Nebular spectra of SN 2023ixf reveal asymmetric ejecta with ≥2 Ni-rich plumes and initially aspherical dense CSM that has been swept up, producing intermediate-width and high-velocity Hα components.
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Evidence for Asymmetric Ejecta and Circumstellar Material in SN 2023ixf Inferred from Extensive Nebular-phase Observations
Nebular spectra of SN 2023ixf reveal asymmetric ejecta with ≥2 Ni-rich plumes and initially aspherical dense CSM that has been swept up, producing intermediate-width and high-velocity Hα components.