A decade of SN 1993J: discovery of radio wavelength effects in the expansion rate

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Volume 505 / No 3 (October III 2009)

A&A, 505 3 (2009) 927-945

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Table 1:

Summary of VLBI observations.
Date	Age^a	Map Flux^b	Map Peak^c	Noise rms^d	Radius^e	$\lambda$ (cm)
(dd/mm/yy)	(days)	(mJy)	(mJy beam^-1)	(mJy beam^-1)	(mas)	3.6	6	18
26/09/93	182	78.50	8.91	0.037	0.488 $\pm$ 0.004	X
22/11/93	239	57.30	7.32	0.089	0.628 $\pm$ 0.014	X
20/02/94	329	51.00	6.52	0.037	0.818 $\pm$ 0.015	X
29/05/94	427	41.50	5.24	0.094	1.02 $\pm$ 0.02	X
20/09/94	541	53.40	7.01	0.097	1.15 $\pm$ 0.03		X
23/02/95	697	44.30	5.53	0.090	1.48 $\pm$ 0.04		X
11/05/95	774	41.80	5.63	0.083	1.66 $\pm$ 0.04		X
01/10/95	917	32.20	4.36	0.170	1.92 $\pm$ 0.04		X
28/03/96	1096	31.30	3.47	0.082	2.21 $\pm$ 0.03		X
17/06/96	1177	26.50	2.94	0.110	2.31 $\pm$ 0.04		X
22/10/96	1304	26.10	3.12	0.074	2.61 $\pm$ 0.02		X
25/02/97	1430	24.44	2.46	0.085	2.81 $\pm$ 0.05		X
21/09/97	1638	21.75	2.52	0.061	3.09 $\pm$ 0.03		X
18/02/98	1788	21.28	2.28	0.061	3.37 $\pm$ 0.03		X
30/05/98	1889	22.24	2.94	0.059	3.48 $\pm$ 0.04		X
23/11/98	2066	20.62	2.30	0.045	3.74 $\pm$ 0.04		X
30/11/98	2073	39.84	4.67	0.050	3.84 $\pm$ 0.06			X
10/06/99	2265	18.05	1.89	0.053	4.06 $\pm$ 0.04		X
22/09/99	2369	17.02	2.03	0.043	4.20 $\pm$ 0.04		X
06/06/00	2627	15.87	2.19	0.066	4.48 $\pm$ 0.06		X
20/11/00	2794	27.72	3.34	0.040	4.98 $\pm$ 0.07			X
24/11/00	2798	14.24	1.64	0.047	4.71 $\pm$ 0.10		X
14/02/01	2880	13.10	1.37	0.057	4.84 $\pm$ 0.07		X
18/11/01	3157	10.58	1.28	0.048	5.21 $\pm$ 0.10		X
07/11/02	3511	10.36	1.11	0.047	5.67 $\pm$ 0.10		X
17/11/02	3521	16.12	1.80	0.050	6.06 $\pm$ 0.05			X
29/10/03	3867	09.47	1.25	0.046	6.15 $\pm$ 0.11		X

^a Age is in days after explosion.
^b Map Flux corresponds to total map flux density.
^c Maximum flux density per unit beam in the maps.
^d Root-mean-square of the corresponding residual maps.
^e SN 1993J radius (and its standard deviation) as estimated using the Common-Point Method described in the text (see Sect. 4.2 and Appendix A for details).

Source LaTeX | All tables | In the text

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