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The First Radio View of a Type Ibn Supernova in SN 2023fyq: Understanding the Mass-loss History in the Last Decade before the Explosion

  • Authors: Raphael Baer-Way, Nayana A. J., Wynn Jacobson-Galán, Poonam Chandra, Maryam Modjaz, Samantha C. Wu, Daichi Tsuna, Raffaella Margutti, Ryan Chornock, Craig Pellegrino, Yize Dong, Maria R. Drout, Charles D. Kilpatrick, Dan Milisavljevic, Daniel Patnaude, Candice Stauffer

Raphael Baer-Way et al 2025 The Astrophysical Journal Letters 995 .

  • Provider: AAS Journals

Caption: Figure 3.

The peak spectral luminosity versus peak time for SN 2023fyq (taken at 10 GHz) in context with a variety of other radio-detected SNe (A. J. Nayana et al. 2025, and references therein). The speeds noted on the diagonal lines are the shock velocities for pure SSA. 2023fyq is distinct from most other stripped-envelope SNe, likely due to a denser CSM, but it does not reach the peak spectral luminosity of many SNe IIn.

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