Abstract
An ideal coronagraph with a band-limited image mask can efficiently image off-axis sources while removing identically all of the light from an on-axis source. However, strict mask construction tolerances limit the utility of this technique for directly imaging extrasolar terrestrial planets. We present a variation on the basic band-limited mask design - a family of "notch-filter" masks - that mitigates this problem. These robust and trivially achromatic masks can be easily manufactured by cutting holes in opaque material.
Original language | English (US) |
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Pages (from-to) | 617-626 |
Number of pages | 10 |
Journal | Astrophysical Journal |
Volume | 594 |
Issue number | 1 I |
DOIs | |
State | Published - Sep 1 2003 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
Keywords
- Circumstellar matter
- Instrumentation: Adaptive optics
- Planetary systems