1

APPENDIX F: H I 21-cm ABSORPTION SPECTRA

The H I 21-cm absorption spectra towards all the sources observedby us are shown here. The QGP name as given in Table A1 areprovided for each spectra.

APPENDIX G: QGP IMAGES

The radio continuum contours overlaid on the optical images of theQGPs observed by us are presented here. The QGP name as givenin Table A1 are provided for each image.

© 0000 RAS, MNRAS 000, 000–000

2

-200 -100 0 100 200Velocity Relative to z = 0.01769 (km/s)

0.99

1.00

1.01N

orm

alis

ed F

lux

J0041-0143N

1396.5 1396.0 1395.5 1395.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.01769 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J0041-0143C

1396.5 1396.0 1395.5 1395.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.01769 (km/s)

0.94

0.96

0.98

1.00

Nor

mal

ised

Flu

x

J0041-0143S

1396.5 1396.0 1395.5 1395.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07975 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J0043+0024

1316.0 1315.5 1315.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.05198 (km/s)

0.995

1.000

1.005

Nor

mal

ised

Flu

x

J0134+0003

1351.0 1350.5 1350.0 1349.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.01565 (km/s)

0.95

1.00

1.05N

orm

alis

ed F

lux

J0802+1601

1399.0 1398.5 1398.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.04363 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J0817+1958

1361.5 1361.0 1360.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.18350 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J0821+5031

1200.5 1200.0 1199.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07342 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J0849+5108_1

1324.0 1323.5 1323.0 1322.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.31200 (km/s)

0.90

0.92

0.94

0.96

0.98

1.00

Nor

mal

ised

Flu

x

J0849+5108_2

1083.2 1083.0 1082.8 1082.6 1082.4 1082.2 1082.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.10425 (km/s)

0.95

1.00

1.05

Nor

mal

ised

Flu

x

J0856+1020

1287.0 1286.5 1286.0 1285.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02293 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J0911+1958

1389.0 1388.5 1388.0Heliocentric Frequency (MHz)

Figure F1. H I 21-cm absorption spectra towards the radio sources in our primary sample, smoothed to ∼4 km s−1. The shaded regions are affected by RFI.

© 0000 RAS, MNRAS 000, 000–000

3

-200 -100 0 100 200Velocity Relative to z = 0.05436 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1015+1637

1348.0 1347.5 1347.0 1346.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02996 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J1110+0321E

1380.0 1379.5 1379.0 1378.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02996 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J1110+0321W

1380.0 1379.5 1379.0 1378.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.06190 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1126+3802

1338.5 1338.0 1337.5 1337.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07620 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J1133+0015_1

1320.5 1320.0 1319.5 1319.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07584 (km/s)

0.99

1.00

1.01N

orm

alis

ed F

lux

J1133+0015_2

1321.0 1320.5 1320.0 1319.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.13797 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1156+3412

1249.0 1248.5 1248.0 1247.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.17098 (km/s)

0.96

0.98

1.00

1.02

Nor

mal

ised

Flu

x

J1209+4119

1213.5 1213.0 1212.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.13837 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J1228+3706

1248.5 1248.0 1247.5 1247.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.14300 (km/s)

0.80

0.85

0.90

0.95

1.00

Nor

mal

ised

Flu

x

J1241+6332

1243.5 1243.0 1242.5 1242.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.01693 (km/s)

0.80

0.85

0.90

0.95

1.00

Nor

mal

ised

Flu

x

J1243+4043

1397.5 1397.0 1396.5 1396.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.00263 (km/s)

0.996

0.998

1.000

1.002

1.004

Nor

mal

ised

Flu

x

J1243+1622N

1417.5 1417.0 1416.5 1416.0Heliocentric Frequency (MHz)

Figure F1. Continued from previous page.

© 0000 RAS, MNRAS 000, 000–000

4

-200 -100 0 100 200Velocity Relative to z = 0.00263 (km/s)

0.995

1.000

1.005N

orm

alis

ed F

lux

J1243+1622C

1417.5 1417.0 1416.5 1416.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.00263 (km/s)

0.995

1.000

1.005

Nor

mal

ised

Flu

x

J1243+1622S

1417.5 1417.0 1416.5 1416.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02460 (km/s)

0.98

0.99

1.00

1.01

1.02

Nor

mal

ised

Flu

x

J1254+0546

1387.0 1386.5 1386.0 1385.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02275 (km/s)

0.96

0.98

1.00

1.02

Nor

mal

ised

Flu

x

J1300-0121

1389.5 1389.0 1388.5 1388.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.22290 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1300+2830

