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Table 1
Parameters of the spectrographs used.
| R (Hα) ≈ | Spectrograph | PMD | |
|---|---|---|---|
| (m) | |||
| CFHT | 65 000 | ESPaDOnS | 3.6 |
| APO | 31 500 | ARCES | 3.5 |
| HCT | 30 000 | HESP | 2.01 |
| TSAO | 15 500 | èchelle | 1.0 |
| OO | 12 500 | slit | 2.0 |
| TCO | 12 000 | èchelle | 0.8 |
| BO | 600 & 5 200 | LHIRES3 | 0.235 |
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