Table A.1.
JVLA flux densities of the compact sources of the Quintuplet cluster from these observations.
| Source | Near-IR | Positions in X band (J2000.0) c | Flux density (mJy) d | α | Spectral | |||
|---|---|---|---|---|---|---|---|---|
| name | counterpart b | R.A. | Dec. | X Band (2016) | X Band (2018) | C Band (2018) | type f | |
| qG1 (QR6 a) | qF257, LHO096 | 17 46 15.14 ± 0.01 | −28 49 32.46 ± 0.01 | 1.1 ± 0.1 | 0.49 ± 0.05 | 0.45 ± 0.05 | 0.2 ± 0.3 | B1-2 Ia+ |
| qG2 (QR5 a) | qF241, LHO071 | 17 46 15.12 ± 0.01 | −28 49 37.00 ± 0.01 | 0.50 ± 0.05 | 0.52 ± 0.05 | 0.34 ± 0.03 | 0.8 ± 0.3 | WN11h |
| qG3 (QR9 a) | qF362 | 17 46 17.98 ± 0.01 | −28 49 03.20 ± 0.01 | 0.40 ± 0.04 | 0.50 ± 0.05 | 0.17 ± 0.02 | 2.1 ± 0.3 | LBV |
| Pistol Star a | qF134 | 17 46 15.24 ± 0.01 | −28 50 03.37 ± 0.01 | 0.26 ± 0.03 | 0.34 ± 0.03 | 0.10 ± 0.01 | 2.4 ± 0.3 | LBV |
| qG4 | qF240, LHO067 | 17 46 15.94 ± 0.01 | −28 49 37.73 ± 0.01 | 0.23 ± 0.02 | 0.21 ± 0.02 | 0.14 ± 0.02 | 0.8 ± 0.3 | WN10h |
| qG5 | 17 46 14.77 ± 0.01 | −28 50 04.20 ± 0.01 | 0.23 ± 0.02 | 0.19 ± 0.02 | 0.30 ± 0.03 | −0.9 ± 0.3 | < B0 I | |
| qG6 (QR8 a) | qF320, LHO158 | 17 46 14.05 ± 0.01 | −28 49 16.47 ± 0.01 | 0.22 ± 0.02 | 0.22 ± 0.02 | 0.16 ± 0.02 | 0.6 ± 0.3 | WN9h |
| qG7 | 17 46 17.83 ± 0.01 | −28 50 07.16 ± 0.01 | 0.17 ± 0.02 | 0.18 ± 0.02 | 0.20 ± 0.02 | −0.2 ± 0.3 | O7-8 Ia+/WNLh | |
| qG8 | 17 46 15.05 ± 0.01 | −28 50 03.47 ± 0.01 | 0.15 ± 0.02 | 0.23 ± 0.02 | 0.20 ± 0.02 | 0.3 ± 0.3 | WC8-9(d? + OB?) | |
| qG9 | qF211, LHO019 | 17 46 15.87 ± 0.01 | −28 49 45.46 ± 0.01 | 0.12 ± 0.01 | 0.10 ± 0.01 | 0.09 ± 0.01 | 0.2 ± 0.3 | WC9d (+OB) |
| qG10 | qF256, LHO099 | 17 46 16.55 ± 0.01 | −28 49 31.73 ± 0.01 | 0.12 ± 0.01 | 0.09 ± 0.01 | 0.060 ± 0.009 | 0.8 ± 0.4 | WN8-9ha |
| qG11 (QR7 a) | qF231, LHO042 | 17 46 14.71 ± 0.01 | −28 49 40.65 ± 0.01 | 0.10 ± 0.01 | 0.070 ± 0.009 | 0.09 ± 0.01 | −0.5 ± 0.3 | WC9d(+OB) |
| qG12 | 17 46 15.56 ± 0.01 | −28 50 18.05 ± 0.01 | 0.10 ± 0.01 | 0.17 ± 0.02 | 0.07 ± 0.01 | 1.7 ± 0.4 | O7-8 Ia | |
| qG13 (QR4 a) | qF270S, LHO110 | 17 46 15.10 ± 0.01 | −28 49 29.31 ± 0.01 | 0.09 ± 0.01 | 0.08 ± 0.01 | 0.060 ± 0.009 | 0.6 ± 0.4 | B1-2 Ia+/WNLh |
| qG14 | qF307A, LHO146 | 17 46 15.48 ± 0.01 | −28 49 20.17 ± 0.01 | 0.09 ± 0.01 | 0.09 ± 0.01 | 0.07 ± 0.01 | 0.5 ± 0.4 | B1-2 Ia+ |
| qG15 | qF235N, LHO047 | 17 46 15.15 ± 0.02 | −28 49 39.47 ± 0.02 | 0.080 ± 0.009 | 0.08 ± 0.01 | 0.050 ± 0.009 | 0.9 ± 0.4 | WC8(d? +OB?) |
