Photometry of Comet p/ Halley from 40-MICRONS to 160-MICRONS

Details Photometry of Comet p/ Halley from 40-MICRONS to 160-MICRONS Photometry of Comet p/ Halley from 40-MICRONS to 160-MICRONS

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..632c&link_type=abstract

Astronomy and Astrophysics, Vol.187, NO. 1+2/NOV, P. 632, 1987

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

Far infrared photometry of comet P/Halley was obtained from NASA's Kuiper Airborne Observatory. A preliminary analysis of the observations shows the following results: (1) The brightness of the comet decreased by nearly a factor of two on the second day, in phase with the variability observed in blue light by IUE during the same time period. (2) The energy distribution varied marginally with a shallower (cooler) spectrum on the second day. (3) Observations centered 30" and 60" away from the nuclear condensation show lower 50-100 μm color temperatures on both dates. This is consistent with spacecraft observations which indicate a higher proportion of large particles away from the nucleus.

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