International audienceQuasars are thought to be powered by supermassive black holes accreting surrounding gas. Central to this picture is a putative accretion disk which is believed to be the source of the majority of the radiative output. It is well known, however, that the most extensively studied disk model-an optically thick disk which is heated locally by the dissipation of gravitational binding energy-is apparently contradicted by observations in a few major respects. In particular, the model predicts a specific blue spectral shape asymptotically from the visible to the near-infrared, but this is not generally seen in the visible wavelength region where the disk spectrum is observable. A crucial difficulty has been that, towards the i...
International audienceAccretion disks around supermassive black holes are widely believed to be the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...
International audienceQuasars are thought to be powered by supermassive black holes accreting surrou...
The near-infrared shape of the big blue bump component in quasar spectra has been essentially unknow...
One primary difficulty in understanding the nature of the putative accretion disk in the central eng...
Recent models for the inner structures of active galactic nuclei (AGNs) advocate the presence of a r...
Recent models for the inner structures of active galactic nuclei (AGNs) advocate the presence of a r...
We compare the optical to soft X-ray spectral energy distributions (SEDs) of a sample of bright low-...
The rest-frame near infrared (NIR) is a key spectral range for understanding the physics of AGN, but...
We discuss several models of quasar big blue bump emission in color-color and color-luminosity diagr...
An important fraction of quasars are red at optical wavelengths, indicating (in the vast majority of...
We present Infrared Space Observatory (ISO) far-IR photometry of a complete subsample of optically s...
We investigate the optical emission from radio-loud AGN using the Parkes Half-Jansky Flat-spectrum S...
We use a semi-empirical model to reproduce the 0.1–10 μm spectral energy distribution (SED) of a sam...
International audienceAccretion disks around supermassive black holes are widely believed to be the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...
International audienceQuasars are thought to be powered by supermassive black holes accreting surrou...
The near-infrared shape of the big blue bump component in quasar spectra has been essentially unknow...
One primary difficulty in understanding the nature of the putative accretion disk in the central eng...
Recent models for the inner structures of active galactic nuclei (AGNs) advocate the presence of a r...
Recent models for the inner structures of active galactic nuclei (AGNs) advocate the presence of a r...
We compare the optical to soft X-ray spectral energy distributions (SEDs) of a sample of bright low-...
The rest-frame near infrared (NIR) is a key spectral range for understanding the physics of AGN, but...
We discuss several models of quasar big blue bump emission in color-color and color-luminosity diagr...
An important fraction of quasars are red at optical wavelengths, indicating (in the vast majority of...
We present Infrared Space Observatory (ISO) far-IR photometry of a complete subsample of optically s...
We investigate the optical emission from radio-loud AGN using the Parkes Half-Jansky Flat-spectrum S...
We use a semi-empirical model to reproduce the 0.1–10 μm spectral energy distribution (SED) of a sam...
International audienceAccretion disks around supermassive black holes are widely believed to be the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...
Cold inactive disks are believed to exist in Low Luminosity AGN (LLAGN). They may also exist in the ...