Polarization studies of Comet Austin

Details Polarization studies of Comet Austin Polarization studies of Comet Austin

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..384e&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 2, Sept. 15, 1992, p. 384-386.

Other

11

Astronomical Polarimetry, Austin Comet, Halley'S Comet, Linear Polarization, Charge Coupled Devices, Particle Size Distribution, Solar System

Scientific paper

Comet Austin was observed during 1990 May and June when its phase angle changed from 26 to 8 deg. The degree of linear polarization was seen to change from positive to negative polarizations at a phase angle of 20.5 deg, with a rate of change of 0.19 percent per degree in the R waveband. This phase dependence of polarization is similar to that found for other comets, except that the dust grains giving rise to the polarization have a higher albedo than those found in other comets at similar distances from the sun. No unusual activity in the form of jets or shells is seen in the polarization images.

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