Other
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000p%26ss...48.1005k&link_type=abstract
Planetary and Space Science, Volume 48, Issue 10, p. 1005-1009.
Other
14
Scientific paper
Results of CCD imaging and aperture polarimetry of Comet 21P//Giacobini-Zinner and Comet C//1989 U5 (Linear) are presented. Observations were carried out with the 2-m telescope of Pik Terskol Observatory and with the 0.7-m telescope of Kharkov State University in November 1998 and January 1999. The new observations and published data indicate an anomalous spectral dependence of polarization of Giacobini-Zinner, namely, a negative wavelength gradient of the degree of polarization. It is shown that this effect is not caused by the presence of molecular emission in the pass band of the employed filter. The uncommon spectral trend of polarization of Comet Giacobini-Zinner may be caused by a large content of organic matter in its dust or an overabundance of large particles as compared to the other comets.
Bonev Tanyu
Jockers Klaus
Karpov Nikolay
Kiselev Nikolai N.
Rosenbush Vera K.
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