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Table 1

The fitted VLBI model parameters for J1429+5447.

Flux density Relative position Size TB
(mJy) north (mas) east (mas) (mas) (108 K)

3.03 ± 0.05 ... ... 2.63 ± 0.03 14.0 ± 0.6
0.27 ± 0.04  −4.74 ± 0.06 4.26 ± 0.06 1.29 ± 0.12 5.2 ± 1.7

0.99 ± 0.06 ... ... 0.67 ± 0.01 7.7 ± 0.7

Notes. The parameters are derived from circular Gaussian model-fitting to VLBI visibility data in Difmap, at 1.6 GHz (top) and 5 GHz (bottom). The statistical errors are estimated according to Fomalont (1999). Additional flux density calibration uncertainties are assumed as 5%. Column 1 – model component flux density (mJy); Cols. 2, 3 – separation from the main component to north and east (mas); Col. 4 – diameter (mas, FWHM); Col. 5 – brightness temperature (108 K).

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