Other
Scientific paper
Dec 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...18910507m&link_type=abstract
American Astronomical Society, 189th AAS Meeting, #105.07; Bulletin of the American Astronomical Society, Vol. 28, p.1415
Other
Scientific paper
Recent observations of the 3mu m water-ice polarization feature toward the Becklin - Neugebauer object provide us with a unique opportunity to constrain the grain population in this line of sight. From the data, we constructed a model reproducing both the continuum and feature polarization. Our model assumes a ``layered slab'' structure of different grain populations; some are bare cores while others have ice mantles. Through this layered structure model, we are able to reproduce the observed rotation of the plane of polarization across the water-ice polarization feature. This has previously been interpreted as two separate components aligned in different directions, one bare and one mantled. We have quantified this respective difference in alignment between the two components. We have also investigated the factors contributing to differences between the extinction and polarization features based on a simple Lorentz oscillator model.
Chrysostomou Antonio
Messinger David W.
Roberge Wayne G.
Whittet Doug C. B.
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