Open Access
Table 3
Measured emission lines from GJ 486 with HST/COS.
| Grating | Total exposure time | Line | Line centers(a) | log10(Surface flux)(b) | log10(T)(a) | ||
|---|---|---|---|---|---|---|---|
| (s) | (Å) | (erg cm−2 s−1) | |||||
| FUV | G130M | 7610 | C III (*) | 1174.933, 1175.263, 1175.711, 1175.987, 1176.37 | 3.8 ± 0.07 | 4.9 | |
| Si III (*) | 1206.555 | 3.04 ± 0.08 | 4.8 | ||||
| N V (*) | 1238.821, 1242.804 | 3.27 ± 0.07 | 5.3 | ||||
| Si II (*) | 1264.738 | 2.58 ± 0.24 | 4.5 | ||||
| C II (*) | 1334.532, 1335.707 | 3.71 ± 0.06 | 4.6 | ||||
| G160M | 6753 | O V | 1371.296 | 1.20 ± 0.51 | 5.4 | ||
| Si IV (*) | 1393.755, 1402.772 | 2.52 ± 0.12 | 4.9 | ||||
| O IV | 1401.163 | 1.41 ± 0.54 | 5.1 | ||||
| C IV (*) | 1548.187, 1550.775 | 3.29 ± 0.07 | 5.1 | ||||
| He II | 1640.474 | 2.74 ± 0.15 | 4.9 | ||||
| Al II | 1670.788 | 2.6 ± 0.23 | 4.5 | ||||
| NUV | |||||||
| G230L | 552 | Mg II (*) | 2796.350, 2803.531 | 4.53 ± 0.08 | 4.2 | ||
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