Table 3
Standard stars.
| Source | P | φ | | model−data | |
| [%] | [deg] | [%] | |
|
|
|||
| RCra88 | 1.8 | 95 | (0.2 ± 0.2) (Q & U) |
| WD 1344 | 0 | − | (0.3 ± 0.2)(Q) |
| WD 2039−202 | 0 | − | (0.3 ± 0.2)(Q) |
| HD 109055 | 0 | − | (0.3 ± 0.2)(Q) |
Notes. Reference polarizations of the standard stars and systematic deviation of the data from the model. For RCra88 the data allowed us to compare both parameters Q and U. For all other standards only the differential flux of the orthogonal channels (equivalent to Q) for different instrumental setups could be tested.
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