Isophot Observations Of Comet Hale-Bopp

Details Isophot Observations Of Comet Hale-Bopp Isophot Observations Of Comet Hale-Bopp

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997em%26p...78..299p&link_type=abstract

Earth, Moon, and Planets, v. 78, Issue 1/3, p. 299-304 (1997).

Physics

2

Comet Hale-Bopp, Isophot, Spectral Energy Distribution, Dust Temperatures

Scientific paper

Comet Hale-Bopp has been observed five times with ISOPHOT, the photometer on board the Infrared Space Observatory (ISO), four times before its perihelion passage at heliocentric distances of 4.92, 4.58, 2.93 and 2.81 AU, and at 3.91 AU postperihelion. Each time, multi-filter photometry covering the range between 3.6 175 μm with eight to ten filters was performed to sample the spectral energy distribution of the comet. These measurements were used to determine dust temperatures for the cometary coma. The evolution of the strength of the silicate feature can be followed in the data as well as the flux deficit at longer wavelengths.

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