Abstract

In a recent paper, we introduced a class of shaped pupil masks, called spiderweb masks, that produce point-spread functions having annular dark zones. With such masks, a single image can be used to probe a star for extrasolar planets. In this paper, we introduce a new class of shaped pupil masks that also provide annular dark zones. We call these masks star-shaped masks. Given any circularly symmetric apodization function, we show how to construct a corresponding star-shaped mask that has the same point-spread function (out to any given outer working angle) as obtained by the apodization.

Original languageEnglish (US)
Pages (from-to)686-694
Number of pages9
JournalAstrophysical Journal
Volume599
Issue number1 I
DOIs
StatePublished - Dec 10 2003

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Instrumentation: miscellaneous
  • Planetary systems

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