The Optical-Ultraviolet Continuum of a Sample of QSO[CLC]s[/CLC]
The Optical-Ultraviolet Continuum of a Sample of QSO[CLC]s[/CLC]
The average optical-UV continuum shape of QSOs is investigated, using spectra of 62 QSOs that have good relative photometric calibrations. The QSO spectra were extracted from two complete colorselected samples in the magnitude interval mB ≈ 15–20. The analysis is performed by fitting power-law continua fν ∝ να in well-defined …