.05 18.37 0.01 16.29 0.01 13.88 0.04 1
10 1 9.08 13.35 23.12 0.06 18.96 0.01 16.18 0.01 13.13 0.05 1
11 1 –14.59 11.22 21.74 0.07 17.94 0.01 15.47 0.01 12.42 0.03 –1
12 1 –12.53 1.40 21.97 0.03 17.96 0.01 15.21 0.00 12.31 0.05 –1
13 3 24.73 13.40 19.90 0.04 17.01 0.01 14.64 0.00 11.79 0.05 1
14 3 31.11 13.68 19.95 0.18 16.83 0.03 14.66 0.00 11.95 0.03 1
15 3 17.14 7.73 20.67 0.05 17.54 0.02 15.44 0.00 13.34 0.05 1
16 3 14.85 –1.37 20.83 0.08 17.50 0.00 15.50 0.00 13.30 0.11 1
17 3 15.43 –3.98 21.27 0.05 17.80 0.00 15.54 0.00 12.94 0.04 1
18 4 –6.63 24.36 20.89 0.05 17.14 0.01 14.44 0.00 11.83 0.00 1
19b 5 24.73 13.40 19.90 0.04 17.01 0.01 14.67 0.00 12.01 0.01 1
20 5 10.36 20.33 20.31 0.02 17.40 0.01 15.30 0.00 12.74 0.01 1
21 5 8.75 16.44 20.60 0.07 17.37 0.01 15.58 0.00 13.31 0.04 1
22c 5 3.44 15.29 20.84 0.11 17.26 0.00 14.67 0.00 12.07 0.01 1
23 5 3.15 19.43 21.17 0.02 17.76 0.01 15.62 0.00 13.40 0.06 1
24d 5 9.08 13.35 23.12 0.06 19.30 0.01 16.52 0.01 13.24 0.09 1

Notes. Positional offsets in right ascension and declination are given in arcseconds, relative to the brightest K-band source in the cluster core (see Fig. 2), RA 17:45:50.42, DEC -28:49:22.3. The cluster centre is located at RA 17:45:50.54, Dec −28:49:19.8. Sources identified as proper motion members have a membership index of 1, while sources without reliable membership information are labelled as −1. Non-members are likely field stars and are not shown here.

(a)

H-band magnitudes are from NACO 2002 photometry in Field 1, and from WFC3 F153M photometry in all other fields.

(b)

Source 19 in Field 5 is identical to source 13 in Field 3, with Ks and L′ measured on Field 5.

(c)

Source 22 in Field 5 is identical to source 6 in Field 1.

(d)

Source 24 in Field 5 is identical to source 10 in Field 1.

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