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Table 1
Details on VLBI observations.
| Telescope | Date | Frequency | Spectral res. | Synthesised | 1σrms | J2223+6249 |
|---|---|---|---|---|---|---|
| MJD | (MHz) | (km s−1) | beam (α × δ; PA) | per channel | flux | |
| (mas × mas;°) | (mJy beam−1) | (mJy beam−1) | ||||
| EVN(Jb,Wb,Ef,Mc,O8,T6,Ur,Tr,Sv,Zc,Bd,Ir) | 58 063 | 1665.402 | 0.35 | 30 × 23; 78.00 | 6 | 108 |
| 1667.359 | 0.35 | 30 × 23; 57.65 | 6 | |||
| VLBA(BR,FD,HN,KP,LA,MK,NL,OV,PT,SC) | 57 929 | 1665.402 | 0.09 | 35 × 33; 39.07 | 12 | 126 |
| 1667.359 | 0.09 | 35 × 33; 10.93 | 12 | |||
| EVN(Jb,Ef,Mc,O8,Tr,Nt,Wb,Ys,Sh,Sr) | 57 097 | 6668.519 | 0.09 | 5.8 × 3.7; −78.20 | 1.5 | 147 |
| EVN(Jb,Ef,Mc,O8,Tr,Nt,Wb,Ys,Sr) | 57 444 | 6668.519 | 0.09 | 5.2 × 3.2; 61.38 | 3.0 | 189 |
| EVN(Jb,Ef,Mc,O8,Tr,Nt,Wb,Ys,Sr,T6,Ir) | 57 544 | 6668.519 | 0.09 | 4.2 × 2.8; 76.25 | 2.5 | 172 |
| EVN(Jb,Ef,Mc,O8,Tr,Nt,Wb,Ys,T6) | 57 681 | 6668.519 | 0.09 | 4.2 × 3.1; 79.75 | 5.0 | 171 |
| VLBA(BR,FD,HN,KP,LA,MK,NL,OV,PT,SC) | 57 906 | 22 235.080 | 0.11 | 0.6 × 0.5; −1.10 | 5.0 | 104 |
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