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Table 7.

Imaging parameters of VLBI observations.

Source Date Code ν Speak Sint rms Beam
(GHz) (mJy beam−1) (mJy) (μJy beam−1) (mas × mas,°)
(1) (2) (3) (4) (5) (6) (7) (8)
190704A
1WHSP J104516.2+275133 18+22 Jul 2019 BG261 1.5 3.5 ± 0.3 3.8 ± 0.4 95 11.6 × 6.1, −18.4
4.4 3.3 ± 0.4 3.7 ± 0.5 90 4.3 × 2.2, −24.5
7.6 3.8 ± 0.4 3.7 ± 0.5 138 2.4 × 1.3, −20.7
8.4 3.4 ± 0.3 3.5 ± 0.4 47 2.1 × 1.1, −22.8
17 Jan 2020 BA133 4.7 2.5 ± 0.2 2.7 ± 0.3 27 3.5 × 1.4, −3.7
7.6 2.5 ± 0.3 2.7 ± 0.3 21 2.0 × 0.8, −3.0

200109A
TXS 1100+122 29 Feb 2020 RG011 4.9 307 ± 31 332 ± 33 68 3.6 × 2.6, 7.8
04 Feb 2020 BG263 8.4 380 ± 38 409 ± 41 106 2.2 × 1.0, −6.3
23.5 360 ± 36 392 ± 39 118 0.8 × 0.3, −9.6

201021A
1RXS J172314.4+142103 05 Nov 2020 DD10006 5.1 0.83 ± 0.03 0.91 ± 0.07 15 34.5 × 34.5 ( * )
PKS 1725+123 05 Nov 2020 DD10006 5.1 323 ± 16 334 ± 17 49 82.4 × 38.7, 23.9

201114A
NVSS J065844+063711 01+02 Dec 2020 EG108 4.9 8.4 ± 0.8 12.9 ± 1.3 33 1.8 × 1.1, 82.4
06 Dec 2020 BG264A 8.4 9.4 ± 0.9 14.7 ± 1.6 32 2.0 × 1.0, 2.2
23.5 8.5 ± 0.9 12.5 ± 1.5 79 1.0 × 0.4, −13.5

Notes. Column 1: candidate neutrino counterpart; Col. 2: date of observation; Col. 3: project code; Col. 4: observation frequency in GHz; Col. 5: peak brightness in mJy beam−1; Col. 6: integrated flux density in mJy; Col. 7: 1-σ noise level of the image in μJy beam−1; Col. 8: major axis (mas), minor axis (mas), and PA (in degrees, measured from north to east) of the restoring beam. The parameters refer to natural weighting images. ( * ) this image was produced using a circular restoring beam.

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