Table A.1
Spectroscopically observed stars.
ID | UKIDSS ID | RA (J2000) | Dec (J2000) | J | H | K | Spectral type | AK | Distance | Radial velocity | S∕N (H & K) |
---|---|---|---|---|---|---|---|---|---|---|---|
[deg] | [deg] | [mag] | [mag] | [mag] | [mag] | [kpc] | [km s−1] | ||||
Massive stars | |||||||||||
1 | 439036534746 | 285.0448 | +03.7976 | 16.910 ± 0.013 | 14.174 ± 0.003 | 12.631 ± 0.003 | O9III | 2.96![]() |
6.77![]() |
47 ± 36 | 42–100 |
2 | 439038129414 | 285.0139 | +03.7600 | 15.052 ± 0.022 | 12.532 ± 0.021 | 11.213 ± 0.021 | O9I–III | – | – | 27 ± 4 | 143–103 |
3 | 439036534444 | 285.0427 | +03.7722 | 16.404 ± 0.009 | 13.934 ± 0.002 | 12.470 ± 0.003 | O8III | 2.74![]() |
7.42![]() |
24 ± 12 | 51–90 |
4 | 439036535027 | 285.0476 | +03.7735 | 15.986 ± 0.006 | 13.440 ± 0.001 | 11.939 ± 0.002 | O5–6I | 2.81![]() |
8.50![]() |
44 ± 25 | 69–174 |
5 | 439036534795 | 285.0459 | +03.7669 | 14.941 ± 0.003 | 12.263 ± 0.001 | 10.698 ± 0.030 | O9.5I–III | – | – | 21 ± 6 | 154–148 |
9 | 439036536349 | 285.0587 | +03.7423 | 15.569 ± 0.005 | 12.653 ± 0.001 | 10.996 ± 0.023 | O9.5I–III | – | – | 31 ± 13 | 111–125 |
10 | 439036538142 | 285.0740 | +03.7523 | 12.764 ± 0.021 | 11.714 ± 0.027 | 11.073 ± 0.001 | O9V | 1.25![]() |
4.17![]() |
67 ± 25 | 153–149 |
11 | 439036536804 | 285.0622 | +03.7357 | 14.349 ± 0.002 | 13.673 ± 0.002 | 13.127 ± 0.004 | B3V | 0.89![]() |
4.53![]() |
170 ± 122 | 48–63 |
13 | 439038128600 | 284.9904 | +03.7543 | 15.395 ± 0.004 | 12.755 ± 0.001 | 11.234 ± 0.001 | O9IIIe | 2.88![]() |
3.69![]() |
98 ± 6 | 67–112 |
15 | 439036531697 | 285.0197 | +03.7478 | 12.506 ± 0.046 | 11.414 ± 0.041 | 10.739 ± 0.029 | O9I–III | – | – | 49 ± 37 | 165–98 |
16 | 439038130441 | 284.9973 | +03.7677 | 14.736 ± 0.003 | 12.179 ± 0.001 | 10.752 ± 0.034 | A0I | 2.59![]() |
8.54![]() |
82 ± 7 | 122–91 |
18 | 439038131024 | 285.0100 | +03.7708 | 14.055 ± 0.002 | 13.341 ± 0.001 | 12.908 ± 0.004 | B3V | 0.82![]() |
4.21![]() |
138 ± 21 | 80–79 |
19 | 439036531005 | 285.0146 | +03.7719 | 13.428 ± 0.031 | 12.599 ± 0.001 | 12.084 ± 0.002 | B3V | 0.95![]() |
2.72![]() |
87 ± 47 | 145–151 |
20 | 439036531671 | 285.0212 | +03.7909 | 16.463 ± 0.009 | 13.641 ± 0.002 | 11.825 ± 0.002 | WN6 | 2.83![]() |
4.77![]() |
– | 57–81 |
22 | 439038230096 | 285.0128 | +03.8057 | 15.542 ± 0.005 | 13.351 ± 0.002 | 12.154 ± 0.002 | O9V | 2.37![]() |
4.10![]() |
76 ± 59 | 52–88 |
23 | 439038230150 | 285.0218 | +03.8059 | 16.348 ± 0.009 | 13.827 ± 0.002 | 12.409 ± 0.002 | O9V | 2.73![]() |
