Spectropolarimetry of SN 2001el in NGC 1448: Asphericity of a Normal Type Ia Supernova

@article{Wang2003SpectropolarimetryOS,
  title={Spectropolarimetry of SN 2001el in NGC 1448: Asphericity of a Normal Type Ia Supernova},
  author={Lifan Wang and Dietrich Baade and Peter Hoeflich and Alexei M. Khokhlov and J. Craig Wheeler and Daniel Kasen and Peter E. Nugent and Saul Perlmutter and Claes Fransson and Peter Lundqvist},
  journal={The Astrophysical Journal},
  year={2003},
  volume={591},
  pages={1110 - 1128}
}
High-quality spectropolarimetry (range 417-860 nm; spectral resolution 1.27 nm and 0.265 nm pixel-1) of the Type Ia supernova (SN Ia) 2001el was obtained with the ESO Very Large Telescope Melipal (+FORS1) at five epochs. The spectra a week before maximum and around maximum indicate photospheric expansion velocities of about 10,000 km s-1. Prior to optical maximum, the linear polarization of the continuum was ≈0.2%-0.3% with a constant position angle, showing that SN 2001el has a well-defined… 

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