Table 1.
Summary of the polarimetric VLBI observations of 3C 84 in May 2015.
| Stations | Epoch | νobs | Beam | Ipeak | SPtot | σI | PIpeak | Ptot | σP |
|---|---|---|---|---|---|---|---|---|---|
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
| [yy/mm/dd] | [GHz] | [mas, deg] | [Jy bm−1] | [Jy] | [mJy bm−1] | [mJy bm−1] | [mJy] | [mJy bm−1] | |
| VLBA(8) | |||||||||
| +GBT+EB+ON | 2015/05/16 | 86.252 | 0.048 × 0.14 (−16.2) | 1.82 | 12.0 | 0.53 | 27.7 | 42.0 | 5.03 |
| VLBA(10) | 2015/05/11 | 43.115 | 0.15 × 0.30 (1.02) | 3.82 | 17.0 | 1.24 | 12.3 | 16.8 | 1.75 |
| VLBA(10) | 2015/05/18 | 15.352 | 0.42 × 0.63 (−8.74) | 4.00 | 28.8 | 1.30 | <2.64 | – | 0.88 |
Notes. (1) Antennas participating in each epoch. Numbers in parentheses indicate the number of participating VLBA antennas. (2) The observing epoch in year/month/day format. (3) Center frequency. (4) The restoring beam for the uniform weighting. Minor axis × major axis in mas (the position angle in degrees measured counterclockwise from north). (5) Total intensity peak (in units of Jy per beam). (6) Total flux density integrated over the entire VLBI image. (7) Total intensity rms level. (8) Linear polarization intensity peak (upper limit for 3σ significance). (9) Integrated linearly polarized flux density of the core region obtained by the quadratic sum of the integrated Stokes Q and U flux densities in the region where significant linear polarization intensities are found (“–” means no significant linear polarization in the region displayed in Figs. 2 and 3). (10) The polarization intensity noise level obtained as described in Sect. 2.1.3.
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