337 citations · 820 across the 12 of their papers we have counts for
5 papers · 1 filter
K-band polarimetry of an Sgr A* flare with a clear sub-flare structure
L. Meyer, R. Schoedel, A. Eckart +3
Context: The supermassive black hole at the Galactic center, SgrA*, shows frequent radiation outbursts, often called 'flares'. In the near-infrared some of these flares were report…
Near-infrared polarimetry setting constraints on the orbiting spot model for Sgr A* flares
L. Meyer, A. Eckart, R. Schoedel +4
Context: Recent near-infrared polarization measurements of SgrA* show that its emission is significantly polarized during flares and consists of a non- or weakly polarized main fla…
The small dispersion of the mid IR -- hard X-ray correlation in AGN
Hannes Horst, Alain Smette, Poshak Gandhi +1
Context: We investigate mid-infrared and X-ray properties of the dusty torus in unification scenarios for active galactic nuclei. Aims: We use the relation between mid IR and hard…
A Gravitational Instability-Driven Viscosity in Self-Gravitating Accretion Disks
Wolfgang J. Duschl, Markward Britsch
We derive a viscosity from gravitational instability in self-gravitating accretion disks, which has the required properties to account for the observed fast formation of the first…
Radio-loud Narrow-Line Type 1 Quasars
S. Komossa, W. Voges, D. Xu +5
We present the first systematic study of (non-radio-selected) radio-loud narrow-line Seyfert 1 (NLS1) galaxies. Cross-correlation of the `Catalogue of Quasars and Active Nuclei' wi…