Extrasolar-system planet detection problem: radiometric signal and resolution considerations

Details Extrasolar-system planet detection problem: radiometric signal and resolution considerations Extrasolar-system planet detection problem: radiometric signal and resolution considerations

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2744..271p&link_type=abstract

Proc. SPIE Vol. 2744, p. 271-277, Infrared Technology and Applications XXII, Bjorn F. Andresen; Marija S. Scholl; Eds.

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Scientific paper

Blackbody radiation laws for photons and the simple power transfer equation are used to calculate the number of photons originating at a representative nearby solar system and incident on a unit area collecting aperture near Earth. The signal due to the planet is prohibitively small in comparison with that due to a star. The radiometric signal- to-noise ratio of 10-5 necessitates an indirect, non-imaging detection scheme, such as interferometry, that searches for a single spatial frequency corresponding to the star-planet vector distance.

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