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Chapter and Conference Paper
The World Space Observatory (WSO/UV) Archive: Requirements for Interoperation
The World Space Observatory (WSO/UV) is a space project for an ultraviolet telescope which has to fulfill the needs and scientific requirements of a worldwide community. For this very reason, the project devel...
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Article
Bi-Dimensional Spectrography at HST-Like Spatial Resolution: [OIII] Kinematics and Ionization in the NLR of NGC 1068
We present a study at HST-like spatial resolution of the gas kinematics in the innermost part of NGC 1068. This work is based on observations with the integral field spectrograph TIGER mounted on the CFH Teles...
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Chapter and Conference Paper
Effects of Dust and Resonance Scattering on the UV Spectrum of Radio Galaxies
In the powerful, high redshift radio galaxies, it is believed that the dominant source of ionization for the interstellar gas is the hard radiation field associated with the active nucleus. The photon source i...
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Chapter and Conference Paper
ISM/Radio Material Interaction Modeling
With the outcoming of high angular resolution imaging and 3D spectrographic facilities (HST, TIGER-OASIS [1] at the CFH Telescope…), the need of spatially resolved theoretical models of the kinematic interacti...
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Chapter and Conference Paper
Matter-Bounded Photoionized Clouds
The extended ionized gas in Seyfert and Radio-Galaxies is characterized by large values of the ratio HeII/Hβ, which exceeds the value predicted by the standard photoionization model in which the ionizing continuu...
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Article
Study ofUBV photometry of the Seyfert galaxy NGC 3227
Multi-apertureUBV photometry of NGC 3227 is presented. An interpolation formula based on the galaxy profile allows the reduction of all previous measurements to a ‘standard’ aperture diaphragm.
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Chapter and Conference Paper
The spectrum of a partially ionized jet
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Article
A blue, polarized continuum source near radio galaxy PKS2152–69
The frequent occurrence of extranuclear emission line regions in radio galaxies and quasars is well known1,2, but the origin and excitation of gas at temperatures of (l–2) × 104 K, extending to distances beyond 1...
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Chapter
He II λ4686/Hβ as a Constraint on the Ionizing Continuum
Working on the assumption that the emission line filaments associated with radio-galaxies are photoionized, the relative reliability of the He II λ4686/H/β line ratio as a test of the hardness of the continuum io...
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Article
Detached nuclear-like activity in the radio galaxy PKS 2152–69
The effects of nuclear activity in galaxies are known to extend well beyond the immediate nuclear environment. This is particularly true in some quasars and the active ellipticals or radio galaxies where the i...