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Recent polarimetric observations of comet 67 P/Churyumov-Gerasimenko

Published online by Cambridge University Press:  06 April 2010

Anny-Chantal Levasseur-Regourd ,
Edith Hadamcik ,
Asoke K. Sen ,
Ranjan Gupta  and
Jeremie Lasue
Anny-Chantal Levasseur-Regourd
Affiliation:
UPMC Univ. Paris 06/LATMOS-IPSL, BP 3, 91371 Verrieres, France email: aclr@latmos.ipsl.fr, edith.hadamcik@latmos.ipsl.fr
Edith Hadamcik
Affiliation:
UPMC Univ. Paris 06/LATMOS-IPSL, BP 3, 91371 Verrieres, France email: aclr@latmos.ipsl.fr, edith.hadamcik@latmos.ipsl.fr
Asoke K. Sen
Affiliation:
Assam Univ., Silchar 788001, India email: asokesen@yahoo.com
Ranjan Gupta
Affiliation:
IUCAA, Post Bag 4, Ganeshkhind, Pune-411007, India email: rag@iucaa.ernet.in
Jeremie Lasue
Affiliation:
LPI, 3600 Bay Area Blvd, Houston, TX 77058-1113USA LANL, Space Science and Applications, ISR-1, Mail Stop D-466, Los Alamos, NM 87545USA email: lasue@lpi.usra.edu
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Abstract

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Remote observations of solar light scattered by dust in comet 67P/Churyumov-Gerasimenko coma are of major importance to assess the properties of the dust and thus to prepare the rendezvous of the Rosetta spacecraft with comet 67P/Churyumov-Gerasimenko. We present polarimetric data obtained from India in December 2008 and France in March 2009. Compared with previous observations of this comet and of other Jupiter family comets, they confirm that it is dust-poor, although it may exhibit outbursts leading to the ejection of dust particles from its subsurface, especially after its perihelion passage.

Keywords

Techniquespolarimetriccometsindividual (67P/Churyumov-Gerasimenko)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 259 - 262
Copyright
Copyright © International Astronomical Union 2010

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