Table 1
Log of observations at 86 GHz (3 mm) and characteristics of the clean maps shown in Fig. 1.
| Date | Array | Beam FWHM |
| [ mas,deg ] | ||
|
|
||
| 08/05/2009 | VLBA_3mm, On, | 0.12 × 0.05, −4.2° |
| Eb, PdB, PV | ||
| 10/10/2009 | VLBA_3mm, On, | 0.10 × 0.04, −1.9° |
| Eb, PdB, PV | ||
| 07/05/2010 | VLBA_3mm, On, | 0.11 × 0.04, −7.1° |
| Eb, PdB, PV, Mh | ||
Notes. Column 1: Date of observation. Column 2: Array. VLBA_3mm indicates the part of the Very Long Baseline Array (all but the Hancock and St. Croix antennas) which is equipped with 86 GHz receivers; On – Onsala 20 m; Eb – Effelsberg 100-m; PdB – Plateau de Bure Interferometer; PV – IRAM 30-m atop Pico Veleta; Mh – Metsähovi. Column 3: Beam FWHM and position angle for untapered data with uniform weighting.
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