# Content of the zip archive

combined_bkg.arf	ARF of the background spectrum
combined_bkg.rmf	RMF of the background spectrum
combined_bkg.pi		Background spectrum
combined_src.arf	ARF of the QSO spectrum
combined_src.rmf	RMF of the QSO spectrum
combined_src.pi		Unbinned QSO spectrum
combined_grp.pi		Grouped QSO spectrum (min. one count per bin)

For further information on the extraction parameters and procedure please refer to Nanni et al. 2018 (Astronomy & Astrophysics, 614, A121).