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Polarimetry Observations of Comets: Status, Questions, Future Pathways

Dean C. Hines 1 Anny Chantal Levasseur-Regourd 2 
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : Polarimetric observations of comets have provided crucial insight into the composition and evolution of cometary dust particles. Herein, we present a brief overview of the polarization properties observed in comets, and some possible interpretations. We also discuss recent imaging polarimetry observations of C/2012 S1 (ISON) and 67 P/Churyumov-Gerasimenko using the Hubble Space Telescope. The observations of 67 P/Churyumov-Gerasimenko are of particular interest, as they were timed to be contemporary with the initial rendezvous of Rosetta and the subsequent landing of the probe Philae. We also outline some unanswered questions and future developments that will greatly enhance our ability to further leverage the power of polarimetry for cometary research.
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Submitted on : Friday, December 4, 2015 - 8:20:47 AM
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Dean C. Hines, Anny Chantal Levasseur-Regourd. Polarimetry Observations of Comets: Status, Questions, Future Pathways. Planetary and Space Science, Elsevier, 2016, 123, pp.41-60. ⟨10.1016/j.pss.2015.11.016⟩. ⟨insu-01237928⟩



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