A new approach for the numerical calculation of diffraction patterns using starshades

Open Access

Fig. 12

2D representations of the S/N υ(ξ) for 128 × 128 PSFs in a field of 025 × 0.25 arcsec for the petal occulter (left panels) and the apodized occulter (right panels) for the planet-to-star ratio ϵ = 10⁻¹² (top panels) and ϵ = 10⁻¹⁰ (bottom panels). These values are to be multiplied by the square root of the number of photons for the star, $\sqrt{N_{*}}$ $\[\sqrt{N_*}\]$ .

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.