3.90![]() |
93 ± 34 | 30–65 |
27 | 439036534825 | 285.0454 | +03.76308 | 11.953 ± 0.024 | 9.115 ± 0.027 | 7.059 ± 0.013 | B8I | – | 10.00![]() |
– | 92–112 |
28 | 439036535555 | 285.0511 | +03.74756 | 11.166 ± 0.019 | 8.469 ± 0.023 | 6.707 ± 0.015 | M5I | 2.18![]() |
10.10![]() |
54 ± 27 | 43–55 |
29 | 439036535386 | 285.0460 | +03.7930 | 13.792 ± 0.001 | 10.807 ± 0.025 | 9.123 ± 0.022 | WN8-9h | 3.14![]() |
4.40![]() |
– | 95–94 |
Field stars | |||||||||||
6 | 439036534981 | 285.0474 | +03.7637 | 15.517 ± 0.004 | 13.652 ± 0.002 | 12.609 ± 0.003 | G8III–V | 1.53![]() |
3.07![]() |
179 ± 38 | 76–75 |
7 | 439036537285 | 285.0660 | +03.7710 | 14.531 ± 0.002 | 13.649 ± 0.002 | 12.969 ± 0.004 | G5III–V | 0.68![]() |
4.82![]() |
35 ± 66 | 71–64 |
8 | 439036537202 | 285.0658 | +03.7581 | 14.855 ± 0.003 | 12.707 ± 0.001 | 11.357 ± 0.000[9] | K3III | 1.77![]() |
2.87![]() |
113 ± 42 | 89–124 |
12 | 439036538821 | 285.0792 | +03.7399 | 15.363 ± 0.004 | 13.447 ± 0.001 | 12.432 ± 0.003 | K2III | 1.44![]() |
4.35![]() |
106 ± 13 | 50–83 |
14 | 439038127146 | 285.0133 | +03.7431 | 16.415 ± 0.011 | 13.589 ± 0.040 | 12.023 ± 0.035 | – | – | – | – | 72 |
17 | 439036533079 | 285.0323 | +03.7516 | 14.734 ± 0.003 | 13.372 ± 0.001 | 12.553 ± 0.003 | G5III–V | 1.09![]() |
3.30![]() |
130 ± 23 | 84–85 |
21 | 439036532705 | 285.0296 | +03.7918 | 16.344 ± 0.008 | 12.628 ± 0.001 | 10.601 ± 0.022 | K5–M1III | 3.13![]() |
2.03![]() |
95 ± 49 | 49–81 |
24 | 439038128244 | 284.9972 | +03.7496 | 9.901 ± 0.021 | 8.077 ± 0.035 | 7.001 ± 0.005 | M5III | 1.10![]() |
2.71![]() |
162 ± 20 | 39–68 |
25 | 439036530552 | 285.0102 | +03.7507 | 9.601 ± 0.019 | 7.482 ± 0.040 | 6.447 ± 0.013 | M5III | 1.30![]() |
1.41![]() |
81 ± 15 | 60–74 |
26 | 439036532029 | 285.0217 | +03.7582 | 9.984 ± 0.023 | 8.148 ± 0.027 | 7.077 ± 0.007 | M5III | 1.10![]() |
2.80![]() |
121 ± 19 | 87 |
30 | 439036535381 | 285.0467 | +03.7886 | 10.055 ± 0.023 | 8.893 ± 0.035 | 8.231 ± 0.021 | K2III | 0.71![]() |
0.88![]() |
89 ± 68 | 70–140 |
Notes. Identification number from the UKIDSS GPS catalogue, equatorial coordinates, near-infrared magnitudes (J, H, and KS), and spectral classification are given for all stars. For those stars with determined luminosity class, the estimated extinction and distance are also provided. Radial velocity and S/N measured for the H and K band spectra are included in the last two columns. (a)Distance estimated by Ueta et al. (2001).
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