Open Access
Table 1
Numerical values of the instrumental parameters discussed in the main text, used for scaling the TLUSTY spectrum before convolution, noise, and stray light computation.
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Mirror reflections | nmirror | 9 | |
| Main disperser efficiency | TD | 0.67 | |
| Cross-disperser transmission | η2Cd | 0.9 | |
| M1 aperture area | A | 129 | cm2 |
| M2 obscuration | Ob | 0.1 | |
| Pointing jitter loss | Pjitter | 0.33 | |
| Fine guidance sensor loss | RFGS | 0.92 | |
| M1 stray light coefficient | γM1 | 170 | ph/Å/s |
| Baffle stray light coefficient | γbaf | 1 | ph/bin/s |
| Internal stray light coefficient | γint | 0.03 | |
| Spatial extracted pixels | n | 11 | pix |
| Read noise | RN | 1.6 | e−/pix |
| Dark current | D | 0.07 | e−/pix/s |
| Relative gain variability | GV | 0.0005 |
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.