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Table 4

High-mass YSOs in W51 IRS2.

Source RA (J2000) Dec (J2000) Tracer
Name (h:m:s) (°::′′)

W51d extended extended Cometary HII
W51d1 19:23:40.175 14:31:07.65 UC-HII
W51d2 19:23:39.820 14:31:04.90 UC-HII
W51-North 19:23:40.055 14:31:05.59 SiO/H2O masers
W51-North companion 19:23:40.0997 14:31:05.677 NH3 thermal and masers; SO2

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