1162.2 1162.0 1161.8 1161.6 1161.4 1161.2 1161.0 1160.8Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.26220 (km/s)

0.96

0.98

1.00

1.02N

orm

alis

ed F

lux

J1345+0347

1126.0 1125.8 1125.6 1125.4 1125.2 1125.0 1124.8 1124.6Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.14607 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1359+2935

1240.0 1239.5 1239.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.05422 (km/s)

0.98

0.99

1.00

1.01

1.02

Nor

mal

ised

Flu

x

J1422+0540

1348.0 1347.5 1347.0 1346.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.14680 (km/s)

0.7

0.8

0.9

1.0

1.1

Nor

mal

ised

Flu

x

J1438+1758

1239.0 1238.5 1238.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.37140 (km/s)

0.70

0.75

0.80

0.85

0.90

0.95

1.00

Nor

mal

ised

Flu

x

J1443+0214

1036.4 1036.2 1036.0 1035.8 1035.6 1035.4 1035.2Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.21980 (km/s)

0.96

0.98

1.00

1.02

Nor

mal

ised

Flu

x

J1457+0519

1165.2 1165.0 1164.8 1164.6 1164.4 1164.2 1164.0 1163.8Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.09094 (km/s)

0.94

0.96

0.98

1.00

1.02

1.04

1.06

Nor

mal

ised

Flu

x

J1525+4201

1302.5 1302.0 1301.5Heliocentric Frequency (MHz)

Figure F1. Continued from previous page.

© 0000 RAS, MNRAS 000, 000–000

5

-200 -100 0 100 200Velocity Relative to z = 0.02593 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1539+0534

1385.0 1384.5 1384.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.10070 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1551+0713

1291.0 1290.5 1290.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.04620 (km/s)

0.98

0.99

1.00

1.01

1.02

Nor

mal

ised

Flu

x

J1606+2717

1358.5 1358.0 1357.5 1357.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.36620 (km/s)

0.996

0.998

1.000

1.002

1.004

Nor

mal

ised

Flu

x

J1634+3900

1040.2 1040.0 1039.8 1039.6 1039.4 1039.2 1039.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07900 (km/s)

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Nor

mal

ised

Flu

x

J1639+1127

1317.0 1316.5 1316.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.03121 (km/s)

0.96

0.98

1.00

1.02N

orm

alis

ed F

lux

J1643+3547

1378.0 1377.5 1377.0 1376.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.03583 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J1648+2429

1372.0 1371.5 1371.0 1370.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.00008 (km/s)

0.995

1.000

1.005

1.010

1.015

Nor

mal

ised

Flu

x

J1748+7005

1421.0 1420.5 1420.0 1419.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.21110 (km/s)

0.95

1.00

1.05

Nor

mal

ised

Flu

x

J2240-0836

1173.6 1173.4 1173.2 1173.0 1172.8 1172.6 1172.4 1172.2Heliocentric Frequency (MHz)

Figure F1. Continued from previous page.

© 0000 RAS, MNRAS 000, 000–000

6

-200 -100 0 100 200Velocity Relative to z = 0.07750 (km/s)

0.96

0.98

1.00

1.02N

orm

alis

ed F

lux

J0820+0826

1319.0 1318.5 1318.0 1317.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02376 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J0919+3400E

1388.0 1387.5 1387.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.02376 (km/s)

0.85

0.90

0.95

1.00

1.05

1.10

1.15

Nor

mal

ised

Flu

x

J0919+3400W

1388.0 1387.5 1387.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.11240 (km/s)

0.96

0.98

1.00

1.02

Nor

mal

ised

Flu

x

J0947+1113

1277.5 1277.0 1276.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.07282 (km/s)

0.99

1.00

1.01

Nor

mal

ised

Flu

x

J0954+3733

1324.5 1324.0 1323.5Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.03346 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J0956+1614N

1375.0 1374.5 1374.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.03346 (km/s)

0.85

0.90

0.95

1.00

1.05

1.10

1.15

Nor

mal

ised

Flu

x

J0956+1614S

1375.0 1374.5 1374.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.23380 (km/s)

0.94

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1050+0002

1152.0 1151.8 1151.6 1151.4 1151.2 1151.0 1150.8 1150.6Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.04320 (km/s)

0.96

0.98

1.00

1.02

Nor

mal

ised

Flu

x

J1359+2708

1362.0 1361.5 1361.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.03029 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J1438+0920

1379.5 1379.0 1378.5 1378.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.09382 (km/s)

0.96

0.98

1.00

1.02

1.04

Nor

mal

ised

Flu

x

J1624+2328

1299.0 1298.5 1298.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.05815 (km/s)

0.98

0.99

1.00

1.01

1.02

Nor

mal

ised

Flu

x

J2242-0019

1343.0 1342.5 1342.0 1341.5Heliocentric Frequency (MHz)

Figure F2. Same as in Fig. F1 for the radio sources in the supplementary sample.

