Deep Chandra observations of PLCKG287.0+32.9: A clear detection of a shock front in a heated former cool core

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Volume 697 (May 2025)

A&A, 697 (2025) A72

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Table C.2.

Results of the spectral fit to an absorbed apec model (tbabs*apec) performed in the [0.5-7.0] keV energy band in concentric annular regions extracted up to R₅₀₀.

R_in - R_out	R_in - R_out	Exposure	Net counts (% total)	kT	Z	χ²/dof (χ_red²)
(″)	(kpc)	(ksec)		(keV)	(Z_⊙)
0-20	0-105	131.9	4333 (97.7)	$13 . 69_{- 1.65}^{+ 1.40}$ $13.69_{-1.65}^{+1.40}$	$0 . 47_{- 0.19}^{+ 0.19}$ $0.47_{-0.19}^{+0.19}$	147.14/133 (1.11)
20-30	105-157	131.9	4612 (97.4)	$11 . 42_{- 0.96}^{+ 1.09}$ $11.42_{-0.96}^{+1.09}$	$0 . 48_{- 0.15}^{+ 0.15}$ $0.48_{-0.15}^{+0.15}$	134.03/140 (0.96)
30-38	157-199	131.9	4039 (96.8)	$8 . 94_{- 0.80}^{+ 1.05}$ $8.94_{-0.80}^{+1.05}$	$0 . 38_{- 0.13}^{+ 0.13}$ $0.38_{-0.13}^{+0.13}$	144.48/128 (1.13)
38-45	199-235	131.9	3705 (96.2)	$9 . 94_{- 0.99}^{+ 1.19}$ $9.94_{-0.99}^{+1.19}$	$0 . 43_{- 0.15}^{+ 0.15}$ $0.43_{-0.15}^{+0.15}$	105.30/117 (0.90)
45-52	235-272	131.9	3402 (95.2)	$9 . 45_{- 0.87}^{+ 0.95}$ $9.45_{-0.87}^{+0.95}$	$0 . 25_{- 0.13}^{+ 0.13}$ $0.25_{-0.13}^{+0.13}$	94.93/108 (0.88)
52-59	272-309	131.9	3276 (94.5)	$10 . 54_{- 1.11}^{+ 1.29}$ $10.54_{-1.11}^{+1.29}$	$0 . 06_{- 0.06}^{+ 0.15}$ $0.06_{-0.06}^{+0.15}$	129.00/106 (1.22)
59-67	309-350	131.9	3373 (93.3)	$10 . 55_{- 1.01}^{+ 1.13}$ $10.55_{-1.01}^{+1.13}$	$0 . 04_{- 0.04}^{+ 0.14}$ $0.04_{-0.04}^{+0.14}$	104.71/110 (0.95)
67-76	350-398	131.9	3308 (91.4)	$10 . 64_{- 1.08}^{+ 1.30}$ $10.64_{-1.08}^{+1.30}$	$0 . 30_{- 0.16}^{+ 0.16}$ $0.30_{-0.16}^{+0.16}$	110.22/113 (0.98)
76-87	398-455	131.9	3489 (89.0)	$9 . 49_{- 0.84}^{+ 1.00}$ $9.49_{-0.84}^{+1.00}$	$0 . 32_{- 0.14}^{+ 0.15}$ $0.32_{-0.14}^{+0.15}$	101.84/122 (0.84)
87-100	455-523	175.1	4122 (87.6)	$10 . 71_{- 1.00}^{+ 1.13}$ $10.71_{-1.00}^{+1.13}$	$0 . 33_{- 0.15}^{+ 0.15}$ $0.33_{-0.15}^{+0.15}$	124.89/143 (0.84)
100-115	523-602	193.9	4165 (84.5)	$10 . 59_{- 1.10}^{+ 1.28}$ $10.59_{-1.10}^{+1.28}$	$0 . 38_{- 0.16}^{+ 0.16}$ $0.38_{-0.16}^{+0.16}$	152.10/150 (1.01)
115-135	602-706	244.3	4698 (80.2)	$9 . 70_{- 0.91}^{+ 0.99}$ $9.70_{-0.91}^{+0.99}$	$0 . 28_{- 0.14}^{+ 0.14}$ $0.28_{-0.14}^{+0.14}$	152.54/170 (0.90)
135-160	706-837	350.7	5067 (73.1)	$9 . 83_{- 0.84}^{+ 1.07}$ $9.83_{-0.84}^{+1.07}$	$0 . 04_{- 0.04}^{+ 0.13}$ $0.04_{-0.04}^{+0.13}$	190.42/194 (0.98)
160-192.2	837-1000	350.7	4556 (61.5)	$7 . 92_{- 0.73}^{+ 1.87}$ $7.92_{-0.73}^{+1.87}$	$0 . 14_{- 0.13}^{+ 0.13}$ $0.14_{-0.13}^{+0.13}$	210.81/206 (1.02)
191.2-294.7	1000-1541	350.7	7289 (39.1)	$7 . 28_{- 0.60}^{+ 0.78}$ $7.28_{-0.60}^{+0.78}$	$0 . 02_{- 0.02}^{+ 0.12}$ $0.02_{-0.02}^{+0.12}$	399.58/385 (1.04)

Notes. The temperature (in kiloelectron volts) and metallicity (in solar fraction, Asplund et al. 2009) were left as free parameters. The absorbing column density was left as a free parameter but was linked among the different annuli. The best-fit value is N_H = 1.60 ± 0.10 × 10²¹ cm⁻². Column 1: inner and outer radius in arcsec; column 2: inner and outer radius in kiloparsecs; column 3: combined exposure time; column 4: net counts (% of total counts); column 5: temperature (kiloelectron volts); column 6: abundance (solar value); column 7: χ²/dof . The global fit gives χ²/dof= 2302/2325 = 0.99.

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