PITSZI: Probing intra-cluster medium turbulence with Sunyaev–Zel’dovich imaging - Application to the triple merging cluster MACS J0717.5+3745

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Volume 694 (February 2025)

A&A, 694 (2025) A182

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Table 3.

Constraints on the pressure fluctuation parameters.

Analysis	Model	σ_𝒫	L_inj	A_noise	A_CIB
		(–)	(kpc)	(–)	(–)
Reference^†	RM₁	$1 . 01_{- 0.11}^{+ 0.08}$ $1.01_{-0.11}^{+0.08}$	$3128_{- 1792}^{+ 1322}$ $3128_{-1792}^{+1322}$	$1 . 06_{- 0.04}^{+ 0.04}$ $1.06_{-0.04}^{+0.04}$	$1 . 8_{- 1.3}^{+ 1.8}$ $1.8_{-1.3}^{+1.8}$
Reference^†	RM₂	$0 . 63_{- 0.03}^{+ 0.03}$ $0.63_{-0.03}^{+0.03}$	$859_{- 62}^{+ 63}$ $859_{-62}^{+63}$	$1 . 01_{- 0.04}^{+ 0.04}$ $1.01_{-0.04}^{+0.04}$	$2 . 4_{- 1.6}^{+ 1.7}$ $2.4_{-1.6}^{+1.7}$
Reference^†	RM₃	$0 . 58_{- 0.04}^{+ 0.04}$ $0.58_{-0.04}^{+0.04}$	$873_{- 75}^{+ 74}$ $873_{-75}^{+74}$	$1 . 04_{- 0.04}^{+ 0.04}$ $1.04_{-0.04}^{+0.04}$	$2 . 4_{- 1.7}^{+ 1.7}$ $2.4_{-1.7}^{+1.7}$
Reference^†	RM₄	$0 . 68_{- 0.07}^{+ 0.07}$ $0.68_{-0.07}^{+0.07}$	$653_{- 78}^{+ 78}$ $653_{-78}^{+78}$	$1 . 03_{- 0.04}^{+ 0.04}$ $1.03_{-0.04}^{+0.04}$	$2 . 4_{- 1.7}^{+ 1.7}$ $2.4_{-1.7}^{+1.7}$
Reference^†	RM₅	$0 . 27_{- 0.11}^{+ 0.11}$ $0.27_{-0.11}^{+0.11}$	$1010_{- 418}^{+ 410}$ $1010_{-418}^{+410}$	$1 . 05_{- 0.04}^{+ 0.04}$ $1.05_{-0.04}^{+0.04}$	$2 . 5_{- 1.7}^{+ 1.7}$ $2.5_{-1.7}^{+1.7}$

Cross-spectrum	RM₃	$0 . 64_{- 0.04}^{+ 0.04}$ $0.64_{-0.04}^{+0.04}$	$812_{- 72}^{+ 71}$ $812_{-72}^{+71}$	0 (fixed)	$2 . 5_{- 1.7}^{+ 1.7}$ $2.5_{-1.7}^{+1.7}$
kSZ template subtracted	RM₃	$0 . 70_{- 0.03}^{+ 0.03}$ $0.70_{-0.03}^{+0.03}$	$852_{- 51}^{+ 49}$ $852_{-51}^{+49}$	$1 . 03_{- 0.04}^{+ 0.04}$ $1.03_{-0.04}^{+0.04}$	$2 . 4_{- 1.6}^{+ 1.7}$ $2.4_{-1.6}^{+1.7}$
Point sources masked	RM₃	$0 . 61_{- 0.04}^{+ 0.04}$ $0.61_{-0.04}^{+0.04}$	$851_{- 69}^{+ 72}$ $851_{-69}^{+72}$	$1 . 03_{- 0.04}^{+ 0.04}$ $1.03_{-0.04}^{+0.04}$	$2 . 4_{- 1.6}^{+ 1.7}$ $2.4_{-1.6}^{+1.7}$
No radial model based weight	RM₃	$0 . 70_{- 0.04}^{+ 0.04}$ $0.70_{-0.04}^{+0.04}$	$822_{- 62}^{+ 62}$ $822_{-62}^{+62}$	$0 . 98_{- 0.04}^{+ 0.04}$ $0.98_{-0.04}^{+0.04}$	$2 . 4_{- 1.7}^{+ 1.7}$ $2.4_{-1.7}^{+1.7}$
MCMC fit	RM₃	$0 . 58_{- 0.03}^{+ 0.03}$ $0.58_{-0.03}^{+0.03}$	$869_{- 60}^{+ 67}$ $869_{-60}^{+67}$	$1 . 04_{- 0.04}^{+ 0.04}$ $1.04_{-0.04}^{+0.04}$	$1 . 1_{- 0.8}^{+ 1.7}$ $1.1_{-0.8}^{+1.7}$

Notes. The central value gives the median of the distribution and the uncertainties correspond to the 68% confidence intervals. The reference values († symbol) were obtained with the following analysis choices: auto-spectrum, no kSZ correction, point sources subtracted, radial model based weighting plus 2 arcmin radius region of interest, non-linear least square fit, and projection approach.

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