Epifani, E. and Rotundi, A. and Foster, M.J. and Green, S.F. and Colangeli, L. and Fulle, M. and Mennella, V. and Palumbo, P. (1997) VRI imaging of comet 46P/Wirtanen. In: PLANETARY AND SPACE SCIENCE. Workshop on the Rosetta Targets NAPLES, 47 . Pergamon-Elsevier Science Ltd pp. 765-772.
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Imaging of comet 46P/Wirtanen was performed in the standard VRI filters on 10 and 11 November 1996 with the 1.0 m telescope of the South African Astronomical Observatory (SAAO). After proper processing and calibration, the images have been used to derive information about the isophote distribution, magnitude and colour indices. We observed a coma extending to at most similar to 5 x 10(3) km. We derive absolute magnitudes of the coma for the different filters and the colours V-R = 0.18 +/- 0.17 and R-I = 0.39 +/- 0.16. The Af rho value (related to the dust production rate) for the R filter-is 10.5 +/- 0.6 cm. The radial profile (azimuthally averaged) of the surface brightness in the R filter has a slope of -0.9, which is consistent with a steady-state dust production. The results are compared with other observations in different periods. (C) 1999 Elsevier Science Ltd. All rights reserved.
|Item Type:||Conference or workshop item (Paper)|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences|
|Depositing User:||M. Nasiriavanaki|
|Date Deposited:||02 Jul 2009 06:45|
|Last Modified:||02 Jul 2009 06:45|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/17313 (The current URI for this page, for reference purposes)|
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