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BeppoSAX observations of Narrow-Line Seyfert 1 galaxies:I. Ton S 180
A. Comastri, F. Fiore, M. Guainazzi +10
We report on the first spectrum up to 10 keV of the bright narrow-line Seyfert 1 galaxy Ton S 180, obtained with the imaging instruments onboard BeppoSAX. This is the first observe…
The Optical Polarization and Warm Absorber in IRAS 17020+4544
Karen M. Leighly, Laura E. Kay, Beverley J. Wills +2
We report the detection of ionized absorption in the ASCA spectrum of the narrow-line Seyfert 1 galaxy IRAS 17020+4544. Subsequent optical spectropolarimetry revealed high polariza…
Evidence for Relativistic Outflows in Narrow-line Seyfert 1 Galaxies
Karen M. Leighly, Richard F. Mushotzky, Kirpal Nandra +1
We report the observation of features near 1 keV in the ASCA spectra from three ``Narrow Line Seyfert 1'' (NLS1) galaxies. We interpret these as oxygen absorption in a highly relat…
X-ray Observations of the Broad-Line Radio Galaxy 3C 390.3
Karen M. Leighly, Paul T. O'Brien, Rick Edelson +5
We present the data and preliminary analysis for a series of 90 ROSAT HRI and two ASCA observations of the broad-line radio galaxy 3C 390.3. These data were obtained during the per…
Evidence for Nonlinear X-ray Variability from the Broad-line Radio Galaxy 3C 390.3
K. M. Leighly, Paul T. O'Brien
We present analysis of the light curve from the ROSAT HRI monitoring observations of the broad-line radio galaxy 3C 390.3. Observed every three days for about 9 months, this is the…
AGN Watch Continuum Monitoring of Radio-quiet and Radio-loud AGN
Paul T. O'Brien, Karen M. Leighly
The International AGN Watch has monitored a number of radio-quiet and radio-loud Active Galactic Nuclei - the most luminous objects in the universe. We present a review of the main…