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Table 4
Unidentified photospheric lines in the HST/COS spectrum of H1504+65 and possible identifications.
| Wavelength/Å | Possible id. | Remark |
|
|
||
| 1148.6 | Si vi | |
| 1159.3 | Ca x | |
| 1168.5 | broad dip in C iv wing | |
| 1170.3 | strong | |
| 1196.7 | ||
| 1207.5 | ||
| 1223.0 | Si vii | |
| 1225.2 | ||
| 1225.9 | ||
| 1228.3 | Si vii | |
| 1228.7 | Si vii | |
| 1243.1 | Si vii | |
| 1246.4 | ||
| 1270.3 | Ne vi | strong |
| 1271.6 | Ne vi | |
| 1307.6 | a | |
| 1316.9 | Ne vi | |
| 1317.7 | Ne vi | |
| 1324.5 | strong | |
| 1325.8 | strong | |
| 1332.0 | Na vii | strong |
| 1333.4 | strong | |
| 1334.8 | ||
| 1366.4 | Si vii | strongb |
| 1383.4 | ||
| 1386.7 | ||
| 1401.6 | Ne vii | |
| 1416.3 | Ne vii | |
| 1429.0 | strongc | |
| 1434.3 | Ne vii | |
| 1435.8 | ||
| 1437.6 | strong | |
| 1439.0 | Ne vii | |
| 1443.6 | Ne vii | |
| 1444.0 | ||
| 1445.5 | Ne vii | |
| 1449–1452 | strong broad dip, many lines | |
| 1454.8 | ||
| 1456–1459 | strong broad dip, many lines | |
| 1461.2 | strongc | |
| 1472.9 | Ne vii | |
| 1475.3 | Mg vii | |
| 1480.20 | strongb | |
| 1484.9 | Ne vii | |
| 1486.75 | Ne vii | |
| 1488.2 | Mg vii, Ne vii | |
| 1491.0 | Ne vi | c |
| 1495.3 | Ne vii | |
| 1503.6 | Ca x | |
| 1538.7 | Ne vi | |
| 1543.6 | Ne vi | |
| 1554.5 | broad dip | |
| 1619.4 | Ne vii | |
Notes.
(a)
Also present in PG 1159−035 and hot H-rich central stars;
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