Table 3
Summary of variability properties of the centroid velocity ⟨ v ⟩ and EW for 12 spectral lines of HD 188209 available in the HERMES data, spanning 1800 d.
| Spectral | Laboratory | Colour | Minimum | Maximum | Range | Average | Minimum | Maximum | Range |
| Line | Wavelength (Å)1 | Code | ⟨ v ⟩ (km s-1) | ⟨ v ⟩ (km s-1) | ⟨ v ⟩ (km s-1) | ⟨ v ⟩ (km s-1) | EW (Å) | EW (Å) | EW (Å) |
|
|
|||||||||
| Hα | 6562.801 | light green | –292.4 | +439.6 | 732.0 | –85.6 | –0.163 | 0.694 | 0.857 |
| Hγ | 4340.464 | light blue | –42.4 | –23.9 | 18.5 | –34.4 | 1.353 | 1.553 | 0.201 |
| Hβ | 4861.325 | black | –41.4 | –17.2 | 24.2 | –31.7 | 1.249 | 1.631 | 0.382 |
| Si iii | 4567.841 | purple | –24.1 | +1.7 | 25.8 | –14.4 | 0.094 | 0.137 | 0.044 |
| He i | 4922.931 | cyan | –18.9 | +1.9 | 20.8 | –10.6 | 0.495 | 0.589 | 0.094 |
| He i | 5875.599 | grey | –21.6 | +5.4 | 27.1 | –10.2 | 0.987 | 1.378 | 0.391 |
| He i | 5015.678 | pink | –18.8 | +4.3 | 23.1 | –10.0 | 0.328 | 0.391 | 0.063 |
| He i | 4713.139 | dark blue | –17.5 | +0.2 | 17.7 | –9.4 | 0.325 | 0.410 | 0.085 |
| He ii | 5410.53 | yellow | –16.2 | –1.3 | 14.9 | –9.2 | 0.363 | 0.398 | 0.035 |
| He ii | 4541.591 | green | –13.3 | +3.9 | 17.3 | –7.6 | 0.220 | 0.311 | 0.091 |
| C iv | 5811.97 | orange | –11.9 | +4.4 | 16.3 | –5.5 | 0.085 | 0.107 | 0.022 |
| He ii | 4685.71 | red | +8.8 | +43.7 | 34.8 | 20.8 | 0.187 | 0.253 | 0.066 |
Notes. Systematic uncertainties in the average values of ⟨ v ⟩ are different for the different spectral lines and may amount to several km s-1 per spectral line. This is typically an order of magnitude larger than the statistical uncertainties for each of the ⟨ v ⟩-values for a fixed spectral line.
Retrieved from the Atomic Line List available at http://www.pa.uky.edu/~peter/newpage/.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.