Table 1.
Observations and imaging parameters.
| Telescope | νobs | On-source | BW | Δv | Weighting | Beam-size | PA | RMScont | RMScube |
|---|---|---|---|---|---|---|---|---|---|
| (MHz) | (h) | (MHz) | (km s−1) | ″ × ″ | (°) | (μJy beam−1) | (mJy beam−1) | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
| WSRT | 1341 | 5 | 20 | 18 | Uniform | 82 × 14 | 4.9 | 1500 | 1.1 |
| G-VLBI ( * ) | 1339 | 12.9 | 16 | 7 | Natural | 0.0127 × 0.0032 | −13.25 | 330 | 0.46 |
Notes. The columns are: (1) Telescope used; (2) central frequency of the band; (3) on-source time; (4) bandwidth; (5) velocity resolution; (6) weighting; (7) beam size; (8) beam position angle; (9) RMS noise on the continuum map; and (10) RMS noise on the spectral cube at a velocity resolution mentioned in (5). ( * )Global VLBI observations. Participating stations: Effelsberg (Germany); Westerbork (the Netherlands); Jodrell-Bank (the United Kingdom); Onsala (Sweden); Torun (Poland); the eMERLIN stations: Cambridge, Darnhall, Pickmere (the United Kingdom); the VLBA stations: Hancock, North Liberty, Fort Davis, Los Almos, Kitt Peak, Pie Town, Owens Valley, Brewster, Mauna Kea (USA).
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