Computer Science – Performance
Scientific paper
Sep 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...43..293b&link_type=abstract
Icarus, vol. 43, Sept. 1980, p. 293-301.
Computer Science
Performance
13
Astrometry, Extrasolar Planets, Planetary Radiation, Planetary Systems, Thermal Radiation, Late Stars, Main Sequence Stars, Planetary Rotation, Planetary Temperature, Telescopes, Planets, Thermal Properties, Radiation, Infrared, Wavelengths, Energy, Source, Interior, Telescope Methods, Theoretical Studies, Astrometry, Techniques, Equipment, Calculations, Zodical Light, Temperature
Scientific paper
There is currently no unambiguous observational evidence for the existence of other planetary systems. One possible way to detect and study such systems is infrared observations of continuum blackbody radiation from planets revolving around other stars. It is shown that the effective temperature of large planets revolving around mid- to late-spectral-type main-sequences stars is set by energy sources internal to the planet rather than by equilibrium with the radiation field of the central star, making them easier to detect than had been previously thought. Consideration is given to the two major observational constraints on detecting planetary companions to nearby stars, namely, angular resolution and sensitivity. A comparison is made between the performance of an ambient (T 200 K), single-aperture telescope and a cooled interferometer. In each case the required aperture (baseline) is large (in the 10-m class), but consistent with Shuttle launch capability.
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