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Table 3

Identified photospheric lines in the HST/COS spectrum of H1504+65.

Wavelength/Å Ion Transition

1134.25, 1134.30 C iv 4d–9f
1135.50 C iv 4f–9g
1146.75, 1146.83, 1477.03 O vi 4d–5p
1162.24, 1162.67 Ne viii 5d–6f
1164.54, 1164.76 Ne viii 5f–6g
1164.88 Ne viii 5g–6h
1168.85, 1168.99 C iv 3d–4f
1171.12, 1172.00 O vi 4p–5s
1171.60:a Ne viii 6h 2Ho8i 2I
1184.59, 1184.77 C iv 4p–8d
1190.80, 1190.84 O vi 5s–7p
1198.55, 1198.59 C iv 3d–4p
1210.61:, 1210.65: C iv 4s–7p
1230.04, 1230.52 C iv 3p–4s
1261.42, 1261.70, 1261.80 O vi 5p–7d
1270.3:b Ne vi 2s2p 2Fo−2s22G
1290.06, 1290.18, 1290.21 O vi 5d–7f
1291.81, 1291.84 O vi 5f–7g
1291.90, 1291.92 O vi 5g–7h
1292.00, 1292.02 O vi 5g–7f
1292.64, 1292.67, 1293.04 O vi 5f–7d
1298.e O vi 6–11
1302.41, 1302.46, 1302.56 O vi 5d–7p
1303.72, 1303.84 O vi 5p–7s
1315.62, 1315.85 C iv 4p–7d
1319.78 Ne vii 2p 1Po2p2 3P
1344.18:, 1344.42: C iv 4p–7s
1351.21, 1351.29 C iv 4d–7f
1352.97 C iv 4f–7g
1353.43: C iv 4f–7d
1358.42:, 1358.47:, 1358.50: C iv 4d–7p
1371.29 O v 2s 1Po2p 1D
1402.38:, 1402.47:, 1402.52: O vi 6p–10d
1422.65, 1422.79, 1422.81 O vi 6d–10f
1423.61, 1423.65 O vi 6g–10h
1423.90, 1423.92 O vi 6h–10i
1440.30, 1440.38 C iv 4s–6p
1548.20, 1550.77 C iv 2s–2p
1560.2:, 1563.9:, 1572.0:b Ne vii 5f 3Fo6g 3G
1585.81:, 1586.11:, 1586.14:c C iv 4p–6d
1637.54, 1637.65 C iv 4d–6f
1638.73, 1638.91, 1638.94 O vi 6d–9f
1639.85, 1639.91 O vi 6f–9g
1640.10 C iv 4f–6g
1640.32, 1640.36 O vi 6h–9i
1640.97, 1641.09, 1641.10 O vi 6f–9g
1645.06:, 1645.59, 1654.01:d,
1657.16:, 1666.24, 1667.82,
1679.67 Ne vi 3s 4Po−3p 4P
1653.63, 1653.99 C iv 4p–6s
1654.46, 1654.57 C iv 4d–6p

Notes. Colons denote uncertain detections;

(a)

blend with O vi;

(b)

see text;

(c)

at end of spectral segment;

(d)

blend with C iv;

(e)

weak, broad depression; not included in model.

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