Table 3
Gas radial velocities in RRL and CS emission at the position of the nuclear cluster stars, their stellar radial velocities, and spectral type.
| Sources | Gas radial velocity vg | Stellar radial velocity vs | Type | ||
| [km s-1] | [km s-1] | ||||
| H39α | H36β | CS(5–4) | |||
|
|
|||||
| IRS 1W P06 | 32 | 5 | – | 35 P06 | Be? |
| IRS 1E P06 | 34 | – | – | 18 P14 | B1-3 I |
| IRS 2L V06 | –251, 22 | –284 | – | – | – |
| IRS 2S V06 | –237 | –289 | – | 107 G00 | L |
| IRS 3 V06 | – | – | 61 | – | E |
| IRS 3E P06 | – | – | 63 | 107 P06 | WC5/6 |
| IRS 4 V06 | 175 | – | –20 | – | – |
| IRS 5 V06 | 125 | – | 66 | – | – |
| IRS 6W V06 | –128 | –147 | – | –150 G00 | E |
| IRS 6E V06 | –134 | –67, 21 | 28, 99 | – | – |
| IRS 7 V06 | –110 | –118 | –130 SiO, –53 | –114 R07 | L |
| IRS 7E2(ESE) P06 | 102 | – | – | –80 P06 | Ofpe/WN9 |
| IRS 9 V06 | 173 | – | – | –342 R07 | – |
| IRS 9N V06 | 170 | 160 | – | –110 G00 | – |
| IRS 9W P06 | –70, 300 | – | – | 140 P06 | WN8 |
| IRS 9SW P06 | 202 | – | – | 180 P06 | WC9 |
| IRS 9SE P06 | 198 | – | –31 | 130 P06 | WC9 |
| IRS 10W V06 | 91 | 65 | – | 7 G00 | – |
| IRS 10EE V06 | 102 | – | –31 SiO | –55 G00, –27 R07,L10 | L |
| IRS 12N V06 | –207 | – | – | –96 G00, –63 R07,L10 | L |
| IRS 13E V06 | –200, –40 | – | – | 45 G00 | E |
| IRS 13W V06 | –220, –30 | – | – | –74 G00 | L |
| IRS 13NηV06 | –40 | –33 | – | 40 P06 | B V/III |
| IRS 13E1 P06 | –200, –30 | –45 | – | 71 P06 | B0–1 I |
| IRS 13E4 P06 | –180, –30 | – | – | 56 P06 | WC9 |
| IRS 13E2 P06 | –200, –30 | –55 | – | –2 P14 | WN8 |
| IRS 16NW P06 | – | – | 46 | –30 G00, –44 P06, 17 P14 | Ofpe/WN9 |
| IRS 16C P06 | – | – | –41 | 125 P06, 186 P14 | Ofpe/WN9 |
| IRS 16SW P06 | –130 | –155 | –36 | 320 P06, 460 P14 | Ofpe/WN9 |
| IRS 16SSW P06 | –157 | –222, 37 | –36, 45 | 206 P06, 221 F15 | O8–9.5 I |
| IRS 16CC P06 | –52 | – | –41 | 241 P06, 145 P14, 256 F15 | O9.5–B0.5 I |
| IRS 16NE P06 | –19 | – | – | 17 G00, –10 P06, 53 P14 | Ofpe/WN9 |
| IRS 16SSE2 P06 | –122 | –137 | –34 | 286 P06, | B0-0.5 I |
| IRS 16SSE1 P06 | –117 | –133 | –33 | 216 P06, 229 F15 | O8.5–9.5 I |
| IRS 16SE1 P06 | –93 | –30 | – | 450 G00, 366 P06 | WC8/9 |
| IRS 16S P06 | –128 | –155 | –34 | 100 P06, 123 P14, 149 F15 | B0.5–1 I |
| IRS 16SE2 P06 | –40 | –72 | –38 | 327 P06 | WN5/6 |
| IRS 16SE3 P06 | –30 | –54 | – | 281 P06 | O8.5–9.5 I |
| IRS 17 V06 | – | – | 16 | 185 G00, 73 R07 | L |
| IRS 20 V06 | –199 | – | – | 17 G00 | L |
| IRS 21 V06 | –84 | –96 | –9 | – | – |
| IRS 29NE1 P06 | – | – | 46 | –130 G00, –99 P14 | WC8/9 |
| IRS 29 P06 | – | – | 46 | –190 P06 | WC9 |
| IRS 33SW V06 | –220, 29 | – | –27, 138 | – | – |
| IRS 33NW V06 | –300, 18 | –312 | –30 | – | – |
| IRS 33N P06 | –235, 19 | –295 | –29 | 68 P06, 93 P14, 105 F15 | B0.5–1 I |
| IRS 33E P06 | –150 | –167 | – | 160 G00, 170 P06, 214 P14 | Ofpe/WN9 |
| IRS 34E P06 | –200, –30 | – | 63 | –154 P06 | O9–9.5 I |
| IRS 34W P06 | –180, –50 | – | 40 | –215 G00, –290 P06, –184 P14 | Ofpe/WN9 |
| IRS 34NW P06 | –248 | –200 | 55 | –150 P06 | WN7 |
| AFNW P06 | – | 74 | – | 150 G00, 70 P06 | WN8 |
| AFNWNW P06 | – | 84 | – | 30 P06 | WN7 |
| W11b P06 | –295, 22 | – | –34 | –364 P06 | OB |
| W13b P06 | –301, 20 | – | –33 | –24 P06 | OB I? |
| W10b P06 | 27 | – | –30 | –434 P06 | O8–9.5 III/I |
| W7b P06 | 31 | – | 79 | –344 P06 | O9–9.5 III? |
| W14b P06 | 11 | – | –26 | –224 P06 | O8.5–9.5 I? |
| B9b P06 | 145 | 130 | 3 | –150 P06 | WC9 |
Notes. Spectra were obtained from a beam sized aperture centered on the source position (see Table D.1, and Figs. 1 and A.13 for details). References for the source positions and velocities are: and The spectral type is taken from Paumard et al. (2006), except from the classes E and L that are denoting the early-type and late-type stars as given in Genzel et al. (2000).
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