| qG16 | qF235S, LHO034 | 17 46 15.17 ± 0.01 | −28 49 41.61 ± 0.01 | 0.080 ± 0.009 | 0.10 ± 0.01 | 0.09 ± 0.01 | 0.2 ± 0.3 | WC8(d? +OB?) |
| qG17 | qF381 | 17 46 13.45 ± 0.01 | −28 48 59.12 ± 0.01 | 0.074 ± 0.008 | 0.07 ± 0.03 | 0.040 ± 0.008 | 1.1 ± 0.9 | B0-1 Ia+/WNLh |
| qG18 | qF353E | 17 46 11.13 ± 0.01 | −28 49 05.85 ± 0.01 | 0.072 ± 0.008 | 0.07 ± 0.03 | 0.030 ± 0.008 | 2 ± 1 | WN6 |
| qG19 | 17 46 16.50 ± 0.01 | −28 48 44.08 ± 0.01 | 0.060 ± 0.007 | 0.060 ± 0.009 | 0.08 ± 0.01 | −0.6 ± 0.4 | ||
| qG20 | LHO100 | 17 46 15.18 ± 0.02 | −28 49 31.39 ± 0.02 | 0.060 ± 0.007 | 0.023 ± 0.006 | 0.04 ± 0.01 | −1.1 ± 0.7 | B2-3Ia+ |
| qG21 | qF309 | 17 46 17.50 ± 0.02 | −28 49 18.61 ± 0.02 | 0.050 ± 0.007 | 0.050 ± 0.008 | 0.04 ± 0.01 | 0.4 ± 0.6 | WC8-9(d? +OB?) |
| qG22 | qF274 | 17 46 17.53 ± 0.02 | −28 49 28.87 ± 0.02 | 0.050 ± 0.007 | 0.050 ± 0.008 | 0.04 ± 0.01 | 0.4 ± 0.6 | WN8-9ha |
| qG23 | qF344 | 17 46 16.67 ± 0.02 | −28 49 09.24 ± 0.02 | 0.050 ± 0.007 | 0.060 ± 0.008 | 0.04 ± 0.01 | 0.8 ± 0.6 | O7-8 Ia |
| qG24 | qF278, LHO077 | 17 46 15.12 ± 0.02 | −28 49 34.75 ± 0.02 | 0.050 ± 0.006 | 0.060 ± 0.009 | 0.03 ± 0.01 | 1.4 ± 0.7 | B0-1 Ia+ |
| qG25 | LHO076 | 17 46 14.14 ± 0.02 | −28 49 35.26 ± 0.02 | 0.050 ± 0.006 | 0.037 ± 0.007 | 0.030 ± 0.008 | 0.4 ± 0.6 | WC9d(+OB) |
| qG26 | WR 102ca | 17 46 13.05 ± 0.02 | −28 49 25.10 ± 0.02 | 0.044 ± 0.006 | 0.040 ± 0.007 | 0.030 ± 0.008 | 0.6 ± 0.6 | |
| qG27 | qF243, LHO075 | 17 46 14.13 ± 0.03 | −28 49 36.60 ± 0.03 | 0.032 ± 0.005 | 0.030 ± 0.007 | 0.020 ± 0.008 | 0.8 ± 0.9 | WC9d(+OB) |
| qG28 | 17 46 13.09 ± 0.03 | −28 49 29.42 ± 0.03 | 0.031 ± 0.005 | 0.030 ± 0.007 | < 0.0132e | > 1.6 | ||
| qG29 | 17 46 09.69 ± 0.02 | −28 49 39.36 ± 0.02 | 0.080 ± 0.009 | 0.17 ± 0.02 | 0.15 ± 0.02 | 0.2 ± 0.3 | ||
a Nomenclature for cluster members adopted by Lang et al. (2005).
b Stellar identification as listed in Clark et al. (2018b) according to Figer et al. (1999) and Liermann et al. (2009).
c Units of right ascension are hours, minutes, and seconds, and units of declination are degrees, arcminutes, and arcseconds. Errors are in seconds and arcseconds, respectively.
d Flux densities measured from images corrected for primary-beam attenuation.
e Upper limit of the undetected source was fixed at 2 times the off-source rms noise level.
f Spectral classification by Clark et al. (2018b).
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