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Home All issues Volume 513 (April 2010) A&A, 513 (2010) A74 Full HTML
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Table 1:

Summary of RSG candidates and their propertiesa.

ID 		Co-ordinates 2MASS GLIMPSE Spitzerc MSX Offset
  RA Dec J H $K_{{\rm S}}$ Q 4.5 $\mu$m 5.8 $\mu$m 8.0 $\mu$m A C D E  
S1 18 34 58.40 -07 14 24.8 9.92 7.80 6.67 0.10 - 5.54 5.32 5.17 4.48 4.29 - $3\hbox{$.\!\!^{\prime\prime}$ }2$
S2 18 34 55.12 -07 15 10.8 10.86 8.45 7.32 0.38 6.73 6.37 6.31 6.07 5.11 5.05 - $2\hbox{$.\!\!^{\prime\prime}$ }1$
S3 18 34 50.00 -07 14 26.2 9.55 7.19 6.00 0.22 - 4.84 4.68 4.69 3.57 3.42 3.32 $2\hbox{$.\!\!^{\prime\prime}$ }8$
S4 18 34 51.02 -07 14 00.5 10.73 7.68 6.14 0.29 - 4.65 4.50 4.45 3.43 3.35 3.02 $0\hbox{$.\!\!^{\prime\prime}$ }5$
S5 18 34 51.33 -07 13 16.3 10.04 7.53 6.26 0.23 none within $10\hbox{$^{\prime\prime}$ }$ 5.00 4.01 3.87 - $1\hbox{$.\!\!^{\prime\prime}$ }5$
S6 18 34 41.55 -07 11 38.8 10.26 7.73 6.43 0.18 - 5.30 5.19 5.14 4.49 - - $2\hbox{$.\!\!^{\prime\prime}$ }7$
S7 18 34 43.56 -07 13 29.7 10.46 8.22 7.06 0.13 - 5.94 5.88 none within $10\hbox{$^{\prime\prime}$ }$
S8 18 34 44.51 -07 14 15.3 10.42:d 8.03 6.62 -0.15d: - 4.75 4.63 4.34 3.56 3.18 2.86 $0\hbox{$.\!\!^{\prime\prime}$ }7$
S9 18 34 45.81 -07 18 36.2 9.83 7.63 6.49 0.14 - 4.99 4.83 4.96 4.48 - - $1\hbox{$.\!\!^{\prime\prime}$ }7$
S10 18 34 26.81 -07 15 27.9 10.98 8.32 7.00 0.29 - 5.78 5.61 5.22 4.12 - - $0\hbox{$.\!\!^{\prime\prime}$ }9$
S11 18 35 00.32 -07 07 37.4 9.61 7.47 6.34 0.11 - 5.35 5.12 4.73 3.69 3.59 2.77 $0\hbox{$.\!\!^{\prime\prime}$ }3$
S12 18 35 16.88 -07 13 26.9 9.87 7.73 6.45 -0.15 - 4.66 4.45 4.54 3.48 3.31 3.39 $0\hbox{$.\!\!^{\prime\prime}$ }5$
S13 18 35 10.89 -07 15 17.8 12.14 9.09 7.45 0.11 none within $7\hbox{$^{\prime\prime}$ }$ 4.16 3.08 2.81 2.26 $1\hbox{$.\!\!^{\prime\prime}$ }0$
S14 18 34 42.94 -07 13 12.2 8.60 6.87 6.10 0.35 - 5.53 5.50 5.23 4.69 5.12 1.21 $>6\hbox{$^{\prime\prime}$ }$
S101 18 34 58.36 -07 14 15.1 9.80 7.96 7.19 0.45 - 6.61 6.57 5.17 4.48 4.20 - $>6\hbox{$^{\prime\prime}$ }$
S102 18 34 56.77 -07 11 44.9 10.36 8.36 7.52 0.49 - 6.83 6.88 7.42 - - - $>9\hbox{$^{\prime\prime}$ }$
S103 18 34 43.92 -07 14 47.0 9.76 8.07 7.34 0.38 6.97 6.79 6.73 none within $10\hbox{$^{\prime\prime}$ }$
S104 18 35 02.42 -07 09 33.4 10.26 8.40 7.58 0.38 7.22 6.96 6.89 6.53 - - - $1\hbox{$.\!\!^{\prime\prime}$ }4$
S105 18 35 07.59 -07 18 47.4 10.33 8.36 7.59 0.58 7.13 6.89 6.95 5.06 4.26 5.30 - $5\hbox{$.\!\!^{\prime\prime}$ }9$
S106 18 35 06.67 -07 18 55.2 10.15 8.24 7.41 0.42 7.09 6.78 6.82 none within $10\hbox{$^{\prime\prime}$ }$
S107 18 34 27.37 -07 16 19.1 9.74 7.94 7.10 0.28 6.86 6.53 6.53 5.87 5.34 - - $3\hbox{$.\!\!^{\prime\prime}$ }1$
S108 18 34 28.66 -07 09 57.4 9.94 8.02 7.17 0.15 6.88 6.51 6.52 6.54 - - - $1\hbox{$.\!\!^{\prime\prime}$ }3$
S109 18 34 50.86 -07 18 11.9 10.45 8.61 7.76 0.31 7.43 7.13 7.11 6.08 - - - $5\hbox{$.\!\!^{\prime\prime}$ }1$

Notes. Top panel: spectroscopically confirmed RSGs and photometric candidates without spectroscopic observations. Bottom panel: other objects whose photometric properties are indicative of luminous red stars, but are likely to be foreground to the cluster. The last column gives the offset between the star location and the nearest MSX source b.
(a) Co-ordinates and near-IR magnitudes are from 2MASS, with mid-IR (${\sim}4$-25 $\mu$m) magnitudes from the Galactic plane surveys of GLIMPSE/Spitzer (Benjamin et al. 2003) and the Midcourse Source Experiment (MSX) (Egan et al. 2001).
(b) The nominal positions of MSX sources have $1\hbox{$.\!\!^{\prime\prime}$ }5$ uncertainties. Offsets much larger than  $3\hbox{$^{\prime\prime}$ }$ are then likely to indicate random superpositions.
(c) None of the candidate cluster members is detected by Spitzer at 3.6 $\mu$m.
(d) The J magnitude for S8 has quality flag E, indicating a poor fit of the PSF.


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