Abstract
We describe a new series of band-limited image masks for coronagraphy that are insensitive to tip-tilt errors and other low spatial frequency optical aberrations. For a modest cost in throughput, these masks would allow the Terrestrial Planet Finder Coronagraph (TPF-C) to operate with a pointing accuracy no better than that of the Hubble Space Telescope. We also provide eighth-order notch filter masks that offer the same robustness to pointing errors combined with more manageable construction tolerances: binary masks and sampled graded masks with moderate optical density requirements.
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