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Table 2.
List of all components in ZIMPOL.
| Abbr. | Name | r i e p | Comment |
|---|---|---|---|
| ZIMPOL common path | |||
| – | Shutter | Cut transfer smear | |
| PCOMP | Polarization compensator | r i p | Compensate DROT polarization |
| FW0 | Filter wheel 0 | e | Color filters, NDs, pol. calibration |
| HWPZ | Half wave plate ZIMPOL | r i p | Rotate polarization, calibrations |
| MOD | Modulator (FLC) and 0-HWP | i p | pol. modulation, blocking filter (BF) |
| BS | Polarization beam splitter | With camera lens “a” | |
| ZIMPOL arms 1 and 2 | |||
| FW1/2 | Filter wheels 1,2 | e | Color filters, pupil lens in FW2 |
| b1/2 | Camera lenses “b” | ||
| TM1/2 | Tip-mirrors 1,2 | Mask illumination | |
| TTM1/2 | Tip-tilt mirrors 1,2 | Dithering, offsets | |
| f1/2 | Field lenses 1,2 | Mask illumination | |
| CCD1/2 | Detectors 1,2 | pol. demodulation | |
Notes. “Short” gives abbreviations as used in this paper. Columns 3–6 indicate whether the components are rotating (r), insertable (i), exchangeable (e), or/and only inserted for visual polarimetry (p).
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