activity
19982008
most citedSpitzer Quasar and ULIRG Evolution Study (QUEST): II. The Spectral Energy Distributions of Palomar-Green Quasars

319 citations · 1.8k across the 14 of their papers we have counts for

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Showing 2003 · astro-phShow all

7 papers · 2 filters

astro-ph2003

The Iron Unresolved Transition Array in Active Galactic Nuclei

Hagai Netzer

The unresolved transition array (UTA) of iron M-shell ions is a prominent absorption feature in the X-ray spectrum of many active galactic nuclei (AGNs). Modeling photoionized plas…

astro-ph2003

The Ionized Gas and Nuclear Environment in NGC 3783. IV. Variability and Modeling of the 900 ks CHANDRA Spectrum

H. Netzer, S. Kaspi, E. Behar +12

We present a detailed spectral analysis of the data obtained from NGC 3783 during the period 2000-2001 using Chandra. This analysis leads us to the following results. 1) NGC 3783 f…

astro-ph2003

ISO spectroscopy of star formation and active nuclei in the luminous infrared galaxy NGC 6240

D. Lutz, E. Sturm, R. Genzel +4

We present Infrared Space Observatory mid- and far-infrared spectroscopy of the merging galaxy NGC 6240, an object presenting many aspects of importance for the role of star format…

astro-ph2003

Continuum Shielding and Flow Dynamics in Active Galactic Nuclei

Doron Chelouche, Hagai Netzer

We study the ionization, thermal structure, and dynamics of AGN flows which are partially shielded from the central continuum. We utilize detailed non-LTE photoionization and radia…

astro-ph2003

The Ionized Gas and Nuclear Environment in NGC 3783 III. Detection of a Decreasing Radial Velocity in an Intrinsic UV Absorber

J. R. Gabel, D. M. Crenshaw, S. B. Kraemer +14

We report an intrinsic absorber with decreasing outflow velocity in the Seyfert 1 galaxy NGC 3783. This is the first detection of a change in radial velocity in an outflow associat…

astro-ph2003

Non-Sobolev modelling of radiation pressure driven flows in Active Galactic Nuclei

Doron Chelouche, Hagai Netzer

We present a new general scheme for calculating the structure and dynamics of radiation pressure driven, photoionized flows. The new method goes one step beyond the Sobolev approxi…