The RAdio Galaxy Environment Reference Survey (RAGERS) - Evidence of an anisotropic distribution of submillimeter galaxies in the 4C 23.56 protocluster at z = 2.48

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Volume 690 (October 2024)

A&A, 690 (2024) A196

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Table 1.

Differential number counts computed in different regions and overall cumulative number counts with corresponding overdensities.

Region	S_850 μm	dN/dS	S′_850 μm	N(> S′)	δ
	(mJy)	(deg⁻² mJy⁻¹)	(mJy)	(deg⁻²)
r < 4′	2–5	1052.0 $_{- 267.8}^{+ 289.1}$ $^{+289.1}_{-267.8}$	2	2716.0 $_{- 549.0}^{+ 602.6}$ $_{-549.0}^{+602.6}$	0.1 $_{- 0.2}^{+ 0.2}$ $^{+0.2}_{-0.2}$
	5–8	195.8 $_{- 53.4}^{+ 54.0}$ $^{+54.0}_{-53.4}$	3	1123.5 $_{- 161.0}^{+ 176.5}$ $_{-161.0}^{+176.5}$	0.1 $_{- 0.1}^{+ 0.2}$ $^{+0.2}_{-0.1}$
	8–11	47.3 $_{- 47.3}^{+ 24.4}$ $^{+24.4}_{-47.3}$	4	625.6 $_{- 63.3}^{+ 74.5}$ $_{-63.3}^{+74.5}$	0.2 $_{- 0.1}^{+ 0.2}$ $^{+0.2}_{-0.1}$
	11–14	3.6 $_{- 3.6}^{+ 3.6}$ $^{+3.6}_{-3.6}$	5	425.3 $_{- 51.1}^{+ 46.2}$ $_{-51.1}^{+46.2}$	0.6 $_{- 0.2}^{+ 0.1}$ $^{+0.1}_{-0.2}$

4′≤r < 9′	2–5	533.8 $_{- 249.1}^{+ 218.9}$ $^{+218.9}_{-249.1}$	6	273.5 $_{- 43.0}^{+ 43.6}$ $_{-43.0}^{+43.6}$	0.8 $_{- 0.3}^{+ 0.3}$ $^{+0.3}_{-0.3}$
	5–8	93.7 $_{- 24.9}^{+ 28.6}$ $^{+28.6}_{-24.9}$	7	163.5 $_{- 35.2}^{+ 31.9}$ $_{-35.2}^{+31.9}$	0.9 $_{- 0.4}^{+ 0.4}$ $^{+0.4}_{-0.4}$
	8–11	27.0 $_{- 11.4}^{+ 13.9}$ $^{+13.9}_{-11.4}$	8	95.8 $_{- 27.1}^{+ 26.3}$ $_{-27.1}^{+26.3}$	1.0 $_{- 0.5}^{+ 0.6}$ $^{+0.6}_{-0.5}$
	11–14	8.7 $_{- 8.7}^{+ 9.0}$ $^{+9.0}_{-8.7}$	9	55.2 $_{- 25.5}^{+ 17.2}$ $_{-25.5}^{+17.2}$	1.1 $_{- 1.0}^{+ 0.6}$ $^{+0.6}_{-1.0}$

r < 9′	2–5	1045.2 $_{- 260.7}^{+ 306.1}$ $^{+306.1}_{-260.7}$	10	32.1 $_{- 18.0}^{+ 10.3}$ $_{-18.0}^{+10.3}$	1.2 $_{- 1.2}^{+ 0.7}$ $^{+0.7}_{-1.2}$
	5–8	130.9 $_{- 24.9}^{+ 21.9}$ $^{+21.9}_{-24.9}$	11	16.5 $_{- 16.5}^{+ 11.8}$ $_{-16.5}^{+11.8}$	0.9 $_{- 1.9}^{+ 1.4}$ $^{+1.4}_{-1.9}$
	8–11	31.8 $_{- 11.8}^{+ 10.5}$ $^{+10.5}_{-11.8}$	12	4.3 $_{- 4.3}^{+ 9.9}$ $_{-4.3}^{+9.9}$	–0.2 $_{- 0.8}^{+ 1.8}$ $^{+1.8}_{-0.8}$
	11–14	7.6 $_{- 7.6}^{+ 6.5}$ $^{+6.5}_{-7.6}$	13	1.2 $_{- 1.2}^{+ 1.2}$ $^{+1.2}_{-1.2}$	–0.6 $_{- 0.4}^{+ 0.3}$ $^{+0.3}_{-0.4}$

Notes. Uncertainties are the standard deviation of the number counts in each flux bin after 5000 realizations with de-boosting process following the Gaussian probability distributions described in Sect. 4.1. Due to the limited area, we calculated the average differential number counts across 3 mJy.

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