The SRG/eROSITA All-Sky Survey - J-band follow-up observations for selected high-redshift galaxy cluster candidates

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Volume 706 (February 2026)

A&A, 706 (2026) A212

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Table D.4.

Results for finding a radial colour over-density for the i − z colour index around the optical centre.

CLUSTER ID	μ	σ	A	SIGN_MCMC	z_{phot, i − z}	$n_{clm}^{0.8}$ $n_{\mathrm{clm}}^{0.8}$	BEST_Z
	[mag_AB]
CAHA/Omega2000

1eRASS J025044.2−044309	$0 . 93_{- 0.05}^{+ 0.05}$ $0.93_{-0.05}^{+0.05}$	< 0.15	$0 . 03_{- 0.02}^{+ 0.05}$ $0.03_{-0.02}^{+0.05}$	4.11	$1 . 01_{- 0.04}^{+ 0.04}$ $1.01_{-0.04}^{+0.04}$	4	1.02 ± 0.02
1eRASS J033041.6−053608	$0 . 99_{- 0.23}^{+ 0.23}$ $0.99_{-0.23}^{+0.23}$	> 0.02	$0 . 21_{- 0.18}^{+ 1.28}$ $0.21_{-0.18}^{+1.28}$	3.11	$1 . 08_{- 0.18}^{+ 0.07}$ $1.08_{-0.18}^{+0.07}$	1	1.00 ± 0.02
1eRASS J042710.8−155324	$1 . 01_{- 0.12}^{+ 0.12}$ $1.01_{-0.12}^{+0.12}$	> 0.02	$0 . 34_{- 0.29}^{+ 1.16}$ $0.34_{-0.29}^{+1.16}$	3.22	$1 . 11_{- 0.14}^{+ 0.04}$ $1.11_{-0.14}^{+0.04}$	1	1.18 ± 0.03
1eRASS J043901.1−022852	< 2.79	< 0.17	< 0.20	2.58	-	2	1.07 ± 0.03
1eRASS J053425.5−183444	$0 . 83_{- 0.09}^{+ 0.09}$ $0.83_{-0.09}^{+0.09}$	> 0.03	$0 . 47_{- 0.30}^{+ 0.80}$ $0.47_{-0.30}^{+0.80}$	3.79	$0 . 94_{- 0.05}^{+ 0.07}$ $0.94_{-0.05}^{+0.07}$	2	1.00 ± 0.03
1eRASS J085742.5−054517	< 2.84	< 0.17	$0 . 23_{- 0.22}^{+ 3.46}$ $0.23_{-0.22}^{+3.46}$	3.03	-	2	1.17 ± 0.02
1eRASS J091715.4−102343	$0 . 81_{- 0.04}^{+ 0.04}$ $0.81_{-0.04}^{+0.04}$	> 0.15	$1 . 88_{- 0.46}^{+ 0.62}$ $1.88_{-0.46}^{+0.62}$	8.18	$0 . 93_{- 0.02}^{+ 0.02}$ $0.93_{-0.02}^{+0.02}$	14	0.96 ± 0.02
1eRASS J094854.3+133740	$0 . 99_{- 0.05}^{+ 0.05}$ $0.99_{-0.05}^{+0.05}$	$0 . 15_{- 0.03}^{+ 0.04}$ $0.15_{-0.03}^{+0.04}$	$0 . 67_{- 0.21}^{+ 0.32}$ $0.67_{-0.21}^{+0.32}$	5.59	$1 . 08_{- 0.06}^{+ 0.07}$ $1.08_{-0.06}^{+0.07}$	6	1.08 ± 0.03
1eRASS J102148.4+225133	< 2.85	< 0.17	< 0.09	2.57	-	1	1.12 ± 0.03
1eRASS J113751.5+072839	$0 . 83_{- 0.04}^{+ 0.04}$ $0.83_{-0.04}^{+0.04}$	$0 . 16_{- 0.03}^{+ 0.03}$ $0.16_{-0.03}^{+0.03}$	$1 . 08_{- 0.27}^{+ 0.36}$ $1.08_{-0.27}^{+0.36}$	7.23	$0 . 94_{- 0.02}^{+ 0.02}$ $0.94_{-0.02}^{+0.02}$	10	0.94 ± 0.02
1eRASS J124634.6+252236	< 2.75	< 0.18	< 0.50	2.82	-	1	1.07 ± 0.02
1eRASS J133333.8+062920	< 2.86	< 0.17	< 0.08	1.94	-	1	1.14 ± 0.02
1eRASS J133801.7+175957	< 2.69	< 0.18	< 0.22	2.86	-	1	1.21 ± 0.03
1eRASS J140945.2−130101	$0 . 76_{- 0.15}^{+ 0.15}$ $0.76_{-0.15}^{+0.15}$	> 0.04	$2 . 05_{- 1.47}^{+ 4.55}$ $2.05_{-1.47}^{+4.55}$	5.89	$0 . 90_{- 0.08}^{+ 0.09}$ $0.90_{-0.08}^{+0.09}$	8	0.99 ± 0.02
1eRASS J142000.6+095651	< 2.71	< 0.18	< 0.32	2.60	-	1	1.19 ± 0.02
1eRASS J145552.2−030618	< 2.80	< 0.17	< 0.15	2.25	-	1	1.19 ± 0.05

			WST/3KK

1eRASS J051425.6−093653	< 2.85	> 0.01	> 0.00	3.34	-	3	0.72 ± 0.02
1eRASS J115512.7+125759	$0 . 82_{- 0.06}^{+ 0.06}$ $0.82_{-0.06}^{+0.06}$	$0 . 12_{- 0.04}^{+ 0.06}$ $0.12_{-0.04}^{+0.06}$	$0 . 33_{- 0.15}^{+ 0.29}$ $0.33_{-0.15}^{+0.29}$	4.04	$0 . 93_{- 0.03}^{+ 0.04}$ $0.93_{-0.03}^{+0.04}$	2	1.02 ± 0.02
1eRASS J140945.2−130101	$0 . 86_{- 0.07}^{+ 0.07}$ $0.86_{-0.07}^{+0.07}$	> 0.12	$1 . 14_{- 0.45}^{+ 0.73}$ $1.14_{-0.45}^{+0.73}$	6.67	$0 . 96_{- 0.04}^{+ 0.06}$ $0.96_{-0.04}^{+0.06}$	12	0.99 ± 0.02

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