The TeV blazar Markarian 421 at the highest spatial resolution

M. G. Blasi; R. Lico; M. Giroletti; M. Orienti; G. Giovannini; W. Cotton; P. G. Edwards; L. Fuhrmann; T. P. Krichbaum; Y. Y. Kovalev; S. Jorstad; A. Marscher; M. Kino; D. Paneque; M. A. Perez-Torres; B. G. Piner; K. V. Sokolovsky

doi:10.1051/0004-6361/201321858

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Volume 559 (November 2013)

A&A, 559 (2013) A75

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Table 3

Model-fit parameters for each component.

Epoch	Experiment	Component	S _tot	ΔS_tot	r	Δr	θ	a
	code		(mJy)	(mJy)	(mas)	(mas)	(°)	(mas)

2011 Jan. 02	BM303o	Core	95	10	Ref	0	Ref	0
		E	204	20	0.04	0.03	0.3	0.15
		–	25.5	3	0.49	0.05	−47.1	0.42
		C3*	8.5	1.6	1.47	0.03	−41.5	0.14
		C2	10.3	1.7	2.01	0.03	−26.3	0.16
		–	16.2	6.4	3.4	0.5	−30.1	1.28
2011 Jan. 14	BG207a	Core	140	14	Ref	0	Ref	0
		E	156	15	0.04	0.03	81.7	0.11
		–	42	4	0.16	0.03	−22.3	0.30
		–	12.8	1.3	0.64	0.03	−36.9	0.34
		C3	12.8	1.3	1.28	0.03	−37.9	0.54
		C1	9.8	1.4	4.23	0.14	−33.9	1.41
2011 Feb. 05	BM303p	Core	194	19	Ref	0	Ref	0
		E	75	8	0.08	0.02	53.0	0.08
		D	21.9	2.3	0.38	0.02	−25.2	0.30
		–	4.7	1.0	0.93	0.06	−40.6	0.33
		C3*	11.2	1.9	1.52	0.08	−36.6	0.59
		–	5.0	4	3.1	0.5	−30.8	1.59
2011 Feb. 25	BG207b	Core	203	20	Ref	0	Ref	0
		E	224	22	0.04	0.04	24.6	0.14
		D	29	3	0.31	0.04	−5.2	0.33
		–	10.5	1.1	0.69	0.04	−42.3	0.38
		C3	14.4	1.5	1.30	0.07	−35.4	0.77
		–	2.0	0.4	2.78	0.13	−46.7	0.48
		C1	5.6	0.8	4.01	0.14	−33.1	0.71
2011 Mar. 01	BM303q	Core	168	17	Ref	0	Ref	0
		E	131	13	0.06	0.03	−76.3	0.07
		D	20.2	2.2	0.36	0.03	−8.1	0.17
		–	10.0	1.3	0.53	0.03	−52.4	0.30
		C2	10.8	2.8	1.78	0.21	−32.6	0.87
		–	14.6	3	3.54	0.17	−26.0	0.91
2011 Mar. 29	BG207c	Core	189	19	Ref	0	Ref	0
		E	170	17	0.06	0.03	37.8	0.11
		D	27.6	2.8	0.37	0.03	−18.6	0.32
		–	6.3	0.7	0.78	0.03	−35.3	0.29
		C3	12.6	1.4	1.29	0.05	−34.5	0.56
		C1	11.8	1.6	3.98	0.11	−34.9	1.20
2011 Apr. 22	BM303r	Core	127	13	Ref	0	Ref	0
		E	199	20	0.06	0.02	28.2	0.12
		D	33.2	3	0.36	0.02	−20.8	0.33
		C3	15.1	2.0	1.09	0.15	−33.9	0.61
		C2	3.0	0.6	1.93	0.02	−32.4	0.13
		–	11.9	3	3.9	0.4	−36.3	1.51
2011 Apr. 25	BG207d	Core	153	15	Ref	0	Ref	0
		E	97	10	0.06	0.03	88.9	0.06
		–	33	3	0.13	0.03	10.6	0.13
		D	17.3	1.8	0.38	0.03	−27.4	0.28
		–	0.8	0.8	0.80	0.07	−49.6	0.47
		C3	11.4	1.4	1.43	0.17	−31.7	0.76
		C1	5.2	0.9	4.20	0.11	−34.4	0.79
2011 May 22	BM303s	Core	216	22	Ref	0	Ref	0
		E	148	15	0.08	0.02	50.5	0.08
		D	38.3	4	0.40	0.02	−14.2	0.27
		C3	12.7	1.9	1.20	0.08	−36.4	0.41
		C2	15.2	4	2.5	0.3	−30.2	1.17
		–	11.2	5	4.7	0.7	−32.5	1.48
2011 May 31	BG207e	Core	116	12	Ref	0	Ref	0
		E	106	11	0.06	0.03	20.9	0.12
		D	15.9	1.6	0.45	0.03	−18.2	0.26
		C3	7.6	0.9	1.24	0.05	−33.8	0.44
		C2	1.9	0.5	2.34	0.10	−37.1	0.46
		C1	5.9	1.4	4.18	0.24	−36.1	1.23
2011 Jun. 12	BM303t	Core	114	11	Ref	0	Ref	0
