Free Access
Astron. Astrophys. Suppl. Ser.
Volume 129, Number 3, May_I 1998
Page(s) 489 - 493
Published online 15 May 1998
DOI: 10.1051/aas:1998201

A&A Supplement series, Vol. 129, May I 1998, 489-493

Received August 21; accepted October 20, 1997

Polarimetric observations of the comet Hale-Bopp

S. Ganesh - U.C. Joshi - K.S. Baliyan - M.R. Deshpande

Physical Research Laboratory, Ahmedabad - 380 009, India


The continuum polarization observations, spread over a period from October 1996 to May 1997, of the coma region of comet Hale Bopp are made at various phase angles, varying from 17.1 to 47.4 degrees, using IAU/IHW filter set. The linear polarization measured through 3650, 4845 and 6840 Å  bands shows stronger wavelength dependence as compared to what is seen in comet Halley at similar phase angles. Comparisons are made with Comet Halley polarization properties and it is inferred that Comet Hale Bopp has smaller grains than those found for Comet Halley. However, this comet shows similarity with Comet Halley so far as the albedo of the grains is concerned. This comet appears to belong to the high polarization class in the classification scheme based on polarization characteristics.

keywords: polarization -- comet: P/Halley; Hale-Bopp C/1995 O1

Copyright by the European Southern Observatory (ESO)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.