Reanalysis of Fermi-LAT observations indicates that gamma-ray emission from NGC 2403 and NGC 3424 originates from supernova ejecta and an obscured AGN, respectively, rather than star formation activity.
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Probing the $\gamma$-ray Emission Origin of Two Star-forming Galaxies NGC 2403 and NGC 3424 with the Fermi-LAT
Reanalysis of Fermi-LAT observations indicates that gamma-ray emission from NGC 2403 and NGC 3424 originates from supernova ejecta and an obscured AGN, respectively, rather than star formation activity.