Open Access
Table 4.
IRDIS observing modes and high-level specifications.
| Mode | Science case | Wavelength coverage and resolution | Contrast |
|---|---|---|---|
| DBI | Companions detection | Y, J, H, Ks | 10−4 at 0.1″ |
| Dual-band (R = 30) | 10−5 at 0.5″ | ||
| DPI | Planet formation | Y, J, H, Ks | 10−4 at 0.1″ |
| Broad-band (R = 5) | 10−5 at 0.5″ | ||
| for 30% polarized circumstellar source | |||
| CI | Multi-purpose | Y, J, H, Ks | 10−4 at 0.1″ |
| Narrow-band (R = 70 − 80), broad-band (R = 5) | 3 × 10−4 at 0.5″ | ||
| LSS | Companions characterization | LRS: YJHKs (R = 50) | 10−4 at 0.3″ |
| MRS: YJH (R = 350) | 10−5 at 0.5″ | ||
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