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Identification of a Radio Counterpart to SN 2025ulz in the S250818k Localization Area

  • Authors: Tanner O'Dwyer, Alessandra Corsi, Deepika Yadav, Kunal P. Mooley, Raphael Baer-Way, Poonam Chandra, Gregg Hallinan, Mansi M. Kasliwal, Lauren Rhodes, Oleg M. Smirnov, Davide Lazzati, Joeri van Leeuwen, Adam Deller, Pikky Atri, Tanazza Khanam

Tanner O’Dwyer et al 2026 The Astrophysical Journal Letters 1009 .

  • Provider: AAS Journals

Caption: Figure 3.

A Chevalier diagram (peak radio luminosity versus peak time) with the 10 GHz detection (likely peak) of SN 2025ulz (gray dot) compared to that of other Type IIb SNe (as indicated in the legend). Lines of constant shock velocity and mass-loss rate are shown. Type cIIb explosions thought to be linked to compact progenitors are highlighted with open red circles. See Section 3.1 for discussion.

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