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Normal Gas-Rich Galaxies in the Far-Infrared: The Legacy of ISOPHOT

Richard J. Tuffs·Cristina C. Popescu
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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 power 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.

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Richard J. Tuffs, Cristina C. Popescu. 2005-02-09. Normal Gas-Rich Galaxies in the Far-Infrared: The Legacy of ISOPHOT. https://doi.org/10.1063/1.1913949

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