The nucleus of comet P/Arend-Rigaux

Details The nucleus of comet P/Arend-Rigaux The nucleus of comet P/Arend-Rigaux

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94..169v&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 94, July 1987, p. 169-173.

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17

Astronomical Photometry, Comet Nuclei, Infrared Photometry, Visible Spectrum, Astronomical Models, Heat Flux, Radiant Flux Density, Thermal Emission, Comets, Comet Nuclei, Arend-Rigaux, Optical Properties, Photometry, Infrared, Visible Light, Wavelengths, Color, Comparisons, D Asteroids, Periodic Comets, Flux, Magnitude, Models, Albedo, Radius, Procedure, Earth-Based Observations, Telescope Methods, Thermal Properties, Comae, Emissions, Spectra, Parameters, Size, Shape, Surface, Ice

Scientific paper

The authors report simultaneous broadband visual and infrared photometry of comet P/Arend-Rigaux. Its VJHK colors are similar to other periodic comets and the class D asteroids. The visual flux decreased by 0.5 mag within 2 hr, while the thermal flux at 10 μm continued to decrease by 0.7 mag over 3 hr. These observations are consistent with thermal models of a nucleus with a geometric albedo of 0.03 and equivalent radii of 5.1 and 3.8 km.

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