© 0000 RAS, MNRAS 000, 000–000

7

-200 -100 0 100 200Velocity Relative to z = 0.34235 (km/s)

0.95

1.00

1.05N

orm

alis

ed F

lux

J0846+0704

1058.8 1058.6 1058.4 1058.2 1058.0 1057.8 1057.6Heliocentric Frequency (MHz)

-400 -300 -200 -100 0Velocity Relative to z = 0.12390 (km/s)

0.4

0.5

0.6

0.7

0.8

0.9

1.0

Nor

mal

ised

Flu

x

J0942+0623

1265.5 1265.0 1264.5 1264.0Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.06326 (km/s)

0.90

0.95

1.00

1.05

1.10

Nor

mal

ised

Flu

x

J1214+2931

1336.5 1336.0 1335.5Heliocentric Frequency (MHz)

200 300 400 500 600Velocity Relative to z = 0.20153 (km/s)

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Nor

mal

ised

Flu

x

J2054+0041

1181.2 1181.0 1180.8 1180.6 1180.4 1180.2 1180.0 1179.8Heliocentric Frequency (MHz)

-200 -100 0 100 200Velocity Relative to z = 0.08723 (km/s)

0.98

0.99

1.00

1.01

1.02

Nor

mal

ised

Flu

x

J1643+2419

1307.0 1306.5 1306.0Heliocentric Frequency (MHz)

Figure F3. Same as in Fig. F1 for the radio sources in the miscellaneous sample.

© 0000 RAS, MNRAS 000, 000–000

8

27.0 26.0 25.0 24.0 23.0 22.0 21.0 0:41:20.0

42:3

0.0

-1:4

3:00

.030

.044

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

S

N

Q

G

CL = 0.0025

(a) J0041−0143

34.5 34.0 33.5 0:43:33.0 32.5 32.0 31.5 31.0

30.0

20.0

10.0

0:25

:00.

050

.040

.024

:30.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0005

(b) J0043+0024

14.5 14.0 13.5 1:34:13.0 12.5 12.0 11.5 11.0

10.0

0:04

:00.

050

.040

.030

.003

:20.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.001

(c) J0134+0003

44.0 43.0 42.0 41.0 8:02:40.0 39.0 38.0

40.0

30.0

20.0

10.0

16:0

1:00

.050

.040

.030

.000

:20.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00) Q

G

CL = 0.0005

(d) J0802+1601

08.0 07.0 06.0 8:17:05.0 04.0 03.0

20.0

10.0

19:5

9:00

.050

.040

.030

.020

.010

.058

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00) Q

G

CL = 0.0005

(e) J0817+1958

55.0 54.5 8:21:54.0 53.5 53.0 52.5

35.0

30.0

25.0

50:3

1:20

.015

.010

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0025

Q

G

(f) J0821+5031

01.0 8:50:00.0 59.0 58.0 57.0 56.0 49:55.0

51:0

9:00

.050

.040

.030

.020

.010

.008

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.002

G2

Q

G1

(g) J0849+5108

25.8 25.6 25.4 25.2 8:56:25.0 24.8 24.6 24.4 24.2 24.0

30.0

25.0

10:2

0:20

.015

.010

.005

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0005

(h) J0856+1020

35.5 35.0 34.5 9:11:34.0 33.5 33.0 32.5 32.0 31.5

40.0

30.0

20.0

10.0

19:5

8:00

.057

:50.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0005

(i) J0911+1958

16.0 10:15:15.0 14.0 13.0

10.0

16:3

8:00

.050

.040

.030

.020

.037

:10.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.002

Q

G

(j) J1015+1637

28.0 26.0 24.0 22.0 11:10:20.0

30.0

3:22

:00.

030

.021

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0015

W

Q

G

E

(k) J1110+0321

15.0 14.0 11:26:13.0 12.0 11.0

40.0

30.0

20.0

10.0

38:0

2:00

.001

:50.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.003

Q

G

(l) J1126+3802

05.0 04.5 04.0 03.5 11:33:03.0 02.5 02.0 01.5

10.0

0:16

:00.

