A nulling wide field imager for exoplanets detection and general astrophysis

Olivier Guyon, F. Roddier

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We present a solution to obtain a high-resolution image of a wide with the central source removed by destructive interference. The wide-field image is created by aperture synthesis with a rotating sparse array of telescopes in space. Nulling of the central source is achieved using a phase-mask coronagraph. The full (u, v) plane coverage delivered by the 60 m, six 3-meter telescope array is particularly well-suited for the detection and characterization of exoplanets in the infrared (DARWIN and Terrestrial Planet Finder (TPF) missions) as well as for other generic science observations. Detection (S/N = 10) of an Earth-like planet is achieved in 10 hours with a 1 μm bandwidth at 10 μm.

Original languageEnglish (US)
Pages (from-to)379-395
Number of pages17
JournalAstronomy and Astrophysics
Volume391
Issue number1
StatePublished - Aug 2002
Externally publishedYes

Fingerprint

planet detection
planet
telescopes
terrestrial planets
coronagraphs
extrasolar planets
image resolution
planets
masks
apertures
bandwidth
interference
high resolution
synthesis
detection
science

Keywords

  • Instrumentation: high angular resolution
  • Techniques: interferometric

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

A nulling wide field imager for exoplanets detection and general astrophysis. / Guyon, Olivier; Roddier, F.

In: Astronomy and Astrophysics, Vol. 391, No. 1, 08.2002, p. 379-395.

Research output: Contribution to journalArticle

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