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Table B.1

Observing epochs and M 87 core model-fit parameters.

Epoch MJD νobs Sν Speak d σrms Bmaj Bmin BPA
(yyyy-mm-dd) (GHz) (Jy) (Jy beam−1) (mas) (mJy beam−1) (mas) (mas) (deg)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
2012-12-04 56 265 21.7 1.7 ± 0.2 1.7 ± 0.1 <0.31 10.0 5.70 3.22 −68.0
43.4 1.3 ± 0.2 1.3 ± 0.1 <0.17 9.0 2.84 1.61 −66.3
86.8 1.1 ± 0.2 1.1 ± 0.1 0.18 ± 0.02 13.9 1.39 0.83 −67.0
2013-01-16 56 308 21.7 1.9 ± 0.2 1.8 ± 0.1 0.91 ± 0.06 8.0 5.33 3.32 −79.5
43.4 1.4 ± 0.1 1.3 ± 0.1 0.54 ± 0.04 5.6 2.67 1.66 −81.0
86.8 1.1 ± 0.2 0.8 ± 0.1 0.53 ± 0.08 17.8 1.49 0.81 −63.4
2013-02-27 56 350 21.7 1.7 ± 0.2 1.7 ± 0.1 <0.27 7.6 5.43 3.36 −84.9
43.4 1.3 ± 0.1 1.2 ± 0.1 0.56 ± 0.04 4.9 2.76 1.64 −89.1
86.8 1.2 ± 0.2 1.0 ± 0.1 0.50 ± 0.06 15.2 1.43 0.82 −88.5
2013-03-28 56 380 21.7 1.6 ± 0.2 1.6 ± 0.1 0.58 ± 0.04 7.9 5.33 3.26 −78.3
43.4 1.3 ± 0.1 1.2 ± 0.1 0.38 ± 0.02 4.8 2.66 1.66 −75.9
86.8 1.3 ± 0.2 1.0 ± 0.1 0.52 ± 0.05 10.9 1.35 0.79 −80.4
2013-04-11 56 394 21.7 1.8 ± 0.2 1.8 ± 0.1 0.40 ± 0.03 10.2 5.41 3.24 −75.3
43.4 1.4 ± 0.2 1.3 ± 0.1 <0.15 8.1 2.66 1.64 −76.2
86.8 1.3 ± 0.2 1.1 ± 0.1 0.52 ± 0.05 8.2 2.62 0.97 49.3
2013-05-07 56 419 21.7 1.8 ± 0.2 1.8 ± 0.1 0.46 ± 0.04 11.4 5.48 3.28 −72.2
43.4 1.4 ± 0.2 1.3 ± 0.1 0.50 ± 0.05 10.6 2.63 1.74 −73.4
86.8 1.4 ± 0.3 0.9 ± 0.2 0.7 ± 0.1 29.0 1.38 0.82 −76.4
129.3 1.1 ± 0.3 0.9 ± 0.3 0.4 ± 0.1 32.5 0.85 0.64 −72.8
2013-09-24 56 559 21.7 1.7 ± 0.2 1.6 ± 0.2 0.71 ± 0.08 17.9 5.39 3.25 −77.9
43.4 1.1 ± 0.2 1.0 ± 0.2 <0.31 24.7 2.82 1.52 −78.9
2013-10-15 56 581 21.7 1.7 ± 0.2 1.7 ± 0.1 0.74 ± 0.06 10.2 5.34 3.49 −83.3
43.4 1.3 ± 0.2 1.2 ± 0.1 <0.19 11.0 2.77 1.63 −70.1
86.8 1.3 ± 0.1 1.0 ± 0.1 0.57 ± 0.05 7.7 1.49 0.79 −77.4
2013-11-19 56 616 21.7 1.9 ± 0.2 1.8 ± 0.2 <0.35 14.4 5.19 3.37 −85.0
43.4 1.3 ± 0.2 1.3 ± 0.1 <0.20 13.0 2.60 1.65 −83.8
86.8 1.3 ± 0.2 1.1 ± 0.1 0.38 ± 0.04 11.3 1.31 0.81 −86.3
2013-12-24 56 650 21.7 2.0 ± 0.2 2.0 ± 0.2 <0.32 13.4 5.28 3.19 −89.5
43.4 1.4 ± 0.2 1.3 ± 0.1 <0.19 12.3 2.65 1.63 −89.7
86.8 1.2 ± 0.2 1.0 ± 0.1 0.39 ± 0.04 12.0 1.34 0.77 −89.2
129.3 0.9 ± 0.3 0.8 ± 0.3 <0.09 15.4 0.98 0.51 −71.4