050

.040

.030

.015

:20.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G2

G1

CL = 0.001

(m) J1133+0015

00.5 11:57:00.0 59.5 56:59.0 58.5

30.0

25.0

34:1

2:20

.015

.010

.005

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0005

Q

G

(n) J1156+3412

24.0 23.5 12:09:23.0 22.5 22.0 21.5

55.0

50.0

45.0

41:1

9:40

.035

.030

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.001

(o) J1209+4119

48.5 12:28:48.0 47.5 47.0 46.5

25.0

20.0

15.0

10.0

05.0

37:0

6:00

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.003

G

Q

(p) J1228+3706

Figure G1. SDSS r-band images (DSS image in case of J1749+7008) overlaid with the 1.4 GHz continuum contours of the QGPs in our primary sample. Ineach image the radio source is marked by ‘Q’ and the galaxy is marked by ‘G’. In case of the QGPs J0849+5108 and J1133+0015, there are two galaxiesaround the same radio sightline marked by ‘G1’ and ‘G2’. In case of multiple radio sightlines for the same QGP, the sightlines are marked by N, S, E andW (denoting north, south, east and west, respectively). The restoring beam of the continuum map is shown at the bottom left corner (the sizes are given inTable D1). The contour levels are plotted as CL × (−1,1,2,4,8,...) Jansky beam−1, where CL is given in each image. Solid lines correspond to positive valueswhile dashed lines correspond to negative values.

© 0000 RAS, MNRAS 000, 000–000

9

59.0 12:41:58.0 57.0 56.0

55.0

50.0

45.0

63:3

2:40

.035

.030

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0025

G

Q

(q) J1241+6332

12:44:00.0 58.0 56.0 54.0 43:52.0

45:0

0.0

30.0

40:4

4:00

.030

.043

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.003

G

Q

(r) J1243+4043

55.0 12:43:50.0 45.0 40.0

25:0

0.0

24:0

0.0

16:2

3:00

.022

:00.

021

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

S

N

Q

G

CL = 0.0025

(s) J1243+1622

23.2 23.0 22.8 22.6 22.4 22.2 12:54:22.0 21.8 21.6 21.4 21.2

30.0

25.0

5:46

:20.

015

.010

.005

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0015

(t) J1254+0546

29.5 13:00:29.0 28.5 28.0 27.5

25.0

20.0

15.0

10.0

05.0

28:3

0:00

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0005

(u) J1300+2830

52.0 51.5 51.0 50.5 13:00:50.0 49.5 49.0 48.5

21:2

0.0

30.0

40.0

50.0

-1:2

2:00

.010

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0005

(v) J1300−0121

29.6 29.4 29.2 13:45:29.0 28.8 28.6 28.4 28.2 28.0 27.8

30.0

25.0

3:47

:20.

015

.010

.005

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

GQ

CL = 0.0006

(w) J1345+0347

13:59:10.0 09.0 08.0 07.0 06.0

29:3

6:00

.050

.040

.030

.020

.035

:10.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.002

Q

G

(x) J1359+2935

55.0 54.5 54.0 53.5 14:22:53.0 52.5 52.0 51.5

40.0

30.0

20.0

10.0

5:40

:00.

039

:50.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0005

(y) J1422+0540

07.8 07.4 14:38:07.0 06.6 06.2 05.8

15.0

10.0

05.0

17:5

8:00

.055

.057

:50.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0008

G

Q

(z) J1438+1758

05.2 04.8 04.4 14:43:04.0 03.6

30.0

25.0

2:14

:20.

015

.010

.005

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.001

Q

(aa) J1443+0214

23.4 23.2 23.0 22.8 22.6 22.4 22.2 14:57:22.0 21.8 21.6

35.0

30.0

25.0

5:19

:20.

015

.010

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.001

(ab) J1457+0519

26.0 25.5 25.0 24.5 15:25:24.0 23.5 23.0 22.5 22.0 21.5 21.0

40.0

30.0

20.0

10.0

42:0

1:00

.000

:50.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0005

(ac) J1525+4201

08.0 07.0 06.0 15:39:05.0 04.0 03.0

20.0

10.0

5:35

:00.

050

.040

.030

.020

.010

.034

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.001

G

Q

(ad) J1539+0534

22.5 22.0 21.5 21.0 20.5 15:51:20.0

20.0

15.0

10.0

05.0

7:14

:00.

055

.050

.045

.013

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0003

(ae) J1551+0713

00.5 16:07:00.0 59.5 59.0 58.5 58.0 57.5 06:57.0 56.5

30.0

20.0

10.0

27:1

7:00

.050

.016

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0005

(af) J1606+2717

Figure G1. Continued from previous page.

