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- W2950588822 abstract "The long-term variability of a sample of 149 optically selected QSOs in the field of the Selected Area 94 has been studied in the R-band. The relations between variability and luminosity and between variability and redshift have been investigated by means of ``robust'' statistical estimators, allowing to disentangle the effects of the measurement errors. The results are compared with the corresponding properties of the variability in the B-band for the same sample. An anti-correlation between the R-band variability and the intrinsic luminosity is found, analogously to what is observed in the B-band. The amplitude of the R-band variability turns out to be smaller (of a factor $1.13 pm 0.05$) than the B-band variability. The implications in terms of the black-hole, starburst and microlensing models are discussed." @default.
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- W2950588822 date "1996-10-15" @default.
- W2950588822 modified "2023-10-18" @default.
- W2950588822 title "The optical variability of QSOs. II. The wavelength dependence" @default.
- W2950588822 hasPublicationYear "1996" @default.
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