Asymmetric expansion of the Fe ejecta in Kepler’s supernova remnant

@article{Kasuga2018AsymmetricEO,
  title={Asymmetric expansion of the Fe ejecta in Kepler’s supernova remnant},
  author={Tomoaki Kasuga and Toshiki Sato and Koji Mori and Hiroya Yamaguchi and Aya Bamba},
  journal={Publications of the Astronomical Society of Japan},
  year={2018}
}
The ejecta kinematics of supernova remnants (SNRs) is one of crucial clues to understand the explosion mechanism of type Ia supernovae (SNe). In particular, the kinematic asymmetry of iron-peak elements provides the key to understanding physical processes taking place in the core of the exploding white dwarfs (WDs) although it has been poorly understood by observations. In this paper, we show for the first time the asymmetric expansion structure in the line-of-sight direction of Fe ejecta in… 

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