The emission and distribution of dust of the torus of NGC 1068

We present observations of NGC 1068 covering the \(19.7-53.0\) \(\mu\)m wavelength range using FORCAST and HAWC+ onboard SOFIA. Using these observations, high-angular resolution infrared (IR) and sub-mm observations, we find an observational turn-over of the torus emission in the \(30-40\) \(\mu\)m...

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Veröffentlicht in:arXiv.org 2018-04
Hauptverfasser: Lopez-Rodriguez, Enrique, Fuller, Lindsay, Alonso-Herrero, Almudena, Efstathiou, Andreas, Ichikawa, Kohei, Levenson, Nancy A, Packham, Chris, Radomski, James, Cristina Ramos Almeida, Benford, Dominic J, Berthoud, Marc, Hamilton, Ryan, Harper, Doyal, Kovavcs, Attila, Santos, Fabio P, Staguhn, J, Herter, Terry
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Sprache:eng
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Zusammenfassung:We present observations of NGC 1068 covering the \(19.7-53.0\) \(\mu\)m wavelength range using FORCAST and HAWC+ onboard SOFIA. Using these observations, high-angular resolution infrared (IR) and sub-mm observations, we find an observational turn-over of the torus emission in the \(30-40\) \(\mu\)m wavelength range with a characteristic temperature of \(70-100\) K. This component is clearly different from the diffuse extended emission in the narrow line and star formation regions at 10-100 \(\mu\)m within the central 700 pc. We compute \(2.2-432\) \(\mu\)m 2D images using the best inferred \textsc{clumpy} torus model based on several nuclear spectral energy distribution (SED) coverages. We find that when \(1-20\) \(\mu\)m SED is used, the inferred result gives a small torus size (\(
ISSN:2331-8422
DOI:10.48550/arxiv.1804.04134