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RefPlanets: Search for reflected light from extra-solar planets with SPHERE/ZIMPOL

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Academic year: 2021

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Figure

Fig. 1. Panel a: diagram showing the essential planes and angles needed to characterise the reflected light intensity: the orbital phase of the planet φ, the inclination of the orbital plane with respect to the sky plane i and the scattering angle α
Fig. 2. Apparent positions of a model planet on a circular 80 ◦ inclined orbit with r = 1 AU around α Cen A in a typical coronagraphic intensity (left) and polarisation frame (right) at ten-day intervals
Table 1. Summary of all RefPlanets observations completed until the end of 2018.
Fig. 3. 1σ radial contrast levels for the data shown after the differ- differ-ent major data-reduction steps – basic PDI by ZIMPOL, correction of the polarimetric beam shift, and subtraction of instrument polarisation (IP) – for the polarised intensity Q a
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