Predominantly left-handed circular polarization in comets: Does it indicate L-enantiomeric excess in cometary organics?

Details Predominantly left-handed circular polarization in comets: Does it indicate L-enantiomeric excess in cometary organics? Predominantly left-handed circular polarization in comets: Does it indicate L-enantiomeric excess in cometary organics?

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..251..311r&link_type=abstract

Organic Matter in Space, Proceedings of the International Astronomical Union, IAU Symposium, Volume 251, p. 311-312

Mathematics

Logic

1

Comets, Observations, Polarization, Light Scattering

Scientific paper

Polarimetric observations demonstrated that all comets with significant values of circular polarization show predominantly left handed circularly polarized light. We discuss the presence of homochiral organics in cometary materials as a source of the observed circular polarization. We have studied the effect of chirality on light scattering properties of cometary dust considering particles that possess optical activity. Our investigations show that the cometary dust may include optically active materials which can be prebiological homochiral organics.

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