Table 3: Radio positions of the seven NUGA sources, mainly derived from the EVN 6 cm (core) or MERLIN 18 cm/6 cm (jet) observations by fitting Gaussian profiles to the emission (the positions are coincident within the uncertainties of the different observations). The positional uncertainties are estimated from the Gaussian fits and also include the most recent (i.e., determined in the past 4 years) astromectric errors of the used phase-calibrators.
Name RA [h:m:s] $\Delta\alpha$[s] Dec [$^\circ$:':''] $\Delta\delta$['']
NGC 1961-core 05:42:04.6477 $\pm$0.0003 69:22:42.375 $\pm$0.004
NGC 2782-core 09:14:05.1124 $\pm$0.0003 40:06:49.316 $\pm$0.004
NGC 2782-jet 09:14:05.105 $\pm$0.001 40:06:49.27 $\pm$0.01
NGC 3147-core 10:16:53.6500 $\pm$0.0003 73:24:02.680 $\pm$0.004
NGC 3718-core 11:32:34.8530 $\pm$0.0003 53:04:04.518 $\pm$0.004
NGC 3718-jet 11:32:34.854 $\pm$0.001 53:04:04.523 $\pm$0.004
NGC 4579-core 12:37:43.522 $\pm$0.001 11:49:05.498 $\pm$0.004
NGC 5953-core 15:34:32.383 $\pm$0.002 15:11:37.59 $\pm$0.02
NGC 5953-jet 15:34:32.390 $\pm$0.003 15:11:38.03 $\pm$0.02
NGC 7217-core 22:07:52.3933 $\pm$0.0003 31:21:33.646 $\pm$0.004

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