activity
19932026
most citedThe Soft X-Ray Properties of a Complete Sample of Optically Selected Quasars II. Final Results

552 citations · 6.7k across the 104 of their papers we have counts for

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Showing 2021Show all

6 papers · 1 filter

astro-ph.GA2021★ 39 cited

A New Iron Emission Template for Active Galactic Nuclei. I. Optical Template for the H region

Daeseong Park, Aaron J. Barth, Luis C. Ho +1

We present a new empirical template for iron emission in active galactic nuclei (AGN) covering the A range. The new template is based on a spectrum of the narrow-line S…

astro-ph.GA2021★ 28 cited

Radiation pressure confinement -- V. The predicted free-free absorption and emission in active galactic nuclei

Alexei Baskin, Ari Laor

The effect of radiation pressure compression (RPC) on ionized gas in Active Galactic Nuclei (AGN) likely sets the photoionized gas density structure. The photoionized gas free-free…

astro-ph.GA2021★ 25 cited

The PG-RQS survey. Building the radio spectral distribution of radio-quiet quasars. I. The 45-GHz data

R. D. Baldi, A. Laor, E. Behar +4

The origin of the radio emission in radio-quiet quasars (RQQs) remains unclear. Radio emission may be produced by a scaled-down version of the relativistic jets observed in radio-l…

astro-ph.HE2021★ 29 cited

What controls the UV-to-X-ray continuum shape in quasars?

John D. Timlin, W. N. Brandt, Ari Laor

We present an investigation of the interdependence of the optical-to-X-ray spectral slope (), the HeII equivalent-width (EW), and the monochromatic luminosity at 2500 A…

astro-ph.HE2021★ 1 cited

The aox--HeII EW Connection in Radio-Loud Quasars

John D. Timlin, Shifu Zhu, W. Niel Brandt +1

Radio-loud quasars (RLQs) are known to produce excess X-ray emission, compared to radio-quiet quasars (RQQs) of the same luminosity, commonly attributed to jet-related emission. Re…

astro-ph.GA2021★ 18 cited

Spectropolarimetry of low redshift Quasars: origin of the polarization and implications for black hole mass estimates

Alessandro Capetti, Ari Laor, Ranieri D. Baldi +2

We present the results of high signal-to-noise ratio VLT spectropolarimetry of a representative sample of 25 bright type 1 AGN at z<0.37, of which nine are radio-loud. The sample c…