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Evidence for a receding dust sublimation region around a supermassive black hole
Makoto Kishimoto, Sebastian F. Hoenig, Robert Antonucci +6
The near-IR emission in Type 1 AGNs is thought to be dominated by the thermal radiation from dust grains that are heated by the central engine in the UV/optical and are almost at t…
A diversity of dusty AGN tori: Data release for the VLTI/MIDI AGN Large Program and first results for 23 galaxies
Leonard Burtscher, Klaus Meisenheimer, Konrad R. W. Tristram +9
The AGN-heated dust distribution (the "torus") is increasingly recognized not only as the absorber required in unifying models, but as a tracer for the reservoir that feeds the nuc…
Dust in the polar region as a major contributor to the IR emission of AGN
Sebastian F. Hoenig, Makoto Kishimoto, Konrad R. W. Tristram +7
(abridged) It is generally assumed that the distribution of dust on parsec scales forms a geometrically- and optically-thick entity in the equatorial plane around the accretion dis…
Parsec-scale dust emission from the polar region in the type 2 nucleus of NGC 424
Sebastian F. Hoenig, Makoto Kishimoto, Robert Antonucci +4
Advancements in infrared IR open up the possibility to spatially resolve AGN on the parsec-scale level and study the circumnuclear dust distribution, commonly referred to as the "d…
Probing the innermost dusty structure in AGN with mid-IR and near-IR interferometers
Makoto Kishimoto, Sebastian F. Hoenig, Robert Antonucci +5
With mid-IR and near-IR long-baseline interferometers, we are now mapping the radial distribution of the dusty accreting material in AGNs at sub-pc scales. We currently focus on Ty…
The complexity of parsec-scaled dusty tori in AGN
K. R. W. Tristram, M. Schartmann, L. Burtscher +5
Warm gas and dust surround the innermost regions of active galactic nuclei (AGN). They provide the material for accretion onto the super-massive black hole and they are held respon…