Wavelength dependence of IRAS asteroid diameters and albedos

Details Wavelength dependence of IRAS asteroid diameters and albedos Wavelength dependence of IRAS asteroid diameters and albedos

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...78..355l&link_type=abstract

Icarus (ISSN 0019-1035), vol. 78, April 1989, p. 355-362. Research supported by USAF.

Astronomy and Astrophysics

Astronomy

10

Albedo, Asteroids, Astrometry, Infrared Reflection, Astronomical Models, Calibrating, Diameters, Infrared Astronomy Satellite, Occultation, Sky Surveys (Astronomy), Wavelengths, Asteroids, Wavelengths, Diameters, Albedo, Satellite Observations, Iras Satellite, Physical Properties, Optical Properties, Models, Ceres, Pallas, Vesta, Earth-Based Observations, Comparisons, Surface, Roughness

Scientific paper

The 1986 IRAS Asteroid and Comet Survey 'Final Data Product' compilation of albedos and diameters contains a systematic model diameter variation with wavelength for even the brightest asteroids; when averaged over the three bandpasses, this variation can lead to an overestimation of diameters of the order of 5-10 percent. No satisfactory determination has yet been made of the cause of wavelength dependence in the IRAS asteroid data; the present discussion aims only to call attention to this problem, so that data base users will take its limitations into account.

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