The Coma cluster magnetic field from Faraday rotation measures

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Table 3:

Rotation measures values of the observed sources.
Source	Projected distance	n. of beams	$\langle \rm RM\rangle$	$\sigma_{\rm RM,obs}$	Err $_{\rm fit}$	$\sigma _{\rm RM}$
	kpc		rad/m²	rad/m²	rad/m²	rad/m²
5C4.85	51	35	-256 $\pm$ 50	303	46	299 $\pm$ 36
5C4.81	124	56	-120 $\pm$ 22	166	48	159 $\pm~$ 17
5C4.74	372	10	372 $\pm$ 51	154	44	148 $\pm$ 41
5C4.114	532	16	51 $\pm$ 4	16	2	16 $\pm$ 3
5C4.127	919	7	21 $\pm$ 30	65	36	54 $\pm$ 26
5C4.42	1250	33	6 $\pm$ 12	56	43	36 $\pm$ 11
5C4.152	1489	4	32 $\pm$ 27	37	28	24 $\pm$ 21

Notes. Column 1: source name Col. 2: source projected distance from the X-ray cluster center; Col. 3: number of beams over which RMs are computed; Col. 4: mean value of the observed RM distribution; Col. 5: dispersion of the observed RM distribution; Col. 6: median of the RM fit error; Col. 7: dispersion of the RM distribution after noise deconvolution.

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