AGN dusty tori as a clumpy two-phase medium: the 10 µm silicate feature
- Author
- Marko Stalevski (UGent) , Jacopo Fritz (UGent) , Maarten Baes (UGent) , Theodoros Nakos (UGent) and Luka Č Popović
- Organization
- Abstract
- We investigated the emission of active galactic nuclei dusty tori in the infrared domain, with a focus on the 10 mu m 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 mu m 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.
- Keywords
- RADIATIVE-TRANSFER, ACTIVE GALACTIC NUCLEI, radiative transfer, Seyfert, nuclei, galaxies: active, GALAXIES, EMISSION, QUASARS
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-2114219
- MLA
- Stalevski, Marko, et al. “AGN Dusty Tori as a Clumpy Two-Phase Medium: The 10 Μm Silicate Feature.” BALTIC ASTRONOMY, vol. 20, no. 3, 2011, pp. 490–94.
- APA
- Stalevski, M., Fritz, J., Baes, M., Nakos, T., & Popović, L. Č. (2011). AGN dusty tori as a clumpy two-phase medium: the 10 µm silicate feature. BALTIC ASTRONOMY, 20(3), 490–494.
- Chicago author-date
- Stalevski, Marko, Jacopo Fritz, Maarten Baes, Theodoros Nakos, and Luka Č Popović. 2011. “AGN Dusty Tori as a Clumpy Two-Phase Medium: The 10 Μm Silicate Feature.” BALTIC ASTRONOMY 20 (3): 490–94.
- Chicago author-date (all authors)
- Stalevski, Marko, Jacopo Fritz, Maarten Baes, Theodoros Nakos, and Luka Č Popović. 2011. “AGN Dusty Tori as a Clumpy Two-Phase Medium: The 10 Μm Silicate Feature.” BALTIC ASTRONOMY 20 (3): 490–494.
- Vancouver
- 1.Stalevski M, Fritz J, Baes M, Nakos T, Popović LČ. AGN dusty tori as a clumpy two-phase medium: the 10 µm silicate feature. BALTIC ASTRONOMY. 2011;20(3):490–4.
- IEEE
- [1]M. Stalevski, J. Fritz, M. Baes, T. Nakos, and L. Č. Popović, “AGN dusty tori as a clumpy two-phase medium: the 10 µm silicate feature,” BALTIC ASTRONOMY, vol. 20, no. 3, pp. 490–494, 2011.
@article{2114219, abstract = {{We investigated the emission of active galactic nuclei dusty tori in the infrared domain, with a focus on the 10 mu m 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 mu m 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.}}, author = {{Stalevski, Marko and Fritz, Jacopo and Baes, Maarten and Nakos, Theodoros and Popović, Luka Č}}, issn = {{1392-0049}}, journal = {{BALTIC ASTRONOMY}}, keywords = {{RADIATIVE-TRANSFER,ACTIVE GALACTIC NUCLEI,radiative transfer,Seyfert,nuclei,galaxies: active,GALAXIES,EMISSION,QUASARS}}, language = {{eng}}, location = {{Divčibare, Serbia}}, number = {{3}}, pages = {{490--494}}, title = {{AGN dusty tori as a clumpy two-phase medium: the 10 µm silicate feature}}, volume = {{20}}, year = {{2011}}, }