Issue |
A&A
Volume 391, Number 1, August III 2002
|
|
---|---|---|
Page(s) | 379 - 395 | |
Section | Numerical methods and codes | |
DOI | https://doi.org/10.1051/0004-6361:20020712 | |
Published online | 29 July 2002 |
A nulling wide field imager for exoplanets detection and general astrophysics
1
Institute for Astronomy, University of Hawaii, 640 N. A'ohoku Place, Hilo, HI 96720, USA
2
Université Pierre et Marie Curie, Paris 6, 4 Place Jussieu, 75005 Paris, France
Corresponding author: O. Guyon, guyon@ifa.hawaii.edu
Received:
19
February
2002
Accepted:
6
May
2002
We present a solution to obtain a high-resolution image of a wide field 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 plane coverage delivered by the 60 m, six 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 (
) of an Earth-like planet is achieved in 10 hours with a
m bandwidth at
m.
Key words: techniques: interferometric / instrumentation: high angular resolution
© ESO, 2002
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