Starburst Galaxies: Why the Calzetti Dust Extinction Law?
The empirical reddening function for starburst galaxies generated by Calzetti and her coworkers has proved very successful and is now used widely in the observational literature. Despite its success, however, the physical basis for this extinction law, or more correctly, attenuation law remains weak. Here we provide a physical explanation for the Calzetti law based on a turbulent interstellar medium. In essence, this provides a lognormal distribution of column densities, giving a wide range of...[Show more]
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|Source:||Astrophysical Journal, The|
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