POLARIZATION STUDIES OF COMET AUSTIN

被引:19
作者
EATON, N
SCARROTT, SM
GLEDHILL, TM
机构
[1] University of Durham, Department of Physics, Science Laboratories, South Road, Durham
关键词
POLARIZATION; COMETS INDIVIDUAL AUSTIN;
D O I
10.1093/mnras/258.2.384
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Comet Austin (1989c1) was observed during 1990 May and June when its phase angle changed from 26-degrees to 8-degrees. The degree of linear polarization was seen to change from positive to negative polarizations at a phase angle of 20.5-degrees, with a rate of change of 0.19 per cent 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.
引用
收藏
页码:384 / 386
页数:3
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