A “MeerKAT-meets-LOFAR” study of the complex multi-component (mini-)halo in the extreme sloshing cluster Abell 2142

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Volume 686 (June 2024)

A&A, 686 (2024) A44

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Table 3.

Best-fit parameters for one- and two-component model fits to the radial surface brightness profiles along the south-east, south-west, and north-east wedges.

Direction	Instrument	Frequency	Component 1		Component 2
			I_R, c, 1	r_e, 1	I_R, c, 2	r_e, 2
		[MHz]	[μJy arcsec⁻²]	[kpc]	[μJy arcsec⁻²]	[kpc]
South-East (SE)	MeerKAT	1283	$0 . 84_{- 0.05}^{+ 0.05}$ $0.84^{+0.05}_{-0.05}$	$212_{- 8}^{+ 7}$ $212^{+7}_{-8}$	−	−
	LOFAR	143	$8 . 58_{- 0.49}^{+ 0.48}$ $8.58^{+0.48}_{-0.49}$	$248_{- 6}^{+ 7}$ $248^{+7}_{-6}$	−	−

South-West (SW)	MeerKAT	1283	$1 . 02_{- 0.07}^{+ 0.09}$ $1.02^{+0.09}_{-0.07}$	$106_{- 4}^{+ 4}$ $106^{+4}_{-4}$	−	−
	LOFAR	143	$9 . 04_{- 0.71}^{+ 0.76}$ $9.04^{+0.76}_{-0.71}$	$108_{- 9}^{+ 10}$ $108^{+10}_{-9}$	$1 . 33_{- 0.47}^{+ 0.50}$ $1.33^{+0.50}_{-0.47}$	$429_{- 70}^{+ 134}$ $429^{+134}_{-70}$

North-East (NE)	MeerKAT	1283	$0 . 81_{- 0.14}^{+ 0.20}$ $0.81^{+0.20}_{-0.14}$	$63_{- 32}^{+ 24}$ $63^{+24}_{-32}$	$0 . 32_{- 0.18}^{+ 0.15}$ $0.32^{+0.15}_{-0.18}$	$153_{- 18}^{+ 27}$ $153^{+27}_{-18}$
	LOFAR	143	$8 . 66_{- 1.36}^{+ 1.37}$ $8.66^{+1.37}_{-1.36}$	$55_{- 10}^{+ 10}$ $55^{+10}_{-10}$	$2 . 83_{- 0.38}^{+ 0.39}$ $2.83^{+0.39}_{-0.38}$	$265_{- 17}^{+ 19}$ $265^{+19}_{-17}$

Notes. We report the central surface brightness (I_R, c, i) and e-folding radius (r_e, i) for each component, according to Eq. (2), with the best-fit and 1σ uncertainty defined as the 50th percentile and the 16th and 84th percentiles respectively.

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