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Table 1

Galaxies in the VUDS-LBC/COSMOS field used to derive the LyC relative escape fraction.

IDLBC Field RAD Dec zspec R mag U mag M1500 Cont
(deg) (deg) (AB) (AB)

13903 COSMOS 150.414993286 +2.159081936 3.290 22.59 28.69 –23.11 0.039 No
74113 COSMOS 149.886260986 +2.276002169 3.330 23.56 29.50 –22.14 0.045 No
56982 COSMOS 149.847152710 +2.373027802 3.356 23.65 29.46 –22.05 0.051 No
72509 COSMOS 149.994003296 +2.285038948 3.374 23.84 29.38 –21.86 0.065 No
16700 COSMOS 149.940277100 +2.082487583 3.354 24.44 29.83 –21.26 0.075 No
61293 COSMOS 149.870300293 +2.349019766 3.292 23.90 29.13 –21.80 0.087 No
21413 COSMOS 149.974533081 +2.111910582 3.319 24.50 29.68 –21.20 0.091 No
31070 COSMOS 149.912933350 +2.236840248 3.333 24.74 29.86 –20.96 0.096 No
64371 COSMOS 150.051940918 +2.332614422 3.370 24.19 29.26 –21.51 0.100 No
49197 COSMOS 149.978881836 +2.135632515 3.395 24.81 29.80 –20.89 0.108 No
58808 COSMOS 149.962997437 +2.363846302 3.359 24.63 29.58 –21.07 0.112 No
68731 COSMOS 150.138900757 +2.307063818 3.288 24.47 29.41 –21.23 0.113 No
32388 COSMOS 149.778930664 +2.229439735 3.300 24.63 29.53 –21.07 0.118 No
16446 COSMOS 149.961273193 +2.081201315 3.270 24.96 29.86 –20.74 0.118 No
69814 COSMOS 149.834243774 +2.300836325 3.366 24.56 29.45 –21.14 0.119 No
3400 Q0933 143.354507446 +28.806911469 3.270 24.88 29.76 –20.82 0.120 No
1723 COSMOS 150.447082520 +2.347564697 3.300 23.63 28.43 –22.07 0.129 No
56248 COSMOS 149.917510986 +2.378670692 3.288 24.71 29.50 –20.99 0.130 No
63275 COSMOS 149.983078003 +2.338610888 3.343 24.96 29.72 –20.74 0.134 No
72124 COSMOS 149.883422852 +2.286791325 3.352 24.71 29.46 –20.99 0.135 No
51227 COSMOS 149.892135620 +2.414754868 3.280 24.45 29.18 –21.25 0.137 No
50989 COSMOS 149.834274292 +2.416670561 3.310 24.61 29.32 –21.09 0.140 No
51473 COSMOS 150.065383911 +2.411855936 3.355 25.29 29.90 –20.41 0.153 No
8556 Q0933 143.382461548 +28.753007889 3.330 24.91 29.51 –20.79 0.155 No
17175 Q1623 246.469177246 +26.892374039 3.340 24.69 29.29 –21.01 0.155 No
47539 COSMOS 149.888641357 +2.144912004 3.311 25.02 29.59 –20.68 0.159 No
30576 COSMOS 150.141159058 +2.239602089 3.336 25.26 29.82 –20.44 0.160 No
10235 COSMOS 150.106704712 +2.044517517 3.328 25.14 29.70 –20.56 0.161 No
70238 COSMOS 149.853439331 +2.298267603 3.292 24.58 29.13 –21.12 0.162 No
42374 COSMOS 150.137237549 +2.174738884 3.294 25.44 29.87 –20.26 0.181 No
19739 COSMOS 149.934432983 +2.102468014 3.316 25.54 29.96 –20.16 0.183 No
12646 Q0933 143.328750610 +28.719076157 3.330 25.13 29.50 –20.57 0.192 No
10849 Q0933 143.360122681 +28.734085083 3.350 25.59 29.92 –20.11 0.198 No
65540 COSMOS 149.848281860 +2.325203896 3.320 25.50 29.58 –20.20 0.250 No
4890 COSMOS 149.824325562 +2.009310722 3.301 25.24 29.24 –20.46 0.268 No

19521 COSMOS 150.330398560 +2.072281122 3.303 22.55 26.50 –23.15 0.281 a Yes
63327 COSMOS 149.843582153 +2.340100288 3.329 25.02 28.47 –20.68 0.446 b No
25155 COSMOS 149.857284546 +2.270117283 3.364 25.24 28.61 –20.46 0.479 c No
40998 COSMOS 149.952316284 +2.182848215 3.321 25.19 28.36 –20.51 0.577 d Yes
48734 COSMOS 149.815368652 +2.138106108 3.384 24.99 27.99 –20.71 0.674 e Yes
47357 COSMOS 150.096496582 +2.145905495 3.292 24.91 27.78 –20.79 0.760 f Yes

52336 COSMOS 149.980270386 +2.405712605 3.371 24.85 27.06 –20.85 1.400 Yes
55594 COSMOS 149.939086914 +2.388362885 3.334 24.17 26.06 –21.53 1.873 Yes
16669 COSMOS 149.994964600 +2.080330372 3.367 24.39 26.06 –21.31 2.295 Yes
72687 COSMOS 149.877334595 +2.283946991 3.328 24.14 25.55 –21.56 2.920 Yes

Notes. The galaxies have been sorted in ascending order of relative escape fraction. The upper part of the table summarizes the non-detections (i.e. S/N< 1) in the LBC U-band, for which an upper limit to the relative escape fraction has been provided. The central subsample includes galaxies with apparent LyC detection, while the last four galaxies have escape fraction larger than 1.0 (i.e. 100%) and are thus considered unreliable, probably as a result of foreground contamination, as discussed in the main text. The last column, labelled Cont, indicates whether a galaxy is possibly contaminated by foreground emission. Notes on individual objects:

(a)

local escape fraction 1.75, calculated on the LyC emission region only;

(b,c)

they can be plausible LyC emitters;

(d)

local escape fraction 4.51;

(e)

local escape fraction 6.40;

(f)

local escape fraction 5.13.

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