Fermi-LAT spectrum of the new γ-ray PWN candidate associated with 4FGL J1124.7–5915/PSR J1124–5916, fitted simultaneously over the 50MeV-1TeV energy interval using the full dataset. The butterfly region denotes the 1σ confidence interval of the best-fit spectral model. Black and blue error bars indicate statistical uncertainties; red error bars correspond to the total uncertainties, combining statistical and systematic errors in quadrature. Systematic errors do not include uncertainties from possible source confusion.