AGN Dusty Tori as a Clumpy Two-Phase Medium: the 10 μm Silicate Feature
Abstract: We investigated the emission of active galactic nuclei dusty tori in the infrared domain, with a focus on the 10 μm silicate feature. We modeled the dusty torus as a clumpy two-phase medium with high-density clumps and a low-density medium filling the space between the clumps. We used a three-dimensional radiative transfer code to obtain spectral energy distributions and images of tori at different wavelengths. We calculated a grid of models for different parameters and analyzed the influence of these parameters on the shape of the mid-infrared emission. A corresponding set of clumps-only models and models with a smooth dust distribution is calculated for comparison. We found that the dust distribution, the optical depth and a random arrangement of clumps in the innermost region, all have an impact on the shape and strength of the silicate feature. The 10 μm silicate feature can be suppressed for some parameters, but models with smooth dust distribution are also able to produce a wide range of the silicate feature strength.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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AGN Dusty Tori as a Clumpy Two-Phase Medium: the 10 μm Silicate Feature ; volume:20 ; number:3 ; year:2011 ; pages:490-494 ; extent:5
Open astronomy ; 20, Heft 3 (2011), 490-494 (gesamt 5)
- Creator
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Stalevski, Marko
Fritz, Jacopo
Baes, Maarten
Nakos, Theodoros
Popović, Luka Č.
- DOI
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10.1515/astro-2017-0326
- URN
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urn:nbn:de:101:1-2405271707143.549129562778
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:57 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Stalevski, Marko
- Fritz, Jacopo
- Baes, Maarten
- Nakos, Theodoros
- Popović, Luka Č.
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