TY - RPRT TI - Revisiting the Supernova Engines in the 3C 397 and W49B Supernova Remnants AU - Treyturik, Cole [University of Manitoba, Winnipeg, MB (Canada)] (ORCID:0009000556376538) AU - Braun, Chelsea [University of Manitoba, Winnipeg, MB (Canada); Fredonia State University of New York, Fredonia, NY (United States)] (ORCID:000000015581486X) AU - Safi-Harb, Samar [University of Manitoba, Winnipeg, MB (Canada)] (ORCID:0000000161897665) AU - Fryer, Christopher Lee [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); George Washington University, Washington, DC (United States)] (ORCID:0000000326240056) AU - Ferrand, Gilles [University of Manitoba, Winnipeg, MB (Canada); Inst. of Physical and Chemical Research (RIKEN), Wako (Japan)] (ORCID:0000000242318717) PY - 2026 DO - 10.3847/1538-4357/ae2c50 UR - https://www.osti.gov/biblio/3028223 ID - 3028223 ER -