		E	116	12	0.06	0.02	52.1	0.07
		–	32.1	3	0.29	0.02	−14.1	0.25
		–	10.4	1.6	0.75	0.12	−38.0	0.47
		C3	4.6	0.8	1.37	0.02	−26.9	0.16
		C2	12.1	5	2.85	0.8	−46.1	1.94
2011 Jun. 29	BG207f	Core	92	9	Ref	0	Ref	0
		E	84	8	0.07	0.02	11.7	0.12
		D	15.5	1.6	0.41	0.02	−20.4	0.23
		–	1.9	0.3	0.63	0.02	−37.3	0.00
		C3	10.6	1.3	1.26	0.13	−35.5	0.64
		C1	3.9	1.4	4.10	0.4	−34.9	1.19
2011 Jul. 21	BM303u	Core	117	12	Ref	0	Ref	0
		E	54	5	0.09	0.03	26.1	0.08
		D	21.7	2.4	0.41	0.03	−18.5	0.22
		C3	9.7	2.3	1.26	0.12	−30.7	0.55
		–	4.6	1.1	2.70	0.03	−30.0	0.14
		–	18.8	5	3.97	0.27	−33.6	1.17
2011 Jul. 28	BG207g	Core	118	12	Ref	0	Ref	0
		E	74	7	0.07	0.03	−6.1	0.17
		D	18.0	1.8	0.48	0.03	−24.1	0.28
		C3	8.9	1.0	1.19	0.04	−33.5	0.54
		C2	3.9	0.8	2.19	0.16	−26.0	0.98
		C1	5.3	1.0	3.62	0.22	−33.0	1.33
2011 Aug. 23	BM303v	Core	139	14	Ref	0	Ref	0
		E	76	8	0.07	0.04	−11.7	0.17
		D	25.5	2.6	0.46	0.04	−20.6	0.43
		C3	12.4	1.4	1.27	0.06	−34.4	0.59
		C2	2.9	0.5	2.46	0.04	−58.1	0.15
		–	12.4	2.1	4.48	0.19	−32.3	1.44
2011 Aug. 29	BG207h	Core	129	13	Ref	0	Ref	0
		E	72	7	0.04	0.03	28.4	0.11
		–	18.5	1.9	0.29	0.03	−0.9	0.15
		D	14.3	1.5	0.50	0.03	−27.1	0.33
		C3	8.7	1.0	1.23	0.07	−31.4	0.56
		C1	6.5	1.2	4.32	0.19	−36.8	1.21
2011 Sep. 16	BM303w	Core	77	8	Ref	0	Ref	0
		E	69	7	0.09	0.02	−41.0	0.08
		–	26.4	3	0.31	0.09	−23.6	0.53
		C3	7.3	2.1	1.25	0.16	−55.2	0.57
		C2	6.5	1.2	2.16	0.05	−45.6	0.27
		–	4.6	1.0	2.78	0.02	−57.6	0.00
2011 Sep. 29	BG207i	Core	124	12	Ref	0	Ref	0
		E	98	10	0.05	0.04	−4.4	0.12
		–	25.1	2.5	0.39	0.04	−19.8	0.26
		–	8.5	0.9	0.88	0.04	−30.8	0.36
		C3	5.3	0.6	1.43	0.04	−33.8	0.35
		C1	11.5	1.6	4.49	0.16	−34.8	1.56
2011 Oct. 16	BM353a	Core	150	15	Ref	0	Ref	0
		E	79	8	0.05	0.03	31.5	0.14
		–	36.2	4	0.31	0.03	−34.8	0.36
		–	16.1	2.0	0.86	0.06	−34.5	0.46
		C2	4.6	0.8	1.99	0.03	−48.4	0.14
		–	7.6	3	4.2	0.4	−39.5	1.15
2011 Oct. 29	BG207j	Core	119	12	Ref	0	Ref	0
		E	102	10	0.03	0.03	173.9	0.11
		–	27.2	2.7	0.24	0.03	−16.2	0.27
		–	11.6	1.2	0.66	0.03	−32.5	0.35
		C3	9.6	1.0	1.25	0.04	−30.7	0.46
		C1	10.9	1.7	4.26	0.18	−34.4	1.56
2011 Nov. 28	BG207k	Core	156	16	Ref	0	Ref	0
		C4	106	11	0.05	0.03	167.9	0.08
		–	30	3	0.17	0.03	11.1	0.12
		–	18.8	1.9	0.40	0.03	−22.9	0.33
		–	5.7	0.6	0.91	0.03	−38.5	0.25
		C3	7.9	0.9	1.39	0.05	−32.2	0.50
		C1	9.2	1.3	3.81	0.13	−36.1	1.26
2011 Dec. 02	BM353b	Core	92	9	Ref	0	Ref	0
		–	69	7	0.07	0.02	−29.0	0.05
		E	42.0	4	0.07	0.02	51.6	0.13
		–	17.4	2.0	0.41	0.02	−19.0	0.31
		C3	16.0	2.5	1.14	0.08	−57.2	0.65
		–	4.7	0.9	5.10	0.02	−39.2	0.15
2011 Dec. 23	BG207l	Core	150	15	Ref	0	Ref	0
		E	143	14	0.05	0.02	32.8	0.13
		–	19.2	2.0	0.44	0.02	−20.8	0.29
		–	8.6	1.1	0.87	0.09	−37.1	0.45
		C3	6.6	1.0	1.28	0.12	−28.3	0.45
		C1	5.0	1.1	4.37	0.12	−34.2	0.59

Notes. C3*: hypothesized C3 component. Ref: reference point of our frame.

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