Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21741005t&link_type=abstract
American Astronomical Society, AAS Meeting #217, #410.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Observations of polarization in supernovae (SNe) at early times have indicated the presence of asymmetries that vary in both magnitude and orientation for different elements in the ejecta. One explanation for these observations is local chemical inhomogeneities ("clumps") in the ejecta above the region which forms the continuum. To understand the effects of clumpiness on spectropolarimetric observations, we have used a fast, flexible, approximate semi-analytic code for modeling polarized line radiative transfer within three-dimensional inhomogeneous rapidly expanding atmospheres to model a wide range of clump parameter space. The results of the model make predictions that constrain the size and number of clumps that could lead to a given polarimetric signature. This talk will present a test of the model and the resulting predictions for VLT spectropolarimetric observations of SN2006X.
This project was funded by the National Science Foundation grant AST-0807664 and through the Research Experiences for Undergraduates (REU) program grant NSF AST-1004872.
Boom C.
Tabetha Hole K.
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