Infrared interferometers for observing extra-solar planets

Details Infrared interferometers for observing extra-solar planets Infrared interferometers for observing extra-solar planets

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997abos.conf..367f&link_type=abstract

Conference Paper, Astronomical and Biochemical Origins and the Search for Life in the Universe, IAU Colloquium 161, Publisher: B

Astronomy and Astrophysics

Astronomy

Extrasolar Planets, Infrared Interferometers, Coronagraphs, Michelson Interferometers, Spaceborne Astronomy, Space Observations (From Earth), Earth (Planet), Angular Resolution

Scientific paper

Concepts are outlined for ground- and space-based interferometers for observing nearby extrasolar Earth-like planets (in the 8-20-micron range). The collecting elements are special coronagraphs, two of which constitute part of a Michelson interferometer. Performance characteristics are compared to those inferred for several competing systems. One conclusion is that one could construct a ground-based instrument that seems superior to the Keck interferometer system ('superior' meaning up to a ten-fold increase in angular resolution in each of two orthogonal directions, up to a ten-fold increase in sensitivity, and a ten-fold lower cost). Space-based instruments of comparable/superior(?) performance to the Oases-1 and -2 systems might also be constructed.

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