12 papers found
Refreshing results…
Multiphase quasar-driven outflows in PG 1114+445
Ensemble quasar spectral variability from the XMM-Newton Serendipitous Source Catalogue
XMM‐NewtonObservation of the Cluster Zw 1305.4+2941 in the Field SA 57
Low-Luminosity AGNs in SA57
Redshift Dependence of QSO Spectral Variability
A new echo-mapping campaign at intermediate redshift
A Project for a New Echo-Mapping Campaign at Intermediate Redshift
Spectral Slope Variability of BL Lacertae Objects in the Optical Band
Quasar Spectral Slope Variability in the Optical Band
Spectral variability of QSOs in the optical band
BeppoSAX observations of 2 Jy lobe-dominated broad-line sources: the discovery of a hard x-ray component
The evolution of the QSO luminosity function up to Z = 4 - The role of K-correction uncertainties
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