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The percentage of stellar light re-radiated by dust in late-type Virgo Cluster galaxies

C. C. Popescu·R. J. Tuffs
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Abstract

We show that the mean percentage of stellar light re-radiated by dust is ~30 percent for the Virgo Cluster late-spirals measured with ISOPHOT by Tuffs et al. (2002). A strong dependence of this ratio with morphological type was found, ranging from typical values of ~15 percent for early spirals to up to ~50 percent for some late spirals. The extreme BCDs can have even higher percentages of their bolometric output re-radiated in the thermal infrared. Luminosity correction factors for the cold dust component are given for general use in converting far-infrared (FIR) luminosities derived from IRAS.

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C. C. Popescu, R. J. Tuffs. 2002-08-14. The percentage of stellar light re-radiated by dust in late-type Virgo Cluster galaxies. https://doi.org/10.1046/j.1365-8711.2002.05881.x

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