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On the missing 2175 A-bump in the Calzetti extinction curve

Fischera, Joerg; Dopita, Michael


Aims. The aim of the paper is to give a physical explanation of the absence of the feature in the Calzetti extinction curve. Methods.We analyze the dust attenuation of a homogeneous source seen through a distant inhomogeneous distant screen. The inhomogeneities are described through an idealized isothermal turbulent medium where the probability distribution function (PDF) of the column density is log-normal. In addition it is assumed that below a certain critical column density the carriers of...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201116644
Access Rights: Open Access


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