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Home All issues Volume 642 (October 2020) A&A, 642 (2020) A124 Full HTML

Table 1.

Detections above z ∼ 0.8.

# Nearest object (a) Flags (b) RA Dec Sign. zphot(c) zlit(d),(e) LX(f) M500 Notes
(degrees) (degrees) (1043 erg s−1) (1013 M⊙)
1 3XLSS J022222.9-044043 US 35.595 −4.679 3.9 0.80 0.77 − − (g)
2 XLSSC 184 C 35.312 −4.207 7.4 0.80 0.81 1.9 ± 0.2 7 ± 2 −
3 XLSSC 071 C 35.639 −4.966 6.4 0.83 0.83 2.8 ± 0.2 8 ± 3 −
4 3XLSS J022432.9-044742 U 36.137 −4.796 5.1 0.83 0.90 4.3 ± 0.3 9 ± 3 −
5 3XLSS J022135.2-051811 C 35.399 −5.305 8.4 0.85 0.84 2.9 ± 0.2 7 ± 3 −
6 XLSSU J021947.4-050841 U 34.948 −5.145 5.0 0.86 0.89 1.2 ± 0.3 6 ± 2 −
7 XLSSC 015 C 35.928 −5.034 8.2 0.87 0.86 1.3 ± 0.2 6 ± 2 −
8 XLSSC 064 C 34.632 −5.018 9.2 0.89 0.87 6.9 ± 0.3 10 ± 4 −
9 3XLSS J022557.1-042845 U 36.489 −4.480 4.0 0.90 1.05 1.9 ± 0.3 6 ± 2 −
10 3XLSS J022156.1-053049 U 35.483 −5.513 3.8 0.91 0.95 1.4 ± 0.3 6 ± 2 −
11 3XLSS J021945.5-044831 U 34.935 −4.814 4.9 0.91 0.92 1.1 ± 0.2 5 ± 2 −
12 XLSSU J022530.3-042544 C 36.376 −4.429 5.9 0.87 0.92 0.8 ± 0.2 5 ± 2 −
13 3XLSS J022804.6-045351 U 37.020 −4.898 4.3 0.93 0.86 2.5 ± 0.4 7 ± 3 −
14 XLSSU J022051.0-050958 N 35.213 −5.166 6.6 0.97 − 2.5 ± 0.5 7 ± 3 (h)
15 3XLSS J022103.0-045524 U 35.260 −4.924 5.1 0.97 1.10 4.7 ± 0.3 8 ± 4 −
16 3XLSS J022739.0-045830 N 36.909 −4.976 3.9 0.99 − 10.0 ± 0.6 10 ± 5 −
17 3XLSS J022044.7-041713 N 35.185 −4.287 4.1 1.00 − 6.2 ± 0.4 9 ± 4 −
18 XLSSC 044 (zf = 0.27) US 36.141 −4.235 4.9 1.00 1.13 − − (h)
19 XLSSC 124 (zf = 0.52) NS 34.419 −4.862 3.9 1.00 − − − (h)
20 XLSSC 029 C 36.016 −4.225 8.3 1.06 1.05 13.1 ± 0.3 11 ± 5 −
21 XLSSC 005 C 36.785 −4.300 5.6 1.04 1.06 4.5 ± 0.4 7 ± 4 −
22 XLSSC 192 (zf = 0.35) NS 34.507 −5.023 4.6 1.08 − − − (h)
23 3XLSS J022027.0-043538 N 35.111 −4.595 4.7 1.09 − 13.4 ± 0.8 11 ± 6 −
24 3XLSS J022222.9-044043 US 35.595 −4.679 4.0 1.12 − − − (g)
25 XLSSC 141 (zf = 0.20) NS 34.356 −4.659 4.9 1.21 − − − −
26 XLSSC 046 C 35.762 −4.605 9.0 1.18 1.21 3.5 ± 0.5 6 ± 4 −
27 3XLSS J022003.6-045142 N 35.016 −4.861 5.1 1.44 − 1.9 ± 0.5 4 ± 3 −
28 3XLSS J022255.1-043508 N 35.726 −4.587 4.5 1.45 − 16.4 ± 0.9 9 ± 6 −
29 3XLSS J022100.4-042327 N 35.250 −4.392 4.2 1.48 − 9 ± 1 7 ± 5 −
30 3XLSS J022207.4-044532 N 35.529 −4.758 3.9 1.49 − 9 ± 1 7 ± 5 −
31 XLSSU J022105.6-043935 N 35.265 −4.656 4.1 1.54 − 13.2 ± 0.9 8 ± 6 −
32 3XLSS J022010.3-050701 N 35.043 −5.117 5.5 1.57 − 4.0 ± 0.8 5 ± 4 −
33 3XLSS J022806.4-044803 N 37.025 −4.797 4.9 1.79 − 8 ± 2 6 ± 5 −
34 JKCS 041 C 36.683 −4.694 8.2 1.63 1.80 16 ± 1 7 ± 6 −
35 3XLSS J022734.1-041021 N 36.891 −4.174 4.0 1.93 − 10 ± 1 6 ± 5 −

Notes. Every detection is presented with its official designation, X-ray characterisation model, X-ray coordinates, photometric redshift from VIDEO, and redshift from the literature (zlit) when available. The sixth column corresponds to the significance of the detection in terms of the numbers of galaxies in the highest bin. The ninth column displays the [0.5–2] keV band X-ray luminosities in the central 300 kpc of the candidate clusters, while the tenth column provides an X-ray luminosity based estimate of the cluster mass.

(a)

Nearest confirmed cluster or X-ray source. If the nearest object is a confirmed foreground cluster, its spectroscopic redshift, zf, is given.

(b)

C: spectroscopically confirmed cluster; U (for unconfirmed): not spectroscopically confirmed, but listed as a candidate cluster in the literature; N: new candidate cluster; S: superposition with a low redshift confirmed cluster or with another candidate.

(c)

The uncertainties on the photometric redshifts were estimated to 0.02 at z <  1.4 and 0.14 at z ≳ 1.4.

(d)

Spectroscopic redshifts (flag C) reported from Pierre et al. (2006), Willis et al. (2013), Andreon et al. (2014), and XXL Paper XX.

(e)

Tentative or photometric redshifts (flag U) reported from Finoguenov et al. (2010), Durret et al. (2011), Wen & Han (2011), Licitra et al. (2016), and XXL Paper XX.

(f)

We did not compute the X-ray luminosity for clusters marked S (superposition) because their X-ray emission might be a blend of foreground and background emission.

(g)

Archival spectroscopic observations available.

(h)

Gemini GMOS observations under proprietary time.

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