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A Simple Model For Mid-Infrared Emission from Normal Galaxies

B. Nikolic·P. Alexander·D. Ford
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Abstract

We have combined up-to-date stellar population synthesis models, a simple radiative transfer approach, and a fully comprehensive dust model with the aim of developing a simple but quantitative way of interpreting the mid-infrared spectra of galaxies. We apply these models to the observed correlations of mid-infrared luminosities (at 8 and 24 micron) with the star-formation rate of normal galaxies and find that the observations are naturally reproduced by our models. We further find that the observed 24 micron correlation places a weak constraint on relative distribution of dust and stars.

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B. Nikolic, P. Alexander, D. Ford. 2006-03-17. A Simple Model For Mid-Infrared Emission from Normal Galaxies. https://arxiv.org/abs/astro-ph/0603477

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