Table 2
Best-fit results for the residual halo.
| Filter | Name | ρ (″) | f | Eenc | ||
|
|
||||||
| NB_1.64 | RS Pup | 0.46 ± 0.01 | 0.58 ± 0.01 | 0.327 | ||
| HD 74417 | 0.43 ± 0.01 | 0.43 ± 0.01 | 0.452 | |||
| Achernar | 0.49 ± 0.01 | 1.00 ± 0.01 | 0.374 | |||
| δ Phe | 0.46 ± 0.01 | 0.97 ± 0.01 | 0.376 | |||
|
|
||||||
| IB_2.18 | RS Pup | 0.56 ± 0.01 | 0.45 ± 0.01 | 0.417 | ||
| HD 74417 | 0.50 ± 0.01 | 0.34 ± 0.01 | 0.517 | |||
|
|
||||||
| NB_2.17 | Achernar | 0.52 ± 0.01 | 0.59 ± 0.01 | 0.495 | ||
| δ Phe | 0.54 ± 0.01 | 0.61 ± 0.01 | 0.505 | |||
Notes. ρ is the FWHM and f is a
parameter proportional to the flux of the halo normalized to the total flux.
Eenc represents the flux in the central core (i.e.
within 1.22λ/D) to the total flux. Note: The
fitted Ihalo analytical function is not normalized to
f, i.e. 
.
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