Normal gas-rich galaxies in the far-infrared: the legacy of ISOPHOT

Tuffs, R. J.; Popescu, C. C.

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Normal gas-rich galaxies in the far-infrared: the legacy of ISOPHOT

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

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

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Citation

Tuffs, R. J., & Popescu, C. C. (2005). Normal gas-rich galaxies in the far-infrared: the legacy of ISOPHOT. In C. C. Popescu, & R. J. Tuffs (Eds.), The Spectral Energy Distribution of Gas-Rich Galaxies: Confronting Models with Data (pp. 344-363). Melville, NY, USA: American Institute of Physics.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-89F8-6

Abstract

Following on from IRAS, the ISOPHOT instrument on board the Infrared Space Observatory (ISO) has provided a huge advancement in our knowledge of the phenomenology of the far-infrared (FIR) emission of normal galaxies and the underlying physical processes. Highlights include: the discovery of an extended cold dust emission component, present in all types of gas-rich galaxies and carrying the bulk of the dust luminosity; the definitive characterisation of the spectral energy distribution in the FIR, revealing the channels through which stars powers the FIR light; the derivation of realistic geometries for stars and dust from ISOPHOT imaging and the discovery of cold dust associated with HI extending beyond the optical body of galaxies.