175 papers found
Refreshing results…
X-ray spectral evolution of high redshift quasars
ROSAT observations of four unidentified EMSS sources
Infrared to x-ray spectral energy distributions of high redshift quasars
The complex optical to soft x-ray spectrum of the low-redshift radio-quiet quasars
Compton cooling of jets as the origin of radio-quiet quasars
X-ray absorption toward the red quasar 3C 212
Absorption in X-ray spectra of high-redshift quasars
Optical/UV/soft X-ray quasar spectra: Models vs. observations
The ROSAT spectrum of 3C 351 - A warm absorber in an X-ray-'quiet' quasar?
Ten new BL Lacertae objects discovered by an efficient X-ray/radio/optical technique
PKS 0483-436 - A high-redshift quasar with strong X-ray absorption
EXOSAT X-ray spectra of quasars
Weak bump quasars
Constraints on quasar accretion disks from the optical/ultraviolet/soft X-ray big bump
X-ray spectra of PG quasars. II - The X-ray-ultraviolet excess of PG 1211 + 143
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