2014-01-27 56 685 21.7 2.0 ± 0.3 1.9 ± 0.2 0.88 ± 0.08 15.4 5.18 3.35 89.2
43.4 1.5 ± 0.2 1.4 ± 0.1 0.35 ± 0.03 11.2 2.57 1.76 −84.6
2014-02-28 56 716 21.7 1.9 ± 0.2 1.9 ± 0.1 <0.29 8.9 5.19 3.57 −82.4
43.4 1.3 ± 0.2 1.3 ± 0.1 0.51 ± 0.05 12.1 2.69 1.9 −83.6
86.8 1.1 ± 0.2 0.8 ± 0.1 0.66 ± 0.10 57.7 1.46 0.93 73.1
2014-03-22 56 738 21.7 1.9 ± 0.2 1.9 ± 0.2 0.66 ± 0.06 12.9 5.3 3.25 −86.5
43.4 1.4 ± 0.2 1.4 ± 0.1 0.43 ± 0.04 10.7 2.63 1.65 −85.9
86.8 1.1 ± 0.2 1.0 ± 0.2 0.22 ± 0.03 23.7 1.36 0.8 −84.4
129.3 0.9 ± 0.3 0.9 ± 0.3 <0.1 18.0 1.0 0.53 82.0
2014-04-23 56 770 21.7 2.0 ± 0.2 1.9 ± 0.2 <0.3 11.1 5.4 3.26 −89.9
43.4 1.4 ± 0.1 1.3 ± 0.1 0.43 ± 0.03 6.8 2.67 1.64 −89.6
86.8 1.4 ± 0.2 1.2 ± 0.1 0.45 ± 0.05 15.9 1.39 0.79 −89.9
129.3 1.0 ± 0.3 0.9 ± 0.3 0.15 ± 0.04 19.6 0.9 0.54 −87.4
2014-09-01 56 902 21.7 2.0 ± 0.3 1.9 ± 0.2 <0.41 19.7 5.8 3.13 −67.2
43.4 1.4 ± 0.3 1.3 ± 0.2 <0.27 23.6 2.89 1.6 −67.3
86.8 1.0 ± 0.2 1.0 ± 0.2 <0.15 22.8 1.43 0.78 −70.7
2014-09-27 56 928 21.7 1.8 ± 0.2 1.8 ± 0.1 0.83 ± 0.06 10.2 5.29 3.25 −88.5
2014-10-29 56 959 21.7 1.9 ± 0.2 1.8 ± 0.2 1.08 ± 0.09 12.2 5.43 3.16 89.9
43.4 1.4 ± 0.1 1.3 ± 0.1 0.55 ± 0.04 6.7 2.72 1.59 89.7
86.8 1.1 ± 0.2 1.0 ± 0.1 0.32 ± 0.04 15.5 1.45 0.78 84.7
2014-11-28 56 990 21.7 2.0 ± 0.3 1.8 ± 0.2 1.55 ± 0.15 16.4 5.24 3.24 −87.8
43.4 1.5 ± 0.2 1.4 ± 0.1 0.55 ± 0.04 9.2 2.64 1.65 −79.5
86.8 1.5 ± 0.3 1.2 ± 0.2 0.44 ± 0.04 13.6 1.38 0.81 87.2
2014-12-26 57 017 21.7 1.9 ± 0.2 1.8 ± 0.2 <0.34 13.9 5.57 3.1 −76.1
86.8 1.1 ± 0.4 0.8 ± 0.2 0.50 ± 0.13 49.4 1.41 0.77 −74.7
2015-01-15 57 037 21.7 1.8 ± 0.2 1.7 ± 0.1 1.3 ± 0.1 10.8 5.56 3.16 86.8
43.4 1.4 ± 0.1 1.4 ± 0.1 0.52 ± 0.03 5.4 2.66 1.68 88.7
86.8 1.3 ± 0.3 1.1 ± 0.2 0.43 ± 0.06 23.1 1.41 0.79 −87.1
2015-03-26 57 108 21.7 2.1 ± 0.2 2.0 ± 0.2 0.54 ± 0.04 12.8 5.34 3.25 −85.5
43.4 1.5 ± 0.2 1.4 ± 0.1 0.45 ± 0.04 13.1 2.61 1.67 −84.8
86.8 1.3 ± 0.2 1.3 ± 0.2 0.41 ± 0.05 9.6 1.36 0.79 −85.0
129.3 0.9 ± 0.3 0.8 ± 0.3 <0.07 9.4 0.89 0.55 −82.4
2015-04-30 57 142 21.7 2.0 ± 0.3 2.0 ± 0.2 <0.35 15.9 5.49 3.12 89.0
43.4 1.2 ± 0.1 1.3 ± 0.1 <0.12 5.0 2.74 1.56 87.1
86.8 1.1 ± 0.2 1.0 ± 0.1 0.17 ± 0.02 19.6 1.44 0.75 88.7
2015-10-23 57 318 21.7 1.8 ± 0.3 1.7 ± 0.2 <0.4 17.7 5.79 3.07 −87.0
43.4 1.5 ± 0.2 1.4 ± 0.1 0.59 ± 0.04 7.5 2.78 1.59 86.7
86.8 1.2 ± 0.2 1.0 ± 0.2 0.37 ± 0.05 21.7 1.5 0.76 81.3
2015-11-30 57 356 21.7 1.8 ± 0.2 1.8 ± 0.2 <0.36 14.2 5.54 3.24 80.6
43.4 1.5 ± 0.2 1.4 ± 0.1 <0.17 10.0 2.73 1.64 81.5
86.8 1.3 ± 0.2 1.1 ± 0.1 0.33 ± 0.03 10.1 1.42 0.79 77.8
2015-12-28 57 384 21.7 2.2 ± 0.3 2.1 ± 0.2 <0.38 20.2 5.33 3.26 −89.5
43.4 1.9 ± 0.2 1.8 ± 0.1 0.53 ± 0.03 7.5 2.64 1.65 −88.5
86.8 1.5 ± 0.2 1.3 ± 0.1 0.39 ± 0.04 11.7 1.37 0.79 −89.7
129.3 0.7 ± 0.2 0.7 ± 0.2 0.18 ± 0.05 10.8 0.9 0.54 −88.3
2016-01-13 57 401 21.7 2.2 ± 0.2 2.2 ± 0.2 0.77 ± 0.05 10.2 5.72 3.19 79.1
43.4 2.0 ± 0.3 1.7 ± 0.2 0.80 ± 0.09 19.5 2.87 1.59 80.5
86.8 1.5 ± 0.2 1.2 ± 0.1 0.45 ± 0.04 11.2 1.48 0.77 79.8
129.3 0.8 ± 0.3 0.8 ± 0.2 <0.1 16.8 0.98 0.53 80.7
2016-03-01 57 448 21.7 2.0 ± 0.3 2.0 ± 0.2 <0.35 15.2 5.7 3.25 79.6
43.4 1.7 ± 0.2 1.5 ± 0.1 0.65 ± 0.05 9.5 2.81 1.65 82.6
86.8 1.1 ± 0.2 1.0 ± 0.1 0.32 ± 0.04 16.9 1.44 0.8 80.6
129.3 0.8 ± 0.2 0.8 ± 0.2 <0.1 16.6 0.96 0.55 87.0
2016-04-24 57 502 21.7 2.0 ± 0.2 1.9 ± 0.1 <0.3 10.0 6.27 3.18 73.6
43.4 1.6 ± 0.2 1.4 ± 0.1 0.70 ± 0.06 8.5 3.15 1.58 73.8
86.8 1.0 ± 0.2 1.0 ± 0.2 <0.15 21.1 1.62 0.76 73.1
2016-10-18 57 680 21.7 2.0 ± 0.2 2.0 ± 0.2 <0.35 14.6 5.6 3.24 78.9
43.4 1.6 ± 0.2 1.5 ± 0.1 0.65 ± 0.05 9.8 2.77 1.63 78.2
86.8 1.2 ± 0.3 1.1 ± 0.2 <0.18 37.6 1.35 0.83 79.8
2016-11-27 57 719 21.7 2.2 ± 0.3 2.1 ± 0.2 <0.41 22.6 5.2 3.39 88.4
43.4 1.3 ± 0.4 1.3 ± 0.3 <0.53 68.2 3.67 1.63 67.9
86.8 1.2 ± 0.3 1.2 ± 0.2 <0.22 40.9 1.87 0.84 64.9
2016-12-28 57 750 21.7 2.0 ± 0.2 1.9 ± 0.2 <0.32 11.8 5.6 3.25 76.9
43.4 1.6 ± 0.2 1.5 ± 0.1 0.67 ± 0.05 7.1 2.83 1.63 75.4
86.8 1.2 ± 0.2 1.2 ± 0.2 <0.14 20.3 1.42 0.82 73.2

Notes. The columns show (1) the mean observing epoch, (2) the corresponding MJD, (3) the central observing frequency, (4) the core flux density, (5) the peak intensity, (6) the core FWHM size, (7) the image rms noise level after subtracting the Gaussian model, (8) and (9) the major and minor axis of the elliptical observing beam, and (10) the beam position angle in degree (zero to north, increase in CCW).

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