© 0000 RAS, MNRAS 000, 000–000

10

04.0 03.5 16:34:03.0 02.5 02.0

15.0

10.0

05.0

39:0

0:00

.055

.038

:59:

50.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

QG

CL = 0.0008

(ag) J1634+3900

57.2 56.8 56.4 16:39:56.0 55.6

10.0

05.0

11:2

8:00

.055

.027

:50.

045

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.003

Q

G

(ah) J1639+1127

22.0 16:43:20.0 18.0 16.0 14.0 12.0 10.0

30.0

48:0

0.0

30.0

35:4

7:00

.030

.046

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.001

G

Q

(ai) J1643+3547

05.0 04.0 03.0 02.0 01.0 16:48:00.0

24:3

0:00

.050

.040

.030

.020

.010

.029

:00.

050

.028

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0008

(aj) J1648+2429

30.0 17:50:00.0 30.0 49:00.0

14:0

0.0

12:0

0.0

70:1

0:00

.008

:00.

006

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0025

Q

G

(ak) J1749+7008

14.4 14.2 14.0 13.8 13.6 13.4 13.2 22:40:13.0 12.8 12.6 12.4

15.0

20.0

25.0

-8:3

6:30

.035

.040

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0025

(al) J2240−0836

Figure G1. Continued from previous page.

© 0000 RAS, MNRAS 000, 000–000

11

16.8 16.4 8:20:16.0 15.6 15.2

25.0

20.0

15.0

10.0

05.0

8:26

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0008

(a) J0820+0826

21.0 9:19:20.0 19.0 18.0 17.0 16.0 15.0 14.0

01:0

0.0

40.0

20.0

34:0

0:00

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0015

WE

G

(b) J0919+3400

46.8 46.6 46.4 46.2 9:47:46.0 45.8 45.6 45.4 45.2 45.0

05.0

11:1

4:00

.055

.050

.045

.013

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q G

CL = 0.0005

(c) J0947+1113

40.0 38.0 36.0 34.0 32.0 9:54:30.0 28.0 26.0

35:0

0.0

30.0

37:3

4:00

.030

.033

:00.

032

:30.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.002

Q

G

(d) J0954+3733

06.0 05.5 05.0 04.5 9:56:04.0 03.5 03.0 02.5 02.0

50.0

40.0

30.0

20.0

10.0

16:1

4:00

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.003

S

N

G

(e) J0956+1614

54.8 54.6 54.4 54.2 10:50:54.0 53.8 53.6 53.4 53.2 53.0

25.0

20.0

15.0

10.0

05.0

0:02

:00.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.0008

(f) J1050+0002

49.0 48.5 13:59:48.0 47.5 47.0

40.0

35.0

27:0

8:30

.025

.020

.015

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.001

(g) J1359+2708

12.0 11.0 14:38:10.0 09.0 08.0 07.0

21:0

0.0

50.0

40.0

30.0

20.0

10.0

9:20

:00.

050

.019

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.001

(h) J1438+0920

36.0 35.5 35.0 34.5 16:24:34.0 33.5 33.0 32.5 32.0

30.0

20.0

10.0

23:2

9:00

.050

.028

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.001

(i) J1623+2329

22:42:50.0 49.0 48.0 47.0 46.0 45.0

19:0

0.0

20.0

40.0

-0:2

0:00

.020

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

Q

G

CL = 0.001

(j) J2242−0019

Figure G2. Same as in Fig. G1 for the sources in the supplementary sample.

© 0000 RAS, MNRAS 000, 000–000

12

03.0 02.0 01.0 8:46:00.0 59.0 45:58.0

05:0

0.0

50.0

40.0

30.0

20.0

10.0

7:04

:00.

050

.003

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0025

Q

G

(a) J0846+0704

22.8 22.4 9:42:22.0 21.6 21.2

50.0

45.0

6:23

:40.

035

.030

.025

.0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0025

Q

G

(b) J0942+0623

12:14:20.0 19.5 19.0 18.5 18.0 17.5 17.0 16.5 16.0

10.0

29:3

2:00

.050

.040

.030

.031

:20.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0005

(c) J1214+2931

32.0 31.0 16:43:30.0 29.0

20.0

10.0

24:2

0:00

.050

.040

.019

:30.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

CL = 0.0015

Q

G

(d) J1643+2419

50.6 50.4 50.2 20:54:50.0 49.8 49.6 49.4 49.2 49.0 48.8

05.0

0:42

:00.

055

.050

.045

.041

:40.

0

Right Ascension (J2000)

Dec

linat

ion

(J20

00)

G

Q

CL = 0.0008

(e) J2054+0041

Figure G3. Same as in Fig. G1 for the sources in the miscellaneous sample.

© 0000 RAS, MNRAS 000, 000–000