[hal-00793260] Dust properties in comet 67P/Churyumov- Gerasimenko's coma during its 2008-2009 apparition from polarization observations. (poster)

Comet 67P/Churyumov-Gerasimenko is the main target of the Rosetta mission. Remote observations from India and France, of the scattered light (and mainly its linear polarization) by the dust allowed us to conclude on different physical properties pre- and post-perihelion. Large dust particles are likely ejected from the surface pre-perihelion and small grains eventually in fluffy aggregates post-perihelion possibly originating from the subsurface.



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