We present spectropolarimetry of the Type Ic supernova SN 2002ap and give a preliminary analysis. Distinct polarization profiles were seen only in the O I λ 7773 multiplet/Ca II IR triplet absorption trough at maximum light and in the Ca II IR triplet absorption trough a month later, with the latter showing a peak polarization as high as ∼ 2 %. The intrinsic polarization shows three clear position angles: 80o for the February continuum, 120o for the February line feature, and 150o for the March data. We conclude that there are multiple asymmetric components in the ejecta. We suggest that the supernova has a bulk asymmetry with an axial ratio projected on the sky that is different from 1 by about 10 %. Furthermore, we suggest very speculatively that a high velocity ejecta component moving faster than ∼ 0.115c (e.g., a jet) contributes to polarization in the February epoch.
8th Asian-Pacific Regional Meeting, Volume II
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