Direct and interferometric imaging approaches for detecting earth-like extrasolar planets

Details Direct and interferometric imaging approaches for detecting earth-like extrasolar planets Direct and interferometric imaging approaches for detecting earth-like extrasolar planets

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aiaa.meett....d&link_type=abstract

AIAA, Aerospace Sciences Meeting, 26th, Reno, NV, Jan. 11-14, 1988. 6 p.

Astronomy and Astrophysics

Astronomy

Extrasolar Planets, Imaging Techniques, Moire Interferometry, Stellar Envelopes, Terrestrial Planets, Accretion Disks, Diffraction Patterns, Infrared Astronomy, Stellar Evolution, Visual Observation

Scientific paper

This paper discusses functional requirements of space-based observational systems with sufficient sensitivity, resolution, and dynamic range to image earth-like extrasolar planets within a search radius of 10 parsecs from the sun. Both direct and interferometric systems operating at visible and infrared wavelengths are evaluated, and the methods used to establish the system tolerances are presented. Due to the more favorable star/planet contrast ratio in the infrared, optical tolerance requirements are less stringent than in the visible. However, reduction of thermal radiation from the telescope requires cooling of the primary optics. Other tradeoffs between various approaches are enumerated.

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