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Table 1.

Image parameters for all analyzed observations at 22 GHz and 43 GHz with natural weighting.

Epoch VLBA code Frequency rms Speak Stot bmaj bmin PA
(GHz) (Jy) (mas) (mas) (°)
(1) (2) (3) (4) (5) (6) (7) (8) (9)
2005-03-14† BR099A 43 1.21 0.33 0.80 0.46 0.20 7.37
22 8.33 0.27 0.84 0.72 0.30 4.64
2005-04-22⋆ † BR009B 43 1.23 0.29 1.64 1.11 0.21 −18.56
22 0.70 0.53 2.09 2.32 0.36 −18.58
2005-06-06 BR099C 43 0.99 0.41 1.17 0.69 0.20 −16.85
22 0.68 0.64 2.26 0.96 0.37 −10.34
2005-07-18 BR099D 43 0.75 0.52 1.00 0.52 0.18 −11.36
22 0.50 0.21 1.08 0.80 0.31 −4.86
2005-08-22 BR099E 43 1.20 0.47 1.51 0.51 0.18 −12.80
22 0.85 0.58 1.99 0.89 0.32 −9.62
2005-10-07 BR099F 43 1.05 0.48 1.30 0.49 0.19 −8.47
22 0.75 0.44 1.39 0.86 0.33 −6.25
2005-11-13 BR099G 43 0.68 0.26 0.80 0.50 0.18 −9.88
22 0.31 0.16 0.95 0.92 0.33 −9.04
2005-12-18⋆ † BR009H 43 1.02 0.40 0.91 0.64 0.20 −11.64
22 0.55 0.40 0.94 1.09 0.34 −10.05
2006-01-15 BR099I 43 0.84 0.32 0.78 0.51 0.20 −8.11
22 2.00 0.29 1.30 0.70 0.26 −7.23
2006-03-06 BR119A 43 0.93 0.40 0.83 0.52 0.20 −8.12
22 5.58 0.36 1.28 0.65 0.26 −2.84
2006-04-19† BR119B 43 0.74 0.41 1.04 0.48 0.18 −7.15
22 1.69 0.19 1.23 0.65 0.25 −4.03
2007-01-14† BR120A 43 0.41 0.21 0.74 0.61 0.26 10.05
22 0.30 0.21 0.61 0.86 0.36 −3.54
2007-03-04 BR120B 43 0.35 0.24 0.69 0.41 0.17 −3.73
22 0.27 0.23 0.67 0.89 0.36 −2.42
2007-05-05 BR120C 43 0.42 0.25 0.49 0.40 0.16 −5.15
22 0.35 0.26 0.59 0.78 0.31 −5.11
2007-06-17 BR120D 43 0.38 0.30 0.64 0.51 0.17 −8.27
22 0.32 0.28 0.70 0.93 0.32 −5.73
2007-08-11 BR120E 43 0.44 0.26 0.56 0.53 0.18 −12.30
22 0.32 0.27 0.63 0.84 0.33 −4.99
2007-10-01† BR120F 43 0.40 0.29 0.63 0.88 0.49 21.76
22 0.30 0.29 0.60 1.40 0.39 −16.64
2008-01-11⋆ † BR120G 43 0.67 0.28 0.66 0.59 0.20 −11.12
22 0.17 0.22 0.50 0.96 0.34 −5.99
2008-04-04 BR120H 43 0.37 0.21 0.73 0.54 0.19 −11.98
22 0.19 0.29 0.72 1.22 0.37 −15.58
2008-05-27 BR120I 43 0.77 0.27 0.58 0.48 0.20 −4.82
22 0.21 0.24 0.64 0.92 0.33 −8.59
2008-05-04 BR130A 43 0.56 0.30 0.70 0.42 0.16 −6.07
22 0.24 0.25 0.72 0.87 0.31 −8.35
2008-06-16 BR130B 43 0.55 0.27 0.63 0.50 0.21 −2.34
22 0.24 0.24 0.65 0.86 0.33 −6.65
2008-07-26 BR130C 43 0.70 0.36 0.64 0.47 0.20 −4.37
22 0.31 0.20 0.52 0.77 0.29 −6.67
2008-09-06 BR130D 43 0.77 0.31 0.69 0.59 0.25 −5.82
22 0.27 0.16 0.67 0.95 0.32 −10.85
2008-10-27† BR130E 43 0.47 0.11 0.78 0.44 0.18 −4.77
22 0.24 0.21 0.95 0.89 0.32 −8.94
2008-12-05† BR130F 43 0.50 0.22 0.72 0.76 0.32 15.87
22 0.20 0.17 0.86 0.90 0.33 −7.99
2009-01-18† BR130G 43 0.50 0.26 0.69 0.99 0.37 22.77
22
2009-03-08 BR130H 43 0.41 0.15 0.64 0.44 0.18 −3.25
22 0.26 0.18 0.71 0.91 0.34 −4.37
2009-04-16 BR130I 43 0.32 0.16 0.65 0.43 0.16 −7.43
22 0.21 0.26 0.82 0.90 0.34 −6.9

Notes. (1) Date of VLBA observation, (⋆): excluded in 43 GHz analysis, (†): excluded in combined 43 GHz and 22 GHz analysis; (2) VLBA experiment code; (3) frequency; and (4) rms noise level of image. The RMS was derived in ISIS by fitting a Gaussian profile to the distribution of pixel values in the images; the rms corresponds to the sigma of the best-fit profile. (5) Peak flux density, (6) total flux density, (7) FWHM major axis of restoring beam, (8) FWHM minor axis of restoring beam, and (9) PA of major axis of restoring beam.

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