Physical processes in comets

Details Physical processes in comets Physical processes in comets

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988plas.rept...99n&link_type=abstract

In NASA, Washington, Reports of Planetary Astronomy, p 99-100 (SEE N89-16624 08-89)

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Comets, Light Scattering, Orbits, Chemical Composition, Data Reduction, Dust, Infrared Radiation, Sun

Scientific paper

When this program began in 1975 only limited photometry had been carried out on comets at any wavelength. Program goals were to observe many comets, including faint periodic comets, at a range of heliocentric distances in order to begin to understand the range of behavior among comets and in a given comet during its approach and departure from the sun. Then a study of the continuum of scattered light from dust was added. More recently the value of joint team observations in visible and infrared light has been recognized and utilized as often as possible. All 1978 to 1982 data was reanalyzed and 1983 to 1986 data analyzed in the framwork of the post-Halley paradigm, covering 25 comets in all. Four observing runs (June, July, Sept., and Jan.) with Hanner produced excellent results on Wilson, Bradfield, P/Klemola, and P/Borrelly and lesser data on other objects, including the last reported IR photometry of P/Halley. The Wilson and Halley data have been reduced.

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