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Journal Article

Far-Infrared mapping of NGC 891

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Popescu,  C.C.
Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Tuffs,  R.J.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Citation

Popescu, C., Tuffs, R., Kylafis, N., & Madore, B. (2004). Far-Infrared mapping of NGC 891. Astronomy & Astrophysics, 414(1), 45-52. doi:10.1051/0004-6361:20031581.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8CAB-B
Abstract
We present deep maps of dust emission from the edge-on spiral galaxy NGC 891, obtained with the ISOPHOT instrument on board the Infrared Space Observatory in broad band filters with reference wavelengths centered on 170 and 200 μm. Using new processing methods to remove the effects of detector transients from the data, we detect cold dust at high dynamic range. The observed surface brightness distribution and colour profile of the far-infrared (FIR) emission are found to be in good agreement with predictions for their counterparts derived from the model of Popescu et al. (2000a). Thus, NGC 891 is the first galaxy for which an intrinsic distribution of dust and stars could be found which simultaneously accounts for both the optical/near-IR and FIR morphologies.