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| Paper: |
Mid-infrared Observations of NGC 1068 with VLT/VISIR |
| Volume: |
373, The Central Engine of Active Galactic Nuclei |
| Page: |
495 |
| Authors: |
Poncelet, A.; Doucet, C.; Perrin, G.; Sol, H.; Lagage, P.O. |
| Abstract: |
We present a speckle analysis of the active galactic nucleus (AGN) inside the archetype Seyfert type 2 galaxy NGC 1068. This study is based on 12.8 μm images obtained with the burst mode of VISIR (the Very Large Tele- scope Imager and Spectrometer in the InfraRed). The interferometric processing allows to push the resolution far below the diffraction limit of a 8 m telescope in the N band and to trace two main contributions to the mid-IR flux inside the nucleus. It also allows to partially fill the lack of visibility points at low spatial frequencies. The confrontation with VLT/MIDI (the Mid-InfrareD In- terferometer) data points helps to establish the link between dust in the vicinity of the central engine and inside the ionisation cone to get a multi-scale picture of mid-IR sources emitting in the nucleus of NGC